the hume-rothery (solubility) rules help to identify what elements will form a complete substitutional solid solution. which is not one of the rules

Answers

Answer 1

The effect of temperature on solubility is not included in the Hume-Rothery rules for predicting complete solid solutions.

What factors are considered in the Hume-Rothery rules for predicting complete solid solutions in metallic alloys, and what is one important consideration that is not included in these rules?

The Hume-Rothery rules are a set of guidelines used to predict which elements are likely to form complete solid solutions in metallic alloys.

The rules include factors such as atomic size, electronegativity, valence electron concentration, and crystal structure.

One thing that is not included in the Hume-Rothery rules is the effect of temperature on solubility.

While the rules consider various factors that influence solid solubility, such as the size of the atoms or the crystal structure of the elements, they do not take into account the changes in solubility that occur at different temperatures.

This is an important consideration in predicting solid solubility, as many alloys exhibit different solubilities at different temperatures.

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Related Questions

When testing the temperature of catalase, what would happen if you changed the temperature using the same tube with the same catalase and hydrogen oxide mixture?.

Answers

If we change the temperature using same tube with the same catalase and hydrogen oxide mixture, the hydrogen peroxide will break into oxygen and water molecule.

What is catalase?

It is an enzyme which catalyses the decomposition reaction of hydrogen peroxide to water and oxygen.

Its function is to protect the oxidative damage by ROS

ROS is reactive Oxygen Species.

What is an enzyme?

Enzymes are made of proteins which catalyses the biological reaction.

Effect of temperature on catalase:

Increase of temperature results in the loosening of hydrogen bond and helps the catalase to decompose hydrogen peroxide.

The change in temperature using same tube with the same catalase and hydrogen oxide mixture, the hydrogen peroxide will break into oxygen and water molecule.

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How much energy does a 9 × 108 m wavelength photon have?

Answers

Answer:

2.2 x 10⁻³⁴ J

      or

2.2 x 10⁻¹⁸ J

Explanation:

You can calculate the energy using the photon energy equation:

E = hc / λ

In this equation,

-----> E = energy (J)

-----> h = Planck's Constant (6.626 x 10⁻³⁴ J*s)

-----> c = speed of light (3.0 x 10⁸ m/s)

-----> λ = wavelength (m)

You can plug the given wavelength, along with the other constants, into the equation and simplify to find the energy.

E = hc / λ

E = (6.626 x 10⁻³⁴ J*s)(3.0 x 10⁸ m/s) / (9 x 10⁸ m)

E = 2.2 x 10⁻³⁴ J

I suspect that you may have forgotten the negative sign in front of the 8 (9 x 10⁻⁸). This would change your answer to 2.2 x 10⁻¹⁸ J.

Calculate your % yield of co2 in the reaction based on the grams of nahco3 being the limiting reagent in the reaction.

Answers

The percent yield of CO₂ is 93.3%.

What is the percent yield of CO₂?

The percent yield of a substance is given as follows:

Percent yield = actual yield/theoretical yield * 100 %

The equation of the reaction is used to determine the theoretical yield.

NaHCO₃ + CH₃COOH → CH₃COONa + H₂O + CO₂

Moe ratio of sodium bicarbonate and CO₂ is 1 : 1.

Given that sodium bicarbonate is the limiting reactant, the theoretical yield of CO₂ will be:

Moles of NaHCO₃ reacting = 2.01/84 = 0.0239 moles

Theoretical yield of CO₂ = 0.0239 moles * 22.4L/mol = 0.536 L

Actual yield = 0.50 L

Percent yield = 0.50/0.536 * 100%

Percent yield = 93.3%

In conclusion, the percent yield is the ratio of the actual yield and theoretical yield.

Note that the complete question is given below:

Calculate your % yield of co2 in the reaction based on the grams of nahco3 being the limiting reagent in the reaction between 2.01 g of sodium bicarbonate and 24.6 mL of 1.5 M acetic acid? They produce 0.50 L of at s.t.p.

