Name _________________________________________________ Student I.D.____________________
CHE1103.004 General Chemistry I Exam 2 October 17, 2011 Test Form A
Answer Problems 1-15 on a ParSCORE Test Form with a No. 2 pencil.
NOTE: Bubble-in your Student I.D. number and Test Form Letter on your ParSCORE form. Turn in the ParSCORE form onl
y
1. 158 mL of a 0.148M NaCl solution is added to 228 mL of a 0.369M NH4NO3 solution.
The concentration of ammonium ions in the resulting mixture is
A) 0.157 M
B) 0.218 M
C) 0.625 M
D) 0.369 M
E) 0 M
2. Calculate the density of CO2(g) at 100°C and 10.0 atm pressure.
A) 1.44 g/L
B) 134 g/L
C) 44.0 g/L
D) 53.6 g/L
E) 14.4 g/L
3. What is the chemical formula of the salt produced by the neutralization of potassium
hydroxide with sulfuric acid?
A) KSO3
B) K2(SO4)3
C) K2SO4
D) K(SO4)2
E) KSO4
4. A mixture of three gases has a total pressure of 1,380 mmHg at 298 K. The mixture is
analyzed and is found to contain 1.27 mol CO2, 3.04 mol CO, and 1.50 mol Ar. What is
the partial pressure of Ar?
A) 0.258 atm
B) 301 mmHg
C) 356 mmHg
D) 5,345 mmHg
E) 8,020 mmHg
5. At what temperature will a fixed amount of gas with a volume of 175 L at 15°C and 760
mmHg occupy a volume of 198 L at a pressure of 640 mm Hg?
A) 274°C
B) 214°C
C) 114°C
