What is vapour density
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the density of a particular gas or vapour relative to that of hydrogen at the same temperature and pressure is called vapour density
vapour density =mass of n molecules of gas/mass of n molecules of hydrogen.(and thus:molar mass =~2×vapour density)
vapour density =mass of n molecules of gas/mass of n molecules of hydrogen.(and thus:molar mass =~2×vapour density)
udaigiri:
please tell me formula
2× vapour pressure = mass of the gas
hope it helps
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