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The bond_____
covalent bond.
is the actual number of bonded pairs of electrons in a

Answers

A covalent bond is the exact number of bonded pairs of electrons in a compound

One electron is added by each atom to a pair of shared electrons in a single bond. While double bonds share only one pair of electrons, triple bonds share three pairs. Bonds with multiple covalent bonds exchange several electron pairs

Covalent bonding happens when atoms share electron pairs. Atoms join together through covalent bonds to form a full electron shell, which boosts stability. By sharing their outermost (valence) electrons, atoms can fill out their outer electron shell and become stable. Nonmetals will swiftly create covalent bonds with other nonmetals in order to achieve stability.

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Match the instrument described below with the decimal place of the
value to which this instrument must be recorded.
our meter stick
our quadruple beam scale
a 100 mL cylinder
a 1 L cylinder

Answers

The decimal place value of these instrument must be recorded as (i) our meter scale = 1 (ii) our quadruple beam scale = 0.001 (iii) a 100 mL cylinder = 1 (iv) a 1 L cylinder = 0.001.

What is Meter Stick ?

Meter stick which is used to measure the length especially used in the construction industry. The meter stick is 1 meter long. The metric unit for length is meter.

What is Quadruple beam scale ?

This is the instrument which is used to measure the mass very precisely. In quadruple beam scale the reading error is 0.001.

Thus from the above conclusion we can say that The decimal place value of these instrument must be recorded as (i) our meter scale = 1 (ii) our quadruple beam scale = 0.001 (iii) a 100 mL cylinder = 1 (iv) a 1 L cylinder = 0.001.

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Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: Match the instrument described below with the decimal place of the value to which this instrument must be recorded. ( 1 , 0.01 , 0.001 , 0.1 , 10 choose)

our meter stick =

our quadruple beam scale =

a 100 ml cylinder=

a 1 L cylinder=

He nitrogen cycle is one of the most important (and complex!) of the biogeochemical cycles. Why is nitrogen important?

Answers

Nitrogen is an essential part of proteins and nucleic acids (DNA).

Why is nitrogen important?

All living things require nitrogen. It is a part of proteins, ATP, chlorophyll, DNA, and RNA. Given that it makes up a significant portion of the structures of biomolecules in living organisms, its synthesis and consumption in the biogeochemical cycle are of highest importance. Proteins are made up of amino acids (NH2 group).

The structural development of living species' genetic material (DNA, RNA) also involves nitrogen. It is a part of the nitrogenous bases, which together with other nucleotides create RNA and DNA.

Therefore, a nitrogen deficit can cause major structural issues for such an organism.

What happens if nitrogen cycle is disrupted?

A number of undesirable consequences can result from the nitrogen cycle being disrupted. For instance, an abundance of nitrogen in aquatic systems leads to eutrophication. Acid rain can be caused by a rise in atmospheric nitrogen.

The majority of ecosystems can tolerate low nitrogen levels since the majority of nitrogen is not biologically accessible in nature. Ecosystems become out of balance when humans significantly increase the quantity of nitrogen that is accessible through fertilizers, fertilizer use, and other means.

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calculate the number of moles in 2 kg of iron​

Answers

Answer:

111600 moles

Explanation:

Number of moles= Mass ×Mr, where Mr is the relative molecular mass of the substance of interest. Note that the mass is calculated in terms of grams (1 kg= 1000 g), while the Mr can be found using the periodic table.

Mass of iron

= 2 kg

= 2(1000)

= 2000 g

Mr of iron= 55.8

Number of moles

= 2000(55.8)

= 111600 mol

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es endotermica o exotermica? naoh (ac) + hcl (ac) --> nacl (ac) + h2o (l) + 58.4 kj

Answers

Answer:

Exothermic

Explanation:

Reactions which are endothermic require heat. Reactions which are exothermic release heat as a product. Therefore, since heat is a product in this reaction (58.4 kJ), it is exothermic.

