CHEM 162 EXPERIMENT 5 COMPLETE STUDY
GUIDE WITH SOLVED QUESTIONS
◉ 115 grams of H2SO4 is dissolved in 500.0mL of water. What is the
Normality of the resulting solution? (assume all H+ enter the
solution)
A. 2.3
B. 4.7
C. 11.5.
Answer: B. 4.7
◉ The initial volume of a gas cylinder is 750.0 mL. If the pressure of
a gas inside the cylinder changes from 840.0 mmHg to 360.0 mmHg,
what is the final volume the gas occupies?
A. 630.0 mL
B. 321.4 mL
C. 3.151 L
D. 1.750 L
E. none of the above.
Answer: D. 1.750 L
,◉ At STP, 12.69 g of a noble gas occupies 14.09 L. What is the
identity of the noble gas?
A. Ar
B. He
C. Kr
D. Ne
E. not enough information.
Answer: D. Ne
◉ A barometer uses mercury because:
A. it is a convenient, safe, lightweight material.
B. it is the only liquid metal at room temperature.
C. it is the traditional substance used, water could be as easily used.
D. the density of mercury is very large which allows the barometer
to be short.
E. All of the above are true..
Answer: D. the density of mercury is very large which allows the
barometer to be short.
◉ You need to prepare 2.00 L of 0.100 M Na2CO3 solution. The best
procedure is to weigh out
A. 10.6 g Na2CO3 and add water until the final solution has a
volume of 2.00 L.
, B. 10.6 g Na2CO3 and add 2.00 L of water to it.
C. 21.2 g Na2CO3 and add water until the final solution has a
volume of 2.00 L.
D. 21.2 g Na2CO3 and add 2.00 L of water to it..
Answer: C. 21.2 g Na2CO3 and add water until the final solution has
a volume of 2.00 L
◉ A possible rate law for: SO2Cl2 → SO2 + Cl2 is:
A. rate = k[SO2Cl2]X
B. rate = k[SO2Cl2]y[Cl2]X
C. rate = k[SO2]y[Cl2]X.
Answer: A. rate = k[SO2Cl2]X
◉ The pressure of a gas is 1216 mmHg. What is its pressure in atm?
A. 1960 atm
B. 912000 atm
C. 1.6 atm.
Answer: C. 1.6 atm
◉ O2 gas at 25oC has pressure of 1.1 atm has density of:
GUIDE WITH SOLVED QUESTIONS
◉ 115 grams of H2SO4 is dissolved in 500.0mL of water. What is the
Normality of the resulting solution? (assume all H+ enter the
solution)
A. 2.3
B. 4.7
C. 11.5.
Answer: B. 4.7
◉ The initial volume of a gas cylinder is 750.0 mL. If the pressure of
a gas inside the cylinder changes from 840.0 mmHg to 360.0 mmHg,
what is the final volume the gas occupies?
A. 630.0 mL
B. 321.4 mL
C. 3.151 L
D. 1.750 L
E. none of the above.
Answer: D. 1.750 L
,◉ At STP, 12.69 g of a noble gas occupies 14.09 L. What is the
identity of the noble gas?
A. Ar
B. He
C. Kr
D. Ne
E. not enough information.
Answer: D. Ne
◉ A barometer uses mercury because:
A. it is a convenient, safe, lightweight material.
B. it is the only liquid metal at room temperature.
C. it is the traditional substance used, water could be as easily used.
D. the density of mercury is very large which allows the barometer
to be short.
E. All of the above are true..
Answer: D. the density of mercury is very large which allows the
barometer to be short.
◉ You need to prepare 2.00 L of 0.100 M Na2CO3 solution. The best
procedure is to weigh out
A. 10.6 g Na2CO3 and add water until the final solution has a
volume of 2.00 L.
, B. 10.6 g Na2CO3 and add 2.00 L of water to it.
C. 21.2 g Na2CO3 and add water until the final solution has a
volume of 2.00 L.
D. 21.2 g Na2CO3 and add 2.00 L of water to it..
Answer: C. 21.2 g Na2CO3 and add water until the final solution has
a volume of 2.00 L
◉ A possible rate law for: SO2Cl2 → SO2 + Cl2 is:
A. rate = k[SO2Cl2]X
B. rate = k[SO2Cl2]y[Cl2]X
C. rate = k[SO2]y[Cl2]X.
Answer: A. rate = k[SO2Cl2]X
◉ The pressure of a gas is 1216 mmHg. What is its pressure in atm?
A. 1960 atm
B. 912000 atm
C. 1.6 atm.
Answer: C. 1.6 atm
◉ O2 gas at 25oC has pressure of 1.1 atm has density of:
