What do we use a meter stick to measure?

Answers

Answer 1

A meterstick is used to measure things in meters and centimeters.

Meterstick is the measurement tool that measures one meter (hundred centimeters) and is used to measure the things in meters and centimeters. Metersticks are often rectangular and tin, and it is made up of wood or metal. Metal ones are often backed with a 'grippy' material such as cork, to improve the friction. Metersticks are usually divided within the lines for each millimeter (1000 per meter) and the numerical markings as per centimeter (100 per meter), with the numbers either in centi- or millimeter. It is a large ruler used for measuring the size or the distance using the metric scale.

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Related Questions

A vitamin contains 9.2 x 10^23 iron atoms. How many moles of iron are in the tablet?

Answers

Answer:

Approx. 20 moles of iron.

Explanation:

There are approx.

6.022

×

10

23

iron atoms per mole of ion. This quantity, this number of iron atoms has a mass of

55.85⋅g . And of course, when we quote the mass of iron we say

55.85⋅g⋅mol−1 .

. The reaction rates of many spontaneous reactions are actually very slow. Which of these statements is the best explanation for this observation? (1) The activation energy of the reaction is large. (2) AG for the reaction is positive. (3) Such reactions are endothermic. (4) The entropy change is negative.

Answers

In reality, spontaneous reactions occur relatively slowly because The reaction's activation energy is high.

Hence, Option 1 is correct.

A spontaneous reaction is one that favors the creation of products in the environment in which it is taking place.Given that spontaneous reactions discharge free energy, the sign of G must be negative. There are four distinct conceivable combinations because both H and S can be either positive or negative depending on the features of the specific reaction.An exothermic example of a spontaneous reaction is a raging campfire (there is a decrease in the energy of the system as energy is released to the surroundings as heat).

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Calculate the percentage composition (by mass) of oxygen in K2SO4.

36.72 %

18.35 %

9.18 %

23.66 %

76.34 %​

Answers

Answer:

it's option no A as described in the image

The normal boiling point for acetone is 56.5°C. At an elevation of 5300 ft the atmospheric pressure is 630. torr. What would be the boiling point of acetone (ΔHvap 32.0 kJ/mol) at this elevation? What would be the vapor pressure of acetone at 22.0°C at this elevation?

Answers

The normal boiling point for acetone is 56.5°C. At an elevation of 5300 ft the atmospheric pressure is 630. torr. The vapor pressure of acetone at 22.0°C at this elevation is 212.22 torr.

What is vapor pressure ?

The equilibrium pressure of a vapour above its liquid (or solid), or the pressure of the vapour produced by the evaporation of a liquid (or solid) above a sample of the liquid (or solid) in a closed container, is the vapour pressure of a liquid. Substance; vapour pressure at 25 °C, as examples.

In Step 1:

The normal boiling point for acetone = 56.5°C.

At an elevation of 5300 ft the atmospheric pressure = 630 torr

ΔHvap = 32.0 kJ/mol

The temperature is 24.0 °C

In Step 2:

ln(p1/p2) = (∆ H/R) (1/T2 - 1/T1)

Normal atmospheric pressure

= 1 atm

= 760 torr

So, (760/630) = ((32.000 J/mol) / (8.314 J/K*mol)) (1/T2 - 1/329.65 K).

T2 = 324.4 K = 51.25 °C.  

This is the boiling point of acetone at 5300 ft.

The vapor pressure = atmospheric pressure at the boiling point for any liquid.

ln (Pv/630atm) = ((32.000 J/mol) / (8.314 J/K*mol)) (1/324.4 K - 1/297.15)

ln (Pv/630) = -13615388.3

Pv = 212.22 torr

Thus, The vapor pressure of acetone at 22.0°C at this elevation is 212.22 torr.

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Provided below are pictures of three different scnearios in which two different chemicals are mixed together. for each scenario, make a claim about whether or not a chemical reaction is occuring. Provide evidence and reasoning to support your claim. If a reaction cannot be determined based on the provided picture, explain why not and how you could determine if a reaction has occured. Use specific examples in your explanation.

