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Calculate the density (in g/L) of Freon-12, CF2Cl2, at 32.2°C and 0.968 atm.

Calculate the density (in g/L) of Freon-12, CF2Cl2, at 32.2°C and 0.968 atm.

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter5: Gases
Section: Chapter Questions
Problem 80QAP
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1. Calculate the density (in g/L) of Freon-12, CF2Cl2, at 32.2°C and 0.968 atm.
2. What is the molar mass of a gas if 0.246 g of the gas occupies a volume of 125 mL at a temperature of 131°C and a pressure of 774 torr?
3. A mixture of 0.220 g of H2, 1.23 g of N2, and 0.834 g of Ar is stored in a closed container at STP. Find the volume (in L) of the container, assuming that the gases exhibit ideal behavior.
4. Before small batteries were available, carbide lamps were used for bicycle lights. Acetylene gas, C2H2, and solid calcium hydroxide were formed by the reaction of calcium carbide, CaC2, with water. The ignition of the acetylene gas provided the light. Currently, the same lamps are used by some cavers, and calcium carbide is used to produce acetylene for carbide cannons. What volume (in L) of C2H2 at 1.010 atm and 13.4°C is formed by the reaction of 15.89 g of CaC2 with water?
5.   Calculate the density (in g/L) of Freon-12, CF2Cl2, at 32.2°C and 0.968 atm.
6. A high altitude balloon is filled with 1.42 ✕ 104 L of hydrogen at a temperature of 20.°C and a pressure of 741 torr. What is the volume (in L) of the balloon at a height of 20. km, where the temperature is 
−48°C and the pressure is 63.1 torr?
7. The effect of chlorofluorocarbons (such as CCl2F2(g)) on the depletion of the ozone layer is well known. The use of substitutes, such as CH3CH2F(g), for the chlorofluorocarbons, has largely corrected the problem. Calculate the volume (in L) occupied by 15.7 g of each of these compounds at STP.
(a)
CCl2F2(g)
 L
(b)
CH3CH2F(g)
 L
8. A typical barometric pressure in a fictional location is about 739 mmHg. Calculate this pressure in atm and kPa.
 atm 
 kPa
9. How many moles of gaseous boron trifluoride, BF3, are contained in a 4.3385 L bulb at 786.1 K if the pressure is 1.217 atm?
 mol
How many grams of BF3?
 g
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