3. Calculate the mass of NH3 that can be produced from the reaction of 125 g of NCI:
according to the following equation:
NCl3 + 3 H2O → NH3 + 3 HOCI
The mass of NH₃ : = 17.629 g
Further explanation
A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.
Given
125 g NCl₃
Required
The mass of NH₃
Solution
mol NCl₃(molar mass : : 120.5 g/mol)
= 125 g : 120.5 g/mol
= 1.037
From the equation, mol ratio NCl₃ : NH₃ = 1 : 1, so mol NH₃ = 1.037
Mass NH₃(molar mass : 17 g/mol) :
= 1.037 x 17
= 17.629 g
The ground electron configuration of a Tc atom is (Kr) 5s2 4d5. What is the electron configuration of a Tc3 ion
Answer:
2:1 of Tc in the periodic table
How many orbitals are in Phosphorus
Calculate the volume in mL of 0.279 M Ca(OH)2 needed to neutralize 24.5 mL of 0.390 M H3PO4 in a titration.
Note: the answer should have 3 significant digits. Do not include the unit mL in the answer.
The volume of the 0.279 M Ca(OH)₂ solution required to neutralize 24.5 mL of 0.390 M H₃PO₄ is 51.4 mL
Balanced equation2H₃PO₄ + 3Ca(OH)₂ —> Ca₃(PO₄)₂ + 6H₂O
From the balanced equation above,
The mole ratio of the acid, H₃PO₄ (nA) = 2The mole ratio of the base, Ca(OH)₂ (nB) = 3How to determine the volume of Ca(OH)₂ Molarity of acid, H₃PO₄ (Ma) = 0.390 MVolume of acid, H₃PO₄ (Va) = 24.5 mLMolarity of base, Ca(OH)₂ (Mb) = 0.279 MVolume of base, Ca(OH)₂ (Vb) =?MaVa / MbVb = nA / nB
(0.39 × 24.5) / (0.279 × Vb) = 2/3
9.555 / (0.279 × Vb) = 2/3
Cross multiply
2 × 0.279 × Vb = 9.555 × 3
0.558 × Vb = 28.665
Divide both side by 0.558
Vb = 28.665 / 0.558
Vb = 51.4 mL
Thus, the volume of the Ca(OH)₂ solution needed is 51.4 mL
Learn more about titration:
https://brainly.com/question/14356286
The more solute is broken down in solution the less conductive the solutions is. True or False
Answer:
False.
Explanation:
If the answer to this question was true, then that would mean that the more the solute is broken down, the less it'll dissolve... and everyone know that this doesn't make sense. I hope I explained this is an easy manner so you could understand! Good luck! :)
The more solute is broken down in solution the more conductive the solutions is and the statement is False.
What effects the conductive nature of a solution?
Conductivity depends upon solvation of ions present in solution. Greater the solvation of ions, lesser is the conductivity.
Solvation is the process in which molecules of a solvent attract the particles of a solute.
The main forces in solvation are ion-dipole and hydrogen bonding attractions.
The more concentrated a solution is, the greater the conductivity measured (if the solute is a conductor in solution). This is because the higher the concentration of the solute, the more ions will be available to carry electric charge.
Therefore, the more solute is broken down in solution the more conductive the solutions is and the statement is False.
Learn more about Conductivity, here:
https://brainly.com/question/21496559
#SPJ3
(Squirrels gather and store acorns for the winter, which is an example of a ___________ adaptation.)
A. Mimicry
B. Behavioral
C. Structural
D. Environmental
Answer:
C
Explanation:
What are some other type of chemical reactions? What makes them different?
NH4NO3+Zn(OH)2
Balance the equation
Answer:
Balanced equation: Zn (NO 3) 2 + 2 NH 4 OH = 2 NH 4 NO 3 + Zn (OH) 2 Reaction type: double replacement
Explanation:
How many moles of neon gas are there 25.0 L of gas or 5.0°C with a pressure of 89.9 KPa?
Now
[tex]\\ \rm\rightarrowtail PV=nRT[/tex]
[tex]\\ \rm\rightarrowtail n=\dfrac{PV}{RT}[/tex]
[tex]\\ \rm\rightarrowtail n=\dfrac{89.9(25)}{5R}[/tex]
[tex]\\ \rm\rightarrowtail n=89.9(5)/R[/tex]
[tex]\\ \rm\rightarrowtail n=449.5/R mol[/tex]
Acid rain can be caused by all of the following except..
Select one:
A. automobile exhaust.
B. coal-burning power plants.
C. earthquakes.
D. volcanic eruptions.
(I’ve come to the conclusion that they all can cause acid rain, so I am at a loss as to which one doesn’t.)