Answers

Looking at the images that we have, we can see that there is a reaction in the images A and C.

What is a reaction?

We would need to settle in our minds what is implied when we talk about a chemical reaction. You have to know that if we are talking about a chemical reaction then we are talking about the kiondfs of reaction that would lead to the following observations;

1) There is a change in the temperature of the system

2) There is an effervescence of gas in the system

3) There is a change in color

4) There is the appearance of a solid in the system

We would now have to look at all the setups that we have here and we have to look at it in such a way that we could know if there is a reaction that is going on in any of them as shown.

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The Ksp of SrSO4 is 3. 2 x 10^-7. What is the equilibrium concentration of a sulfate ion in a 1. 0 Dash L solution of strontium sulfate which 0. 10 mol of Sr(CH3CO2)2 has been added?

Answers

The equilibrium concentration of a sulfate ion is 32× 10⁻⁶M can be added in a 1. 0 Dash L solution of strontium sulfate which is 0. 10 mol of Sr(CH3CO₂)₂.

Solubility is defined as the maximum amount of a solute that can be dissolved in a known quantity of the solvent at a certain temperature is its solubility.

The solubility of SrSO₄ is:

SrSO₄(s) → Sr²⁺(aq) + SO₄²⁻(aq)

Where Ksp is defined as:

Ksp = 3.2x10⁻⁷ = [Sr²⁺] [SO₄²⁻]

The concentration of Sr is:

0.10mol / 1L = 0.10M = [Sr²⁺]

Replacing in Ksp:

3.2x10⁻⁷ = [0.10M] [SO₄²⁻]

[SO₄²⁻] = 3.2x10⁻⁶M

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A ample of helium wa compreed at 35 °C from a volume of 0. 5 L to 0. 25 L where the preure i 500 mmHg. What wa the original preure?

Answers

The original pressure was 1000 mmHg.

What is pressure?

Pressure is a force applied to a surface or object over a given area. Pressure can be generated in a variety of ways, including through mechanical force, electrical force, or through changes in temperature or chemical reactions. Pressure can be measured using a variety of devices, including a barometer, manometer, or gauge. Pressure is an important concept in many fields such as physics, engineering, chemistry, and medicine. It can be used to measure the force of a liquid or gas, the pressure of a liquid or gas, or the pressure at a certain depth in the ocean.

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The first substance is nitric acid, HNO3. Since this substance dissolves to generate an acidic solution, the bond between O and H in the structural formula NO2OH breaks when the substance dissolves, making it an oxyacid. The latter substance, Ni(OH)2, is apparently insoluble in neutral water, but will dissolve if the solution is acidic. This behavior is typical of substances that feature basic anions. The bond between Ni and O is the one that breaks when Ni(OH)2 dissolves. The hydroxide ion that is produced quickly reacts with protons in solution and cannot react again with Ni2 to form a precipitate.

Answers

Ni(OH)₂ is base but this is not strong base this is very weak base and this cannot gives OH⁻ after dissolving in H₂​​​O . this is only dissolve in acidic solution.

Define acidic solution.

A solution is said to be acidic if it contains more positively charged hydrogen ions (H⁺) than negatively charged hydroxide ions (OH⁻). Lemon juice and vinegar are typical examples of acids. The amount of OH ions is greater in bases. Baking soda and regular ammonia are common examples.

Acidic substances can typically be distinguished by their sour flavor. A basic definition of an acid is a molecule that can donate an H⁺ ion and can continue to be energetically favorable even after losing H⁺. Blue litmus paper has a reputation for turning red when exposed to acids. Bases, on the other hand, are distinguished by their bitter flavor and slick consistency.

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How does oxygen affect orcas?

Answers

The orcas will compensate the lack of the oxygen that being respired for the minute at time and with the high amount of the hemoglobin in the blood.

The orcas will be able to slow down their heart beat when they are diving . this will decrease the amount of the oxygen demand but this not good for them it will be very stressful on their body.

The hemoglobin will increase the efficiency of their respiration.  The orcas are the sea mammals . the orcas will be dive for the long period of the time in to the water. They will easily breathe through blowhole.

