How do you find density in the ideal gas law?

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How do you find density in the ideal gas law?

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Answer 1 · 2013-12-19T16:45:51

The density is determined by utilizing a variation of the ideal gas law where density and molar mass replace moles and volume.

The original ideal gas law uses the formula PV = nRT, the density version of the ideal gas law is PM = dRT, where P is pressure measured in atmospheres (atm), T is temperature measured in kelvin (K), R is the ideal gas law constant 0.0821 $\frac{a t m (L)}{m o l (K)}$ $(atm(L))/(mol(K))$ just as in the original formula, but M is now the molar mass ( $\frac{g}{m o l}$ $g/(mol)$ ) and d is the density ( $\frac{g}{L}$ $g/L$ ).

By rearranging the formula to $\frac{P M}{R T} = d$ $(PM)/(RT) = d$ the units of atm, mol and K will cancel and the value will be left with the $\frac{g}{L}$ $g/L$ units for density.

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How do you find density in the ideal gas law?

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