Remember,

reactants ---> products

In which form are water molecules most closely bonded to each other?

Answers

Answer:

In solid

Explanation:

As a solid has very tightly packed molecules which move very difficulty and only vibrate

What is Atom?????????? ​

Answers

An atom is a particle of matter that uniquely defines a chemical

element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. Each electron is negatively charged. The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.

__Pb(NO3)2 + __NaCI = __NaNO3 + __PbCI2

Answers

Answer:

Pb(NO3)2 + 2NaCl = 2NaNO3 + PbCl2

What amino acid residue present in the specificity pocket allows trypsin to bind to peptides containing arg or lys?

Answers

The amino acid residue present in the specificity pocket allows trypsin to bind to peptides containing arg or lys will be "Asp".

Chymotrypsin breaks down peptide bonds following side chains with a lot of mass or fragrance, like those found in the amino acids phenylalanine as well as tyrosine. The substrate-binding site, also known as the specificity pocket, contains deep and features hydrophobic side chains.

A medium-sized globular protein called trypsin, also known as serine protease 1, serves as a pancreatic serine protease. This enzyme breaks down peptides on the C-terminal portion of the amino acid sequences lysine as well as arginine to hydrolyze bonds.

Therefore, the amino acid residue present in the specificity pocket allows trypsin to bind to peptides containing arg or lys will be "Asp".

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when gas evolution becomes very slow, heat the solution gently in the hood, then allow it to cool. What gas is formed in this reaction

Answers

Nitrogen gas is formed in this reaction.

Nitrogen gas

Atomic number 7 and the letter N designate nitrogen as the chemical element. Group 15 of the periodic table, often known as the pnictogens, contains nitrogen as the lightest nonmetal element. It ranks eighth in overall abundance in the Milky Way and the Solar System, making it a common element in the cosmos. Two of the element's atoms combine to create the colorless and odorless diatomic gas N2 at standard temperature and pressure. The most common element that isn't mixed, N2 makes up around 78 percent of the Earth's atmosphere. All living things contain nitrogen, which is mostly found in amino acids (and thus proteins), nucleic acids (DNA and RNA), and the energy-transfer molecule adenosine triphosphate.

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an acid accepts H and removes them from a solution, is a solution where the water molecules are intact

Answers

An acid accepts H and removes them from a solution

When placed in water, acids, bases, and salts dissociate (separate) into electrolytes (ions). Salts dissociate into a cation (that is not H+) and an anion (that is not OH-), whereas acids and bases dissociate into H+ and an anion. An acid separates into anions and hydrogen ions (H+). Strong acids produce a high concentration of H+ by dissociating every single one of their molecules . Water-based solutions,

Acid:

When a material or chemical is in solution, it releases hydrogen ions (H+), which are known as acids. All hydrogen ions (H+) and chloride ions (Cl-), which are normally bound together by ionic bonding, dissociate (separate) in water when exposed to a strong acid like hydrochloric acid (HCl). Only some ions disintegrate into hydrogen ions (H+) and bicarbonate ions (HCO3-) in a weak acid like carbonic acid (H2CO3), while others are still bound together by ionic bonds.

Define base?

A base is a chemical that, when in solution, emits hydroxyl ions -{OH). We can also define a base as a substance that releases hydroxyl ions (OH-), which mix with any hydrogen ions (H+) in the solution to generate water molecules (OH- + H+ = H2O).

Therefore, a substance that receives or accepts hydrogen ions (H+) that are already present in the solution qualifies as a base.

Because it totally dissociates into sodium ions (Na+) and hydroxyl ions (OH-) when placed in water, sodium hydroxide (NaOH), which is a strong base, is now liberated and dissolves in water.

c

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Briefly explain how you would name an organic compound containing each of the functional groups.