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nitric acid, hno3, is classified as a strong acid in water. this means that it produces

Answers

nitric acid (HNO3) is classified as a strong acid in water, which means that it dissociates completely in water to produce hydrogen ions (H+) and nitrate ions (NO3-).

This is in contrast to weak acids, which only partially dissociate in water. Strong acids have a very low pH (typically less than 1) and are highly corrosive, making them useful for many industrial applications such as making fertilizers, explosives, and dyes. However, they can also be dangerous and must be handled with care. A strong acid is an acid that fully dissociates or ionizes in water, meaning it releases all of its hydrogen ions (H+) into solution. This makes the acid highly acidic and gives it a low pH (typically less than 1). Some examples of strong acids include hydrochloric acid (HCl), sulfuric acid (H2SO4), nitric acid (HNO3), and perchloric acid (HClO4). Strong acids are highly reactive and can cause chemical burns and other damage if not handled properly. \

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Calculate ΔS∘ for Ti(s)+2Cl2(g)→TiCl4(g)
Express your answer using four significant figures.

Answers

ΔS∘ for Ti(s)+2Cl2(g)→TiCl4(g) is 659.6J/mol.. It is important to note that, as a general rule, a positive ΔS° indicates an increase in disorder and a negative ΔS° indicates a decrease in disorder.

The change in entropy (ΔS) for a chemical reaction can be calculated using the standard entropies (S°) of the reactants and products.

ΔS° = S°(products) - S°(reactants). For the reaction Ti(s) + 2Cl2(g) → TiCl4(g)S° of Ti(s) = 29.1 J/mol·K, S° of Cl2(g) = 223.1 J/mol·K, S° of TiCl4(g) = 167.4 J/mol·K. Therefore, ΔS° = (S°(TiCl4) + 2S°(Cl2)) - S°(Ti)ΔS° = (167.4 + 2*223.1) - 29.1 = 659.6 J/mol·K. So the ΔS∘ for Ti(s) + 2Cl2(g) → TiCl4(g) is 659.6 J/mol·K with four significant figures. It is important to note that, as a general rule, a positive ΔS° indicates an increase in disorder and a negative ΔS° indicates a decrease in disorder. So in this case, the process of going from solid titanium and gaseous chlorine to gaseous titanium tetrachloride increases disorder, which is consistent with a positive ΔS°.

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3) Which of the following is a true statement?
A: Ice cannot float on water.
B: Carbon is a part of the compound of water.
C: Water is a universal solvent.
D: Hard water is good for making soap lather.
PLS HELP ME PLS

Answers

Water is called a ‘universal solvent' because water can dissolve much more substances than any other liquid found in nature but water cannot dissolve every substance.

Is water called universal solvent?

Water is referred to as a "universal solvent" because it has a considerably wider range of natural solvent properties than any other liquid. However, water is not capable of dissolving all compounds.

For instance, water cannot dissolve hydroxides, fats, or waxes because oppositely charged particles are not very soluble in water. Hydrogen and oxygen atoms are arranged polarly in water molecules.

The oxygen atom has a negative charge, while the hydrogen atom on one side has a positive charge.The water molecule can more easily attach to various compounds thanks to these charges.

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Because it can dissolve a greater variety of chemicals than any other natural liquid, water is referred to as a "universal solvent," though it does not dissolve all substances. The option  C is true.

The term "universal solvent" refers to water.

In comparison to other liquids, water has a much larger spectrum of natural solvent qualities, earning it the moniker "universal solvent". Nevertheless, not all substances can be dissolved by water.

Because water is not highly soluble in oppositely charged particles, it cannot dissolve hydroxides, fats, or waxes, for example. Water molecules have polar arrangements of the hydrogen and oxygen atoms.

In contrast to the hydrogen atom on one side, which has a positive charge, the oxygen atom has a negative charge.

These charges allow the water molecule to more readily bind to different substances.

