Chem 504
Term 1
Name:
Gas Laws
- Quiz 18
1. A gas syringe contains
42.3 milliliters of a gas at 98.15 "C. Determine the volume that
the gas will occupy if the temperature is decreased to -18.50 "C. 12
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an effusion rate of 0.00279mo1/sec. Which of the gases below would have an
effusion rate of 0.00345mo|/sec?
HCN
CH3CI Ne
NH3
COCI2
C2H2 has
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4.
A gas occupies 25.3 mL at a pressure of 790.5 mm Hg. Determine the volume
pressure is reduced to 760.0 mm
12
Hg.
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5.
A certain gas effuses 4 times as fast as oxygen gas. What is the molar mass of the
unknown gas? 12
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Which diffuses faster, the bad smell from a cat's litter box due to ammonia (NHa) or an
expensive French perfume with an average molar mass of t7O g/mol? How much faster
does the faster one diffuse? /2
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