Answer:
Earthquakes
I might be wrong. Hope this helps
Answer:
earthquake
Explanation:
they all can cause house break and people die dangerous
1s22s22p63s23p3
what element does this represent
Answer:
Its phosphorus (P)
Explanation:
In writing the electron configuration for Phosphorus the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for Phosphorous go in the 2s orbital. The next six electrons will go in the 2p orbital. The p orbital can hold up to six electrons. We'll put six in the 2p orbital and then put the next two electrons in the 3s. Since the 3s if now full we'll move to the 3p where we'll place the remaining three electrons. Therefore the Phosphorus electron configuration will be 1s22s22p63s23p3.
how many moles of methane are produced when 4.53 mol co2 reacts
Answer:
2.25 moles
Explanation:
thats correct answer
Thank you
Calculate how many grams of oxygen form when 2.72 g of KCIOg reacts completely given the
following equation:
2 KCI03 (s)
- 2 KCI (s) + 302 (g)
1.06g
Please refer to the image attached.
You first find the number of moles (n) for KClO3 as you have been given the mass. So n = mass/Mr gives you the moles that is 0.022 mol
Next you use the ratio 2:3 as per the equation where it's 2KClO3 ---> 3O2 so you just cross multiply and get the moles for oxygen.
Now that you know the number of moles for oxygen, you can use the same moles equation that you used earlier to find the mass. mass=n×Mr and so you get the answer as 1.06g of oxygen.
What is the total number of atoms contained in 3.63 moles of nickel?
Answer:
Explanation:
1 mole of nickel contains 6.02 * 10^23 atoms
3.63 mols of nickel contain x atoms.
What you have is a proportion. A proportion consists of 2 ratios or 4 parts.
Of the 4 parts, you know three of them. The problem is to solve for the 4th.
1/3.63 = 6.02*10^23 / x Cross multiply
x = 3.63 * 6.02* 10^23 Combine the right.
Answer: x = 2.19*10^24 atoms
potassium hydroxide → potassium oxide + water
-
how do i balance this equation?
2KOH --> K²O + H²O
Explanation:
Potassium Hydroxide = KOH
Potassium oxide = K²O
Water = H²O
KOH --> K²O + H²O
K = 1. K = 2.
2KOH --> K²O + H²O
O = 2. O = 2.
H = 2. H = 2.
Balanced symbol = 2KOH --> K²O + H²O
Balanced word = 2Potassium Hydroxide --> Potassium oxide + Water.
How many carbon atoms are there in 5 molecules of C6H12O6?
Answer:
6
Explanation:
Glucose has a chemical formula of: C6H12O6 That means glucose is made of 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms.
The weak ionization constant (Ka)
for H2CO3 is equal to:
A
B
(H2CO3]
[H+] [HCO3-)
[H+][HCO3-)
[H2CO3]
Carbonic acid is a weak acid. Its weak ionization constant (Ka) is equal to:
Ka = [H⁺] [HCO₃⁻] / [H₂CO₃]
What is a weak acid?A weak acid is an acid that dissociates partially in the water.
The equation for the acid dissociation of carbonic acid is:
H₂CO₃ ⇄ H⁺ + HCO₃⁻
The weak ionization constant (Ka) is the equilibrium constant for this reaction, that is, the product of the concentration of the products divided by the product of the concentrations of the reactants, all of them raised to their stoichiometric coefficients.
Ka = [H⁺] [HCO₃⁻] / [H₂CO₃]
Carbonic acid is a weak acid. Its weak ionization constant (Ka) is equal to:
Ka = [H⁺] [HCO₃⁻] / [H₂CO₃]
Learn more about weak acids here: https://brainly.com/question/15192126
Why is fusion only possible with small nuclei?
Answer:
The measurement of the mass of nuclei has revealed that the mass of the constituent protons and neutrons is more than the mass of the nucleus
Explanation:
Hope this helps ya have a nice day
explain how sound is produced and travel from one place to another.
Answer:
vibration of particles...........
How many moles of PbCl2 are produced
if 14 moles of AICI3 are consumed?
3Pb(NO3)2 + 2AlCl3
>
3PbCl2 + 2A1(NO3)3
Answer:21 moles of PbCl2 formed
A solution consists of 35.00 g of CuSO4 dissolved in 250.0 mL of water. The molar mass of Cu is 63.55 g/mol the molar mass of S is 32.07 g/mol, and the molar mass of O is 16.00 g/mol. What is the molarity of the solution?
The molarity of a solution that contains 35.00 g of CuSO4 dissolved in 250.0 mL of water is 0.88M.
How to calculate molarity?The molarity of a solution can be calculated using the following formula:
Molarity = no of moles/volume
According to this question, a solution consists of 35.00 g of CuSO4 dissolved in 250.0 mL of water.
no.of moles of CuSO4 = 35g ÷ 159.6g/mol
no. of moles of CuSO4 = 0.22 moles
Therefore; molarity of CuSO4 solution is calculated as follows:
M = 0.22 ÷ 0.25
M = 0.88M
Therefore, the molarity of a solution that contains 35.00 g of CuSO4 dissolved in 250.0 mL of water is 0.88M.