Answers

Functional groups include hydroxyl, methyl, carbonyl, carboxyl, amino, phosphate, and sulfhydryl.

Functional groups:

Regardless of the other atoms in a molecule, functional groups are particular groupings of atoms within molecules that have their own distinctive capabilities.

The prefixes di, tri, and tetra are applied when there are several substituents. Function-specific groups contain identifying suffixes. For instance, the parent chain name of alcohols has the suffix "ol" and a number indicating the location of the hydroxyl group. One is used to identify ketones.

If a compound has multiple functional groups, the highest priority functional group will be considered the "parent structure" and will define the "parent name"; the remaining functional groups will be considered the "substituents." The name of the parent structure is denoted by the "suffix," and the substituent is denoted by the "prefix."

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Oxidizing acids, such as nitric acid, can explode when mixed with what type of incompatible chemical? air water organic chemicals or materials compressed gases

Answers

Oxidizing acids, such as nitric acid, can explode when mixed with what type of incompatible chemicals like alcohol, or charcoal.

An oxidizing acid is a Brønsted acid that is a strong oxidizing agent. most Brønsted acids can act as oxidizing agents because the acidic proton can be reduced to hydrogen gas. a few acids include other structures that act as stronger oxidizing agents than hydrogen ions.

Oxidizing acids include concentrated perchloric acid, nitric acid, iodic acid, chromic acid, and the glass cleansing mixture of chromium trioxide and sulfuric acid.

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4. A 0.51 kg solution contains 87 mg of potassium iodide. Calculate the W/W concentration
of this solution.

Answers

Taking into account the definition of percentage composition, the percent composition of potassium iodide in this sample is 0.017%.

Definition of percent composition

The Percentage Composition is a measure of the amount of mass that an element occupies in a compound and indicates the percentage by mass of each element that is part of a compound.

To calculate the percentage of composition, it is necessary to know the mass of the element in a known mass of the compound.

Percentage Composition in this case

In this case, you know that a 0.51 kg (or 510000 mg, being 1 kg= 1000000 mg) solution contains 87 mg of potassium iodide.

Dividing the mass amount of potassium iodide present in the compound by the mass of the sample and multiplying it by 100 to obtain a percentage value, the percentage composition of potassium iodide is obtained:

[tex]percentage composition of potassium iodide=\frac{87 mg}{510000 mg} x100[/tex]

percentage composition of potassium iodide= 0.017%

Finally, the percent composition of potassium iodide in this sample is 0.017%.

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A teacher divides her class into four groups. She assigns
each group the task of measuring the temperature of a
given object three times. The teacher already knows that
the temperature of the object is 31°C.
Based on each group's results, which group makes the most precise
measurements of the object's temperature?
A. Group A: 31.0°C, 32.0°C, 30.0°C
B. Group B: 29.5°C, 33.0°C, 31.8°C
C. Group C: 32.1°C, 31.9°C, 31.8°C
D. Group D: 29.0°C, 35.0°C, 32.0°C

Answers

The group that makes the most precise measurements of the object's temperature is Group C : 32.1°C, 31.9°C, 31.8°C. That is option C.

What is a precise measurement?

Precise measurement are those values that are gotten during a measurement which when compared are closest to the given constant value.

Precision refers to a value in decimal numbers after the whole number, and it does not relate with accuracy.

From the measurement gotten from the different groups, the results that are precise are the results of group C.

This is so because,

32.1-31 = 1.1

31.9-31 = 0.9

31.8- 31 = 0.8

All the values gotten are in decimals as stated above. Therefore, the group that makes the most precise measurements of the object's temperature is Group C.

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Determine the number of moles in 50.0 grams of sodium. (the mass of one mole of sodium is 22.99 g.)

Answers

Answer:

2.17 moles

Explanation:

50 gm / 22.99 g / mole = 2.17 moles

Answer:

2.17

Explanation:

There are exactly 1000 m in 1 km. how many significant figures does this number have?

