Section 1: Pressure conversions

Find the mass in grams of 1 liter of CH4 at STP. The mass of 1 liter of a gas at STP is 2.75 g. Calculate the molecular mass. The density of hydrogen is 9.00 x 10-2 g/L. What will be the mass of 100 liters? What volume will 1.5 x 1023 molecules of oxygen occupy at STP? Measured at STP, 33.6 liters of NO gas represents how many moles? ................
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