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Methanol (methyl alcohol or wood alcohol) is a potential automotive fuel, either in pure form or mixed with gasoline. Some fleet vehicles, such as municipal buses, have been modified to burn methanol-containing fuels. These fuels are also used by some race cars. A particular automobile modified to use a mixture of 85.0% methanol and 15.0% gasoline by mass gets 25.5 mi/gal. The fuel has a density of 0.775 g/mL. How many kilograms of methanol does the automobile consume in a trip of 808 km

Answers

Answer:

it’s 4

Explanation:

Select True or False: The rates of radioactive decay processes, like the rates of chemical reactions, are sensitive to temperature changes.

Answers

Answer: False

Explanation:

Determine the number of atoms of each element in the following: 3Ca(SO4 )

Answers

Answer:

3 Ca

3 S

12 O

Explanation:

You have 3 moles of Ca(SO4)

Therefore you multiply the subscript of each atom of the compound by 3.

Ca and S have a understood subscript of 1 so there are three of each.

There are 4 oxygen atoms in one mole of CaSO4 so in 3 moles there would be 4*3 so 12

What are true about water changing states?

Answers

Answer:

The last one is true.

Which of the following elements will form positive ions Na N Cu Br

Answers

Answer:

Na, Cu, and Br will form positive ions

Explanation:

Na, Cu, and Br have more protons than electrons, so they will form positive ions.

Na, Cu, and Br are all elements that have an atomic number greater than their number of electrons. This means that they have more protons than electrons, so they will form positive ions when they react with other elements. Na will form Na+, Cu will form Cu+ and Br will form Br+.

BRAINLIEST!!HELP PLEASEEEE2. Use the following chemical equation to answer the question.

4K(s) + O2(g) → 2 K20 (s)

If a staff member at a laboratory has 12. 0 grams of potassium metal, what is the

theoretical yield of potassium oxide (K2O) that the scientist could potentially

produce from the reaction with oxygen gas?

Answers

If a laboratory employee has 12.0 grammes of potassium metal, the theoretical yield of potassium oxide that even the scientist may theoretically make from the reaction with oxygen gas is 14.5 gram of K2O.

In chemistry, yield, also known as reaction yield, is a measurement of the number of moles of a product created in ratio to the reactant consumed in a chemical reaction, generally represented as a percentage. Before performing chemical reactions, it is necessary to know how many product will be produced with certain reactant quantities. This is referring to the theoretical yield.

This approach is useful for calculating the theoretical yield of such a chemical process. The yield of a reaction represents how much product is generated by that reaction. The theoretical yield is the amount of product predicted by stoichiometry, whereas the actual yield is the amount produced.

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How many moles are in 50 grams?

Answers

3.125 moles of oxygen are present in 50 g.

A mole is the volume of a substance that contains 6.022 X 1023 of the substance's particles, atoms, ions, molecules, etc. A mole is a unit for counting molecules, ions, or atoms. Divide the given mass of an element by its molar mass to find the number of moles in that quantity.

The atomic weight of an element, or its relative atomic mass, on the periodic table, expressed in g/mol, is its molecular mass.

The molar mass of oxygen is 16 g/mol, and there are 3.125 moles in a given amount of mass and molar mass.

Consequently, 3.125 moles of oxygen are present in 50 g.

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Select the correct answer. the zeroth law of thermodynamics describes the state where we can say what about the movement of heat between two substances?
a. the latent heat is increasing
b. the movement of heat is rapid
c. there is no movement of heat
d. the latent heat is decreasing
e. the movement of heat is slow

Answers

The zeroth law of thermodynamics describes the state where we can say what about the movement of heat between two substances

The Zeroth Law of thermodynamics is a basic law that describes the state in which two bodies are in thermal equilibrium. It states that if two bodies are in thermal equilibrium with a third body, then they are in thermal equilibrium with each other. In other words, it allows us to determine if two bodies are at the same temperature and if there is no heat flow between them. So, it describes the state where there is no movement of heat between two substances.

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name a solid that when burnt colourless gases are formed.One gas is strongly acidic while the other is slightly basic​

Answers

SULFUR

Sulfur is a solid that when burnt produces two colourless gases: sulfur dioxide (SO2) and sulfur trioxide (SO3). The gas SO2 is strongly acidic, while the gas SO3 is slightly basic. When SO3 is dissolved in water, it forms a solution called sulfuric acid, which is a strong acid. SO2 is also a corrosive gas that can be harmful to humans and the environment. It is often produced as a byproduct of industrial processes, such as the burning of fossil fuels and the production of sulfuric acid.

