Answer to Question #112207 in General Chemistry for Rashit Sahiti

General Chemistry

Question #112207

A 255-mL sample of nitrogen was collected over mercury at 21.0 degrees C at a pressure of 745 mm Hg. Calculate the mass of the gas.

Expert's answer

pV=nRT, pV= mRT/M, m= pVM/RT=745 x 255 x 28/62400 = 85.2451923.

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