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A sample of gas is collected at a pressure of 50.7 kPa and a temperature of...

A sample of gas is collected at a pressure of 50.7 kPa and a temperature of -28oC. The volume is found to be 143 mL. Calculate the volume at STP. b) The density of dry air at 22oC and 104.0 kPa is1.228 g/L. Obtain the average molar mass of dry air from these figures. Discuss your answer in relation to the known composition of dry air.

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