The density of air at NTP is 1.293kgm^(-3). Calculate its density when its temperature is 16.6^(@)C and pressure is 75cm of mercury.

The density of air at NTP is 1.293kgm^(-3). Calculate its density when

1.	The density of air at NTP is 1.293kgm^(-3). Calculate its density when its temperature is 16.6^(@)C and pressure is 75cm of mercury.
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