
Che11_chap12
Quiz by Daisy Johnson
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we have 8 g of He

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Determine the volume

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Question 52:Â Determine the volume of 1.5 mol of butane gas if a 2.5 mol sample of butane has a volume of 38.5 L. Assume temperature and pressure are kept constant.
Question 53:Â

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Question 62:Â
A neon gas in a sign has a volume of 42.5 L at 25 °C and 3.5 kPa. Calculate the mass Of neon.
[ans: ? g]
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What amount of ethane gas is present in a sample that has a volume of 320 mL at 25.0 °C and 420 kPa?
[ans: ? mol ]
Question 64:Â
A tank contains 40 kg of propane gas, C 3 H 8 (g), at a pressure of 170 kPa and a temperature of 25 °C. What is the volume of the tank?
[ans: ? x 10^4 L]
Question 65:Â
A certain diatomic gas is found to have a density of 3.17 g/L at STP. Calculate the molar mass of this gas.
[ans: ? g/mol]