Hope This Helps You!

What numbers do I put on the right side?

Answers

The leftovers of [tex]C_2H_2[/tex] will be 6 moles while the leftover of [tex]O_2[/tex] will be zero.

Mole ratio of reactants

In the originally balanced equation of the reaction, 2 moles of [tex]C_2H_2[/tex] and 5 moles of [tex]O_2[/tex] react completely to produce 4 moles of [tex]CO_2[/tex] and 2 moles of [tex]H_2O[/tex]. This equation is balanced with no reactant left.

Now, 8 moles of [tex]C_2H_2[/tex] were made to react with 5 moles of [tex]O_2[/tex] in the second reaction. The mole ratio of the two reactants for complete reactions is 2:5. Thus, [tex]C_2H_2[/tex] has been supplied in excess.

Since only 5 moles of [tex]O_2[/tex] is available, only 2 moles of [tex]C_2H_2[/tex] will be consumed. Thus, 6 moles of [tex]C_2H_2[/tex] will be left while the oxygen will be completely consumed. That is, the amount of [tex]O_2[/tex] left would be zero.

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A 16. 81 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 21. 33 grams of CO2 and 5. 822 grams of H2O are produced. In a separate experiment, the molar mass is found to be 104. 1 g/mol. Determine the empirical formula and the molecular formula of the organic compound

Answers

A 16. 81 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 21. 33 grams of CO₂ and 5. 822 grams of H₂O are produced. In a separate experiment, the molar mass is found to be 104. 1 g/mol.  The empirical formula is CH₃   and molecular formula is C₇H₇O₂₁

The empirical formula can be calculate as follows:

The reaction can be write

CxHyOz  → CO₂ + H₂O

As a result, we may state that there are two O-atoms for every one C-atom (12g) in CO2 (32g).

This indicates that the ratio is 12g C/32g O.

The molar mass of CO₂ is 44 g/mole.

(12/44) x 33 = 9 g

There are 9 grams of carbon in every 33 grams of CO₂

The same can be done for water:

In H₂O, each element is represented by two H atoms and one O atom. 2 g H and 16 g O.

[2 g H / 18 g H2O] are present in 5. 822 g of water

(2/18)x 5.822= 0.6468 g

The initial sample had 14.16 g of sample, 9 g of C, and 0.6468 g of H, which resulted in 34.3532g of oxygen.

Determine the amount of moles.

C: 9.0 g / 12.0 g/mol = 0.75 mol

H: 0.6468 g / 1.0 g/mol = 0.6468 mol

O: 34.3532g / 16.0 g/mol =  2.14 mol

Then we divide by the smallest number

C: 0.75 mol / 0.6468 mol = 1

H: 0.6468 mol / 0.6468 mol= 1

O:  2.14 mol/ 0.6468 mol =  3

so the empirical formula will be CH₃

Determine the molecular formula

mass molecular formula / mass of empirical formula = n

We have to multiply the empirical formula by n to get the molecular formula.

104.1 /15 = 7= n

This means the  molecular formula = C₇H₇O₂₁

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The broad bands or regions located around the nucleus where the electrons are found are called energy rings.
True
False

Answers

It is false that the broad bands or regions located around the nucleus where the electrons are found are called energy rings.

The nucleus is the centre of an atom. Protons and neutrons are particles that make up the nucleus. Shells of electrons rotate around the nucleus. The atom is made up of a small nucleus surrounded by electrons that move. The nucleus includes protons, with a positive charge equivalent to the negative charge of an electron. Neutrons, which have almost the same mass but still no charge as protons, may also be found in the nucleus.

The nuclear powerful force extends long enough from each baryon to bind protons and neutrons together while repelling the repelling electrical force between positively charged protons. The nuclear force acting has a relatively narrow range and practically vanishes just beyond the nucleus's border.

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Draw the product (s) formed by heating the following compounds in basic ethanol.
EtOH
NaOEt

Answers

the product (s) formed by heating the following compounds in basic ethanol: EtOH and NaOEt is shown in the image.The reaction product is simpler because it is determined by the condition of the reagent and the catalyst or solvent.

there are many factors that determine the product as given. When alcoholic beverages (beer, wine, and spirits) are diluted, ethanol is present. It is used topically to prevent skin infections, in pharmaceutical preparations (such as rubbing compounds, lotions, tonics, and colognes), cosmetics, and perfumes. Ethanol, also referred to as ethyl alcohol, is a colourless, flammable liquid with a strong odour. It is the alcohol found in alcoholic beverages and employed as a solvent that is generated by fermentation. Alcohols are organic molecules made up of carbon, oxygen, and hydrogen atoms. When two carbons are present, the alcohol is referred to as ethanol (also known as ethyl alcohol).

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The air pressure from the atmosphere measures 0. 5atm at an altitude of 18,000 ft. How much pressure is this in pounds per square inch?

Answers

At an altitude of 18,000 feet, where the atmospheric pressure is 0.5 atm, the pressure is 7.5 pounds per square inch.

At sea level, what is the calculation?

One square inch of any surface has 15 pounds of air sitting on top of it at sea level. That same square inch is only under 7.5 pounds per square inch of pressure at 18,000 feet.

The atmospheric pressure rises with increasing altitude. Contrary to popular belief, the graph shows that pressure decreases as altitude rises (moving to the right on the graph).

At sea level, the atmospheric pressure is 14 pounds per square inch. If we assume that the altitude is zero, we can see that the pressure is equal to 14 pounds per square inch. The atmospheric pressure rises as the altitude gets closer to sea level.

We observe that the pressure value rises as the altitude gets closer to sea level. As the altitude rises, the atmospheric pressure approaches 14 pounds per square foot. Only when the elevation is 0 miles above sea level does the pressure equal 14 pounds per square inch.

The pressure will therefore be 7.5 pounds per square inch if the air pressure in the atmosphere measures at 18,000 feet or 0.5 atm.

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Show all the work and don't forget to show scientific notation!

Answers

In scientific notation, the result of multiplying an integer between 1 and 10 by a power of 10 is written.For instance, 650,000,000 can be represented as 6.5 108 in scientific notation.

Which four guidelines govern scientific notation?

Always set the base to 10. The exponent must be an integer that is non-zero, therefore it can either be positive or negative. The absolute value of the coefficient must be less than ten and more than one.

What sort of notation would that be?

a system of symbols for designating unique items. Example: In mathematics, the symbol "" stands for "infinity." There are many notations in mathematics.

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What is Ghez’s favorite star? Do you have a favorite star? Why or why not?

Answers

Andrea Ghez's favorite star is known as SO-2 and it is her favorite star because this star goes around the universe in a short period. I do not have a favorite star because I do not know a lot about stars.

Who is Andrea Ghez?

Andrea Ghez is female astrophysicst who was born in the United States known for being one of the few women in the world who have gotten the Nobel Prize in Physics. During her life, Andrea has studied the center of the universe, black holes and the stars. Moreover, she was known for giving a TED talk in whiich she explained about stars and black holes.

What is Andrea's favorite start?

In the TED talk given by Andrea Ghez she mentions her favorite star is the  SO-2 as "it goes around in only 15 years".

What is my favorite star?

I do not have a favorite star because I do not know a lot about stars, although I believe studying them is very interesting.

Note: This question is incomplete; here is the missin information:

TED Talk- Andrea Ghez

"Now, most astronomers have a favorite star, and mine today is a star that's labeled up there, SO-2. Absolutely my favorite star in the world. And that's because it goes around in only 15 years. And to give you a sense of how short that is, the sun takes 200 million years to go around the center of the galaxy"

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In a reaction between vinegar and antacid tablets, the antacid is the limiting reagent. At constant pressure and temperature, three tablets produce 600 cm³ of gas.

What volume will six tablets produce?

