Asked by Lynn
HELP ME PLEASE!
1. Calculate the weight of 16.2L of pure SO2 gas at STP. (answer in grams)
a.16.2
b.31.8
c.39.5
d.46.3
e.64.1
2.A volume of 725mL of a gas is collected at 105Celsius and 745torr. The gas weighs 1.93 grams. What is the Gas?
a.Fe2
b.Ar
c.Kr
d.Xe
e.Rn
1. Calculate the weight of 16.2L of pure SO2 gas at STP. (answer in grams)
a.16.2
b.31.8
c.39.5
d.46.3
e.64.1
2.A volume of 725mL of a gas is collected at 105Celsius and 745torr. The gas weighs 1.93 grams. What is the Gas?
a.Fe2
b.Ar
c.Kr
d.Xe
e.Rn
Answers
Answered by
DrBob222
1 mol of gas at STP occupies 22.4 L. 1 mol of SO2 is 32+16+16.
Use PV = nRT for the second one. Solve for n, then use n = grams/molar mass. Use the molar mass to identify the gas from the list.
Use PV = nRT for the second one. Solve for n, then use n = grams/molar mass. Use the molar mass to identify the gas from the list.
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