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How many atoms do mercury vapour molecules consist of if if the density of mercury vapoue relative to air is 6.92?the average mass of air ia 29 g/ mole.

How many atoms do mercury vapour molecules consist of if if the density of mercury vapoue relative to air is 6.92?the average mass of air ia 29 g/ mole.

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1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
7 years ago
relative density=density of mercury/density of air=mass of 1 mole of hg/mass of 1 mole of air
=mass of 1 mole of mercury=6.92*28=200.68 g/mole=molecular mass of Hg
no of atom=avagadros no=6.023*10^23

thanks and regards
sunil kr
askIItian faculty

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