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It is found that 250 ml of gas at STP has a mass

It is found that 250 ml of gas at STP has a mass of 1.00 gram. What is the molar mass?
a. 89.6 gram/mol
b. 28.0 gram/mol
c. 14.0 gram/mol
d. 22.4 gram/mol

Solution Preview

According to the ideal gas law:
PV=nRT

At STP conditions:
P = 1 atm
T = 273 K
R = 0.08206 (Latm/molK)

Hence substitute ...

Solution Summary

The solution provides detailed explanations and answer for the ideal gas problem.

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