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December 5, 2016
Posted by **Lauren** on Tuesday, October 23, 2007 at 10:55pm.

How do I start this out

- Chemistry -
**DrBob222**, Tuesday, October 23, 2007 at 11:21pmPV = nRT

You know P. Assume V = 1 L. You know R and T. Calculate n = mols and that is mols in 1 L.

mols = g/molar mass. you now know mols and you know molar mass. Calculate grams. And that is in 1 L so the answer is g/L. You can do it another way all in one step if you want to redo the equation a little.

PV = nRT

P = (n/V)*RT

but n = g/molar mass so

P = (g/molar mass*V)*RT

But g/V = density = d so

P = (d/molar mass)*RT and solve for d.

d = (P*molar mass)/(RT) - Chemistry -
**Mel**, Tuesday, April 7, 2015 at 10:27pm0.034448