What is the molecular mass (Formula mass) if a 3.2 g of the gas occupies a volume of 1.6 L at 30 degree Celsius and 745 mm Hg?
PV = nRT
0,98 × 1,6 = n× 8,31 × 303,15
1,568 = n × 2519
n = 0,0006mol
M= 3,2 / 0,0006 = 5333g/mol
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