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Assuming air as an ideal gas, what will ...

Assuming air as an ideal gas, what will be its effective molecular weight, if 500 cc sample of air at 27°C weighs 0.6 g at one atmospheric pressure?

A

`59.2g mol^-1`

B

`14.8gmol^-1`

C

`44.4g mol^-1`

D

`29.6g mol^-1`

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