Chemistry 162 Exam #1 with Complete
Solutions
Consider the reaction: 2N2O(g) O2(g) + 2N2(g). Which of the following will cause a shift
in the equilibrium to the right?
1. Add more N2O
2. Remove O2
3. Remove N2 - ANS-All 1,2,3
500mL of a gas having pressure of 700mmHg will have a volume of ________ when it's
pressure is 1.1atm. - ANS-420 ml
The solid state is defined as having no definite shape or volume - ANS-False
Some elements are more reactive than others - ANS-True
You need to prepare 2.00 L of 0.100 M Na2CO3 solution. The best procedure is to
weigh out - ANS-21.2 g Na2CO3 and add water until the final solution has a volume of
2.00 L.
Increasing the pressure of a gas above a liquid, increases its solublity in the liquid -
ANS-True
The vapor pressure of water at 20.0°C is . If the pressure of a gas collected over water
was measured to be . What is the pressure of the pure gas? - ANS-0.573 atm
A possible rate law for: SO2Cl2 → SO2 + Cl2 is: - ANS-rate = k[SO2Cl2]X
A substance that has weak intermolecular forces will probably be ______________ at
room temperature - ANS-Gas
6.0L of a gas having pressure of 650mmHg will have a volume of ________ when it's
pressure is 1.1atm. - ANS-4.7 g/L
A substance that has strong intermolecular forces will probably be ______________ at
room temperature - ANS-Solid
A 1.0g block of CaCO3 will react faster with HCl(aq) than 1.0g powdered CaCO3 - ANS-
False
Solutions
Consider the reaction: 2N2O(g) O2(g) + 2N2(g). Which of the following will cause a shift
in the equilibrium to the right?
1. Add more N2O
2. Remove O2
3. Remove N2 - ANS-All 1,2,3
500mL of a gas having pressure of 700mmHg will have a volume of ________ when it's
pressure is 1.1atm. - ANS-420 ml
The solid state is defined as having no definite shape or volume - ANS-False
Some elements are more reactive than others - ANS-True
You need to prepare 2.00 L of 0.100 M Na2CO3 solution. The best procedure is to
weigh out - ANS-21.2 g Na2CO3 and add water until the final solution has a volume of
2.00 L.
Increasing the pressure of a gas above a liquid, increases its solublity in the liquid -
ANS-True
The vapor pressure of water at 20.0°C is . If the pressure of a gas collected over water
was measured to be . What is the pressure of the pure gas? - ANS-0.573 atm
A possible rate law for: SO2Cl2 → SO2 + Cl2 is: - ANS-rate = k[SO2Cl2]X
A substance that has weak intermolecular forces will probably be ______________ at
room temperature - ANS-Gas
6.0L of a gas having pressure of 650mmHg will have a volume of ________ when it's
pressure is 1.1atm. - ANS-4.7 g/L
A substance that has strong intermolecular forces will probably be ______________ at
room temperature - ANS-Solid
A 1.0g block of CaCO3 will react faster with HCl(aq) than 1.0g powdered CaCO3 - ANS-
False