Answers

The volume of gas produced by six tablets would be twice the volume produced by three tablets, or 600 cm³ x 2 = 1200 cm³.

Definition of a gas's volume

Until they are enclosed in a container, gases lack a definite shape or volume. Gases can expand and contract as they are forced into various container sizes and shapes because of the way their molecules spread out and move randomly.

The volume of the container in which a gas is contained can be used to define the volume of the gas itself.

The volume of a gas reduces as the molecules are crammed closer together when it is compressed. A gas's volume rises when it expands.

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Answer:

1200 cm³.

Explanation:

A chemical supply company sells sulfuric acid (H2SO4) in a concentration of 4.00 M. What volume of this solution would you need to make 12.0 mL of a 0.50 M H2SO4 solution

Answers

you need 3.00 mL of the 4.00 M sulfuric acid solution to make 12.0 mL of a 0.50 M solution.

What is Solution?

Solution is a way to solve a problem or address an issue. It can involve finding an answer or coming up with a strategy to tackle a difficult situation. Solutions can be found through research, brainstorming, trial and error, or by using existing resources.

To solve this problem, we must use the equation:
V1C1 = V2C2
Where V1 is the volume of the concentrated solution, C1 is the concentration of the concentrated solution, V2 is the volume of the dilute solution, and C2 is the concentration of the dilute solution.
In this case, V1 is the volume of the 4.00 M solution that we need, C1 is 4.00 M, V2 is 12.0 mL, and C2 is 0.50 M.
Plugging these values into the equation, we can solve for V1:
V1 = (V2C2) / C1
V1 = (12.0 mL)(0.50 M) / (4.00 M)
V1 = 3.00 mL

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Which two lines in this excerpt from Song of Myself by Walt Whitman reflect a realist view of death?I bequeath myself to the dirt to grow from the grass I love, If you want me again look for me under your boot-soles. You will hardly know who I am or what I mean, But I shall be good health to you nevertheless, And filter and fibre your blood. How do you find the midpoint answer? have you received two years of full-time instruction in english during secondary school? A triangle has sides with lengths 8, 15, and 17. approximate the acute angles in this triangle to the nearest degree and list in ascending order What are the 3 factors that cause natural selection? Solve the system.6x - y = -15x+2y = 17Enter your answer as a coordinate pair in the blank. A nurse is helping a physician insert a subclavian central line. After the physician has gained access to the subclavian vein, he connects a 10-ml syringe to the catheter and withdraws a sample of blood. He then disconnects the syringe from the port. Suddenly, the client becomes confused, disoriented, and pale. The nurse suspects an air embolus. She should: Which of the following characteristics are associated with a large group disability income policy?a. No waiting periodsb. No medical underwritingc. No elimination periodsd. No limit of benefits 5 apples and 3 bananas cost $2.47. If you exchanged prices, it cost $3.13. What's the price for 6 apples and 6 bananas If lunch cost $15.70, before tip, and you left $3.14, what %tip did you leave and what was the total cost of lunch? Which of the following statements describes how the Punic Wars changed the social order in Rome? Romans could focus more on expanding into the Western Mediterranean. Many Romans became very wealthy and created large estates. Slavery ended in the Mediterranean region. Romans were forced to reorganize their government with an emperor as ruler. A mass of 0.343 kg moves down a 5 meter ramp in 5.8 seconds. What is its velocity and kinetic energy What do the words crowd and host signify in the poem daffodils? pleaseeeeeee someone help me asappp i need help so bad. Communication which occurs via a massemail would fall under which category?A. a synchronousC. horizontalB. verticalD. synchronous Haemotoxylin and eosin is a common staining technique used in microscopy. Which of the following are reasons why cells need to be stained prior to microscopy? [3 marks]- Kill cells- No cellular components are visible without staining- Highlight metabolic processes- Make all organelles homogeneous- Highlight different cellular structures- Differentiate between living and dead cells There are 18 counters divided equally among 3 groups. How many counters are in each group? How is conducting graduate-level research different from research you did in your undergraduate program? Provide specific examples who was sons of liberty Am I correct or no because I really don't know and I'm trying to pass this test so someone plssss help.