How many liters in .75 moles of methane gas at stp?

At STP 1 mol of an ideal gas has a volume of 22.4 L. We assume (from the question) that the methane has an ideal behavior. Hence if 1 mole of an ideal gas ccupies a volume of 22.4 L Then 0.75 mole occupies X Hence X * 1 = 0.75 * 22.4 X = 16.8L

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