Answers

Answer:

There is 1 significant figure

Explanation:

In the number 1000, 1 is the only number that counts as a significant figure since the zeros are not in between two non-zero numbers, and there isn't a decimal place either.

The graph below shows how the pH of the soil in
a farmer's field changed over a period of time.
At which point, A, B, C or D, did the farmer apply
lime to the field?

Answers

Answer:

Point B

Explanation:

From 0 - 7 on the pH scale, substances are said to be acidic. At 7, the substance is said to be neutral. From 7 - 14, substances are basic.

Lime is a basic substance. Therefore, when it is added to the soil, one should expect that the soil becomes more basic. On the graph, this should be represented by the line increasing in pH. As such, the point at which lime was added was most likely Point B.

Which best describes the oxidizing agent in this reaction?
Cl2(aq) + 2Br–(aq) Right arrow. 2Cl–(aq) + Br2(aq)
Bromine (Br) is the oxidizing agent because it gains an electron.
Bromine (Br) is the oxidizing agent because it loses an electron.
Chlorine (Cl) is the oxidizing agent because it gains an electron.
Chlorine (Cl) is the oxidizing agent because it loses an electron.

Answers

For the reaction Cl₂(aq) + 2 Br⁻(aq) ⇒ 2Cl⁻(aq) + Br₂(aq), Chlorine (Cl) is the oxidizing agent because it gains an electron.

What is the oxidizing agent?

In a redox reaction, the oxidizing agent is the one that gains electrons, causing the other element to oxidize.

Let's consider the following redox reaction.

Cl₂(aq) + 2 Br⁻(aq) ⇒ 2Cl⁻(aq) + Br₂(aq)

The corresponding half-reactions are:

Reduction: 2 e- + Cl₂(aq) ⇒ 2Cl⁻(aq)

Oxidation: 2 Br⁻(aq) ⇒ Br₂(aq) + 2 e-

Which best describes the oxidizing agent in this reaction?

Bromine (Br) is the oxidizing agent because it gains an electron. NO. Br is the reducing agent.Bromine (Br) is the oxidizing agent because it loses an electron. NO. Br is the reducing agent.Chlorine (Cl) is the oxidizing agent because it gains an electron. YES.Chlorine (Cl) is the oxidizing agent because it loses an electron. NO. Cl gains electrons.

For the reaction Cl₂(aq) + 2 Br⁻(aq) ⇒ 2Cl⁻(aq) + Br₂(aq), Chlorine (Cl) is the oxidizing agent because it gains an electron.

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Answer:

C: Chlorine (Cl) is the oxidizing agent because it gains an electron.

Explanation:

1. Explain why halogens are rarely found in native state?​

Answers

Halogens are rarely found in native state because halogens are highly reactive.  

What is Halogens ?

The group 17 elements are known as Halogen group. These elements include Fluorine, Chlorine, Bromine, Iodine and Astatine. Halogens react with metals to form salts. Halogens are non metals. Halogens are highly reactive and halogens are never found in pure form. Halogens not occur in free state.

How many valence electron are present in Halogens ?

Halogens have seven valence electrons in the outermost shell. The electronic configuration of Halogen is ns² np⁵.

Thus from the above conclusion we can say that Halogens are rarely found in native state because halogens are highly reactive.

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Assume there is an equal mass of each gas at a given temperature and pressure. Arrange the following gases based on the amount of volume they occupy, from the largest to the smallest volume.

Answers

At a given temperature and pressure, the arrangement of gases based on the amount of volume they occupy, from the largest to the smallest volume is CH[tex]_{4}[/tex] < NH[tex]_{3}[/tex] < Ar < SO₂ < Cl₂ .

According to Avogadro's law, all gases with an identical volume and the same temperature and pressure have an equal number of molecules.

