Chapter 13 Section 3

Question 1

For gases, What do the coefficients in a balanced equation represent?

Answer 1

The molar amounts and relative volume

Question 2

Why aren’t conditions of temperature and pressure listed as part of the calculation.

Answer 2

Because after mixing, both gases are at the same temperature and pressure. Also a change in temperature would affect all gases in the reaction the same way.

Question 3

1st step to solve a stoichiometry problem

Answer 3

Write the balanced equation for the reaction

Question 4

2nd step to solve a stoichiometry problem

Answer 4

Convert the given mass or volume of a reactant or product to moles

Question 5

3rd step to solve a stoichiometry problem

Answer 5

Use the coefficients in the balanced equation to set up the appropriate mole ratio and multiply to calculate moles of the desired reactant or product

Question 6

4th step to solve a stoichiometry problem

Answer 6

Convert moles of the desired reactant or product to mass or volume as required.