Posted by **michelle** on Wednesday, March 21, 2007 at 11:18pm.

Gas X has a density of 2.60/L at STP. Determine the molar of this gas.

Please show me the steps to solve this problem. thanks

You just need the definition.

One mol of a gas at STP occupies 22.4 L.

You have the mass of 1 L. Just calculat the mass of 22.4 L. Piece of cake.

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