Exam (elaborations)
Chem 162 exam 1 practice test
- Module
- CAA201 - Test 3.
- Institution
- CAA201 - Test 3.
Chem 162 exam 1 practice test
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Chem 162 exam 1 practice testFor the reaction: X + Y → Z ; the rate law is: rate = k[X]2[Y]. To double the
reaction rate :
A. double the concentration of Z
B. double the concentration of Y
C. double the concentration of X - double the concentration of Y
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 - 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 - 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 - 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. - 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. - 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 - 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 - C. 1.6 atm
O2 gas at 25oC has pressure of 1.1 atm has density of:
A. 0.0019 g/L
B. 0.72 g/L
C. 1.4 g/L - C. 1.4 g/L
One mole O2(g) at 0oC and 1atm pressure will have a volume of 22.4L
True
False - true
Pressure exerted by a gas above the surface of liquid, describes:
A. vapor pressure
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