If the temperature and pressure are constant, the volume and amount (in moles) of an ideal gas for a given mass are directly proportional.

The volume of gas ∝ No. of moles of gas

It means that the more the no. of moles of gas, the greater will be the volume of gas.

Now, No. of moles = Given mass/ Molar mass

Given,

There is an equal mass of each gas at a given temperature and pressure.

So,

No. of moles is inversely proportional to the Molar mass of the gas.

Therefore we can conclude that the less the molar mass of gas, the more will be the no. of moles and the higher will be the volume of that gas.

The gas with the least molar mass will occupy the highest volume.

The molar mass of [tex]CH_{4}[/tex] = 16g/mol

The molar mass of [tex]NH_{3}[/tex] = 17g/mol

The molar mass of [tex]Cl_{2}[/tex] = 70g/mol

The molar mass of Ar = 40g/mol

The molar mass of [tex]SO_{2}[/tex] = 64g/mol

Arrangement of gases on basis of molar mass

Cl₂ < SO₂ < Ar < [tex]NH_{3}[/tex] < [tex]CH_{4}[/tex]

So Arrangement on basis of decreasing volume

[tex]CH_{4} < NH_{3} < Ar < SO_{2} < Cl_{2}[/tex]

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Since volume and temperature are constant, this means that pressure and_____are____proportional. the sample with the largest____will have the_____pressure.

Answers

Since volume and temperature are constant, this means that pressure and number of moles are directly proportional. the sample with the largest number of moles will have the high pressure.

Since, the ideal gas equation is also called ideal gas law. So,  according to ideal gas equations,

PV = nRT

P is pressure of the sampleT is temperatureV is volume n is the number of  molesR is universal gas constant

At constant volume and temperature the equation become ,

P ∝ nR

since, R is also constant. So, conclusion of the final equation is

P  ∝ n

The number of moles and pressure of the sample is directly proportion. So, on increasing number of moles in the sample , pressure of the sample also increases.

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You have a 150mL sample of an aqueous solution at 25C. It contains 15.2mg of an unknown nonelectrolyte compound. If the solution has an osmotic pressure of 8.44 torr, what is the molar mass of the compound

Answers

The molar mass of the compound:

If the solution has an osmotic pressure of 8.44 torr, then the molar mass of the unknown non-electrolyte is 223.14 g.

What is osmosis?

Osmosis is defined as the flow of solvent molecules through semi-permeable membrane.Osmotic pressure is the pressure applied to stop the flow of solvent molecules.It is a colligative property that means osmotic pressure depends on the number of solute particles .

Therefore,

π[tex]V=inRT[/tex]  ( for electrolytes)

Where,   π= Osmotic pressure

i = Van 't Hoff factor

n= moles

R= Gaseous constant = 62.363577 L torr [tex]mol^{-1}K^{-1}[/tex]

T= Temperature

V= Volume of solution

Given:

T= 298K

V= 150 mL= 0.150 L

Given mass of unknown electrolyte= 15.2 mg = 15.2 x  [tex]10^{-3}[/tex] g

Osmotic pressure= 8.44 torr

Molar mass= ?

For non-electrolytes:

πV = n RT

πV=[tex]\frac{m}{M}[/tex]RT

Calculations:

Putting the given values in the formula:

8.44 x 0.150 =15.2 x [tex]10^{-3}[/tex]/ M x 62.36 x 298

1.266 = 282.5/M

M = 282.5/1.266

M = 223.14 g

Therefore,

The molar mass of the unknown non-electrolyte is 223.14g.

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What product is used in a pedicure bath to cleanse and soften the skin? a foot masque a foot soak massage oil cuticle remover submitnext

Answers

The product which is used in a pedicure bath to cleanse and soften the skin is foot soak

What is skin pedicure?

Skin pedicure is a special and cosmetic treatment of the body's skin including the feet and toenails, analogous to a manicure.

