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0.2313 g of an organic substance gave 40 ml of moist nitrogen measured at 15°C and 745 mm pressure. Calculate the % of nitrogen (aq. tension at 15°C is 12.7 mm)

0.2313 g of an organic substance gave 40 ml of moist nitrogen measured at 15°C and 745 mm pressure. Calculate the % of nitrogen (aq. tension at 15°C is 12.7 mm)

Grade:11

1 Answers

Arun
25750 Points
6 years ago
You are given pressure volume and temperature, use ideal gas equation to calculate moles of nitrogen remember that the data will provide you the moles of nitrogen as pressure exerted by solution is negligible as compared to nitrogen now multiply this molar quantity with 14 to get mass of nitrogen and then finally take the ratio of this amount upon the one which is given in question as original amount

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