Chemistry, 19.03.2021 04:10, lays20001

Can someone answer all of these with the work shown? 100 points if you answer it. 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?

The density of a gas is 1.26 g/L at STP. What is the mass of I mole? What could this gas be?

The mass of I liter of a gas at STP is 2.75 g. Calculate the molecular mass.

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