So therefore, the product which is used in a pedicure bath to cleanse and soften the skin is foot soak

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Vanillin the flavoring agent in vanilla has a mass percent composition of 63.15 per h ,31.55per o. determine the empirical formula and molecular formula if molecular mass of vanillin is 152.15 g/mol

Answers

Empirical formula and Molecular formula:

Vanillin has the empirical formula C₈H₈O₃ and the molecular formula  C₈H₈O₃, they both are same.

What is Vanillin?

Vanillin has the chemical formula C₈H₈O₃ and is classified as an organic compound. It is an aldehyde that is phenolic. Ether, hydroxyl, and aldehyde are some of their functional groups. It is the key ingredient in vanilla bean extract.

C, H, and O are present in this compound,

Mass percent composition = Divide by their atomic mass

C = 63.15/12.0107 = 5.2578

H = 5.30/1.0079 = 5.2582

O = 31.55/16 = 1.9719  

Thus, the ratio of

carbon         :   hydrogen        :  oxygen

5.257811784 : 5.258249499 : 1.97199825

division of all numbers by the smallest we get,

2.666235523 : 2.666457488 : 1

further dividing it by 3 we get,

7.998706568 : 7.999372463 : 3

thus the ratio becomes 8:8:3

Therefore, the empirical formula is C₈H₈O₃

Empirical formula mass = (12x8) + (1x8) + (16x3)

                                       = 96 + 8 + 48

                                       = 152

n = Molecular mass of Vanillin/ Empirical formula mass

  = 152.15/152

  = 1.0009  

Since the n-value is near to 1 thus the molecular formula will also be the same.

Therefore the molecular formula = C₈H₈O₃

Note: Your question is incomplete, but most probably your full question was Vanillin the flavoring agent in vanilla has a mass percent composition of 63.15 per h ,31.55per o and 5.30%H. determine the empirical formula and molecular formula if molecular mass of vanillin is 152.15 g/mol

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Ethene is exposed to h2 in a solution containing a chunk of solid palladium. if it reacts successfully, the original alkene will:________

Answers

If ethene and hydrogen reacts successfully in a solution containing a chunk of solid palladium, the original alkene will become unsaturated.

What is hydrogenation?

The term hydrogenation is used in chemistry to describe that addition of hydrogen to an unsaturated compound. Recall that ethene is an un saturated compound (alkene) and one of the reactions that an unsaturated compound can undergo is the addition of atoms or group across the double bond to yield adducts.

In this case, the adduct is a compound that is saturated ad will not have the same properties as ethene because the carbon carbon double bond that was characteristic of ethene has been replaced by a carbon carbon single bond.

Thus,  if ethene and hydrogen reacts successfully in a solution containing a chunk of solid palladium, the original alkene will become unsaturated.

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A measure of peak separation in a chromatographic method that equals the difference in retention time for two components divided by the average of their peak widths is the definition of

Answers

A measure of peak separation in a chromatographic method that equals the difference in retention time for two components divided by the average of their peak widths is the definition of resolution.

Retention time can be referred to as the amount of time a solute spends in the stationary and mobile phases of a column.

The analyte's interaction with the stationary phase determines the longer retention period.

The duration of retention will increase as the interaction becomes more strong.

Resolution is defined as the peak separation in a chromatographic procedure that is equal to the difference in retention time for two components divided by the average of their peak widths.

