If the amount of gas (in grams) is known, the molecular weight of a gas can be determined. (Recall how molecular weights are needed for determining molecular formulas knowing empirical formulas.) You have 15 grams of a gaseous unknown substance. If the substance has a volume of 11.2 liters at a pressure of 1 atmosphere and a temperature of 0ºC, determine the molecular weight of this unknown substance. (HINT: You will need the equation from #2 above and the units of molecular weight. Use dimensional analysis!) Try to use correct significant figures. Show all of your work clearly for full credit and use units.
This question was answered on: May 23, 2022
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