Gases Chemistry Worksheet - Chapter 13, An Introduction To Chemistry Page 35
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Review Questions
11. Explain why decreased volume for the gasoline-air mixture in the cylinders of
a gasoline engine, increased number of gas particles, and increased temperature
lead to an increase in pressure in the cylinders.
12. Explain why air moves in and out of our lungs as we breathe.
13. Explain why balloons expand as they rise into the atmosphere.
Section 13.2 Ideal Gas Calculations
14. Write at least one value for the universal gas constant, R, including units.
15. Given values for three of the following four variables, calculate the fourth: P, V,
n, and T.
16. Given values for four out of the following five variables, calculate the fifth: P, V,
g, M, and T.
17. Given the pressure and temperature of a gas, calculate its density.
18. Given (directly or indirectly) values for seven out of the following eight variables,
calculate the eighth: P
, V
, n
, T
, P
, V
, n
, and T
.
1
1
1
1
2
2
2
2
Section 13.3 Equation Stoichiometry and Ideal Gases
19. Convert between volume of gas and moles of gas in an equation stoichiometry
problem using either the molar volume at STP, the ideal gas equation, or R as a
conversion factor.
Section 13.4 Dalton’s Law of Partial Pressures
20. Explain why the total pressure of a mixture of ideal gases is equal to the sum of
the partial pressures of each gas.
21. Given all but one of the following properties for a mixture of gases, calculate the
one not given: total pressure of the mixture of gases and partial pressure of each
gas.
22. Given all but one of the following properties for a mixture of gases, calculate the
one not given: total pressure of the mixture of gases, mass or moles of each gas,
temperature, and volume of the container.
Review
1.
Describe the particle nature of gases.
What is 265.2 °C on the Kelvin scale? Convert 565.7 K into °C.
2.
Questions
3.
About 55% of industrially produced sodium sulfate is used to make detergents. It
is made from the following reaction.
4NaCl + 2SO
+ 2H
O + O
→ 2Na
+ 4HCl
SO
2
2
2
2
4
a. What is the maximum mass of sodium sulfate that can be produced in the
reaction of 745 Mg of sodium chloride with excess SO
, H
O, and O
?
2
2
2
b. What is the maximum mass of sodium sulfate that can be produced in the
reaction of 745 Mg of sodium chloride with 150 Mg H
O and excess SO
2
2
and O
?
2
c. If 868 Mg Na
SO
are formed in the reaction of 745 Mg of sodium
2
4
chloride with 150 Mg H
O and excess SO
and O
, what is the percent
2
2
2
yield?
d. What volume of 2.0 M Na
SO
can be formed from 745 Mg of sodium
2
4
chloride with excess SO
, H
O, and O
?
2
2
2
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