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Find the amount accumulated afterinvesting a principle P for t years at aninterest rate compounded k times per year.P = $40,500 r = 3.8% t = 20 k = 12Hint: A = P(1 + )ktA = $[?] Nurse Betty thanks you for telling her what happened. She calls a code because as she is assessing the patient, his face droops again and he is not moving his right side. Your next action is to...a.) go to lunch since you no longer need to transport the patientb.) take the opportunity to check your text messages and wait for someone to tell you what to doc.) noned.) wait at the patients bedside or right outside the door for the team to show up so you can explain what happened to the whole team Which of the following situations would cause light to refract?A. Moving through the airB. Moving from air to waterC. Passing from one glass block to anotherD. Traveling through a vacuum if+the+real+return+on+us+treasury+bills+is+14%+while+the+rate+of+expected+inflation+is+anticipated+to+be+8%,+then+what+should+nominal+rate+of+return+be? At a universit y faculty meeting, a proposal was made to increase the housing benefits for new faculty to keep pace with the high cost of housing. In the long run, this increase in health care benefits will have no effect on the attractiveness of faculty positions compared to other jobs. (Hint: Consider how the indifference principle applies to this occupation in the long run. )a. True b. False Give a big-O estimate for the number of operations (where an operation is an addition or a multiplication) used in this segment of an algorithm. t=0 for i:=1 to 3 for j :=1 to 4 1 :=1 tij A O(1) B. O(n) C. O(n log n) D. On) I a solution with a ph of 9.100 is prepared using aqueous ammonia and solid ammonium chloride. what is the ratio of [nh3] to [nh4 ] in the solution? the kb of ammonia is 1.76 105. when planning care for a patient with esophageal varices, which action would be a priority for the nurse? assessing for signs and symptoms of hemorrhage teaching the patient signs of bleeding to report discussing the importance of alcoholics anonymous meetings encouraging rest periods to reduce fatigue review the differences between archaea and bacteria Consider a simple computer system with an L1 cache. Initially we map the logical addresses directly to the physical addresses, that is the logical address is always the same as physical address, and there is no virtual memory.L1 cache access time: 2 nsL1 cache hit ratio: 97%Main Memory access time: 30 nsi.) Compute the effective memory access time assuming the parameters above; give the main steps of your derivation in a few lines.ii.) Then, assume we add virtual memory with 2-level hierarchical paging. All page tables are always in the main memory. The system doesnt have a TLB. Compute effective memory access time assuming:Page fault overhead: 100 msPage fault rate: 0.0005Give the main steps of your derivation.Assume that the page fault overhead includes the final memory access time as well as the time needed to access and update the page tables/L1 cache, in addition to disk transfer time. the three party slogans on the side of the building are paradoxes. explain why. Find the indicated partial derivative. f(x, y, z) = e^xyz^7; f_xyz f_xyz(x, y, z) = "Hormones secreted into the hypophyseal portal system are delivered directly to the ________.A. neurohypophysisB. adenohypophysisC. median eminenceD. infundibulum" Let F(x) = e^-5t4 dt. Find the MacLaurin polynomial of degree 5 for F(x). a neuronal circuit that concentrates or directs a large number of incoming impulses to a rather small number of neurons is called a(n): a. converging circuit. b. diverging circuit. c. parallel circuit. d. oscillating circuit. explain how to find the change of basis matrix pcb Categorize fossil record evidence based on whether it indicates the occurrence of a dispersal event or a vicariance event. 1. Ancestral lemur fossils are found in eastern Africa, and present day lemurs are found only on Madagascar.2. Elephant bird fossils are found only on Madagascar. 3. Similar plant fossils appear on either side of the Grand Canyon. 4. The separation of Gondwana from Laurasia resulted in the speciation of modern-day parrots. what is the final pressure of a system ( atm ) that has the volume increased from 0.75 l to 2.4 l with an initial pressure of 1.25 atm ? the mississippi river is a good example of what channel type?A. Curving B. Meandering C. Straight D. Braided Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand is $50.00. Her best guess is that she can sell 300 cups per week at $0.50 per cup. The variable cost of producing a cup of lemonade is $0.20.a. Given her other assumptions, what level of sales volume will enable Julie to break even?b. Given her other assumptions, discuss how a change in sales volume affects profit.c. Given her other assumptions, discuss how a change in sales volume and variable cost jointly affect profit.d. Use excels Formula Auditing tools to show which cells in your spreadsheet affect profit directly.