Learn more about molarity at: https://brainly.com/question/12127540
If 0.380 mol of barium nitrate is allowed to react with an excess of phosphoric acid, how many moles of barium phosphate could be formed?
Ba (NO3)2+ H3PO4 → Ba3(PO4)2+ HNO3
If 0.380 mol of barium nitrate is allowed to react with an excess of phosphoric acid, 0.127 moles of barium phosphate could be formed.
How to calculate number of moles?The number of moles of a compound can be calculated stoichiometrically as follows:
Based on this question, the following chemical equation is given:
Ba (NO3)2+ H3PO4 → Ba3(PO4)2+ HNO3
The balanced equation is as follows:
3Ba(NO3)2 + 2H3PO4 → Ba3(PO4)2 + 6HNO3
3 moles of barium nitrate produces 1 mole of barium phosphate
Therefore, 0.380 moles of barium nitrate will produce 0.380/3 = 0.127moles of barium phosphate.
Learn more about stoichiometry at: https://brainly.com/question/9743981
How should the solute and solvent be mixed in the container?.
Fill to the 250-mL mark with water after mixing a tiny amount of water with the solute to dissolve it.
Criteria and constraints help determine which solutions will be applied when extracting materials from pomace in which way
might a specific criterion be applied to this situation? (1 point)
The use of pomace for pharmaceuticals might be chosen if a food company does not have access to a
production plant for extracting chemicals
The use of pomace for pharmaceuticals might be chosen if minimizing production costs is desired
a
The use of pomace for animal feed might be chosen if a food company does not have access to a
production plant for extracting chemicals
The use of pomace for animal feed might be chosen if minimizing production costs is desired.
Answer:
The use of pomace for animal feed might be chosen if minimizing production costs is desired
Explanation:
i've taken the test
The use of pomace for animal feed might be chosen if minimizing production costs is desired. Therefore, the correct option is option D.
What is pomace?The solid byproduct of pressing grapes, olives, or even other fruits for juice or oil is known as pomace or marc. It includes the fruit's skins, pulp, seeds, or stems. Pomace brandy has traditionally been made from grape pomace. Currently, it is primarily used as fertilizer, animal feed, or to extract bioactive substances like polyphenols.
The Latin word "pomum" is where "pommace" comes from. The phrase "pomace" was first used by the English to describe the byproduct of making cider. Pomace wine, which had an alcohol concentration of three to four percent, was very common during the Middle Ages. The use of pomace for animal feed might be chosen if minimizing production costs is desired.
Therefore, the correct option is option D.
To know more about pomace, here:
https://brainly.com/question/26976856
#SPJ2
what are chemical reaction
Example:-
Burning of waxWe cannot pull back the reaction to get wax back .
Answer:
Explanation:
The permanent change in which a new substance is formed is called a chemical reaction.
For example:
i)Burning of wood
ii)Cooking rice
iii)Forming curd from milk
The burning of wood is a chemical reaction because it is a permanent change and it cannot be reversed. Once it is done, it is over it can't be done again. And in the case of example iii, the milk turns into curd by chemical reaction. A new substance i.e curd is formed from the milk.
Hope you understood!
What is the most metallic character with low ionization energies
Answer:
Metals tend to lose electrons in chemical reactions, as indicated by their low ionization energies. Within a compound, metal atoms have relatively low attraction for electrons, as indicated by their low electronegativities.
The ________________and ______________ of magma cause igneous rocks to form.
Answer:
The solidifying/cooling and crystallizing of magma causes igneous rocks to form.
how many moles of glucose do I have if I have 26 grams of glucose
Answer:
0.1443194637888042 moles
Explanation:
Hope This Helps
Have A Great Day
~Zero~
7.06 equilibrium lab report
Chemical equilibrium is a dynamic equilibrium whereby the forward and backward reactions are occurring at the same rate.
What is chemical equilibrium?Chemical equilibrium refers to a situation in which the forward reactions and the backward reactions in a reversible reaction are occurring at the same same same rate.
Factors that affect equilibrium include:
temperature pressure concentrationFor a closed reaction system in equilibrium, the equilibrium position of the reaction will adjust to nullify any changes imposed on the system.
Therefore, chemical equilibrium is a dynamic equilibrium.
Learn more about chemical equilibrium at: https://brainly.com/question/5081082
For the reaction shown, find the limiting reactant for each of the initial quantities of reactants 4Cr + 3o2 -> 2Cr2O3 d)14.8 mol Cr; 10.3 mol O2
Answer: O2
Explanation:
The balanced chemical equation is:
4 Cr + 3 O2 ---> 2 Cr2O3
4 mol of Cr reacts with 3 mol of O2 to form 2 mol of Cr2O3
For 14.8 mol of Cr, 11.1 mol of O2 is required
But we have 10.3 mol of O2
So, O2 is the limiting reagent