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crisnoobymcnooov72un
07.01.2021 •
Chemistry
Given the following two quantities: 0.50 mol of CH4 and 1.0 mol of HCl,
a. Which has more atoms?
b. Which has more molecules?
c. Which has the greater mass?
d. Which has the greater volume at the same temperature and pressure (both are gases)?
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Ответ:
(a) HCl
(b) HCl
(c) HCl
(d) HCl
Explanation:
Given: 0.50 mol of CH₄ and 1.0 mol of HCl
Using stoichiometry we can calculate the answers to parts a, b, c, and d.
Part (a)# of moles × Avogadro's number = # of atoms or molecules
Avogadro's number: 6.02 * 10²³
HCl has more atoms than CH₄.
Part (b)This is calculated the same way as Part (a); HCl has more molecules than CH₄.
Part (c)Molar mass of CH₄ = 16.04 g/mol
Molar mass of HCl = 36.458 g/mol
HCl has a greater mass than CH₄.
Part (d)Assuming STP:
Molar volume of any gas at STP is 22.4 L/mol.
HCl has a greater volume than CH₄.
Ответ:
D
Explanation:
I think it is D, but that may be wrong, I haven't done this in a while. since the the right of the parenthesis it has the "2" that would make you do distributive property, which would make it D. I hope that's right lol