- Group 4 34 6210 G 1 1 Mass Of Flask Filled With Air M 2 Mass Of Flask Filled With Gas M2 3 Mass Of Flask Filled W 1 (51.9 KiB) Viewed 81 times
- Group 4 34 6210 G 1 1 Mass Of Flask Filled With Air M 2 Mass Of Flask Filled With Gas M2 3 Mass Of Flask Filled W 2 (99.38 KiB) Viewed 81 times
Experiment 8: DETERMINING THE MOLAR MASS OF A GAS Name : ID: Sec: Group number: Aim : 1- Mass of flask filled with air mi g 2- Mass of flask filled with gas m2 g 3- Mass of flask filled with water m3 = g 4- Room temperature = 21°C + 273 = 296 K 5 - Atmospheric pressure = 760 mmHg = 1 atm 6- Density of air under conditions of experiment = g / cm3 7- Mass of water = m3 - m = g 8- Density of water = lg / cm 9- Volume of water = mh20/d420 = step 7 / step 8 = cm3 10- V.H2O = V. flask = V.gas = V. air = cm3 g g 11- Mass of air m air = d air x Vair =step 6 x step 10 = 12- Mass of empty flask = m - m air = step 1 - step 11 = 13- Mass of gas = m2 - m flask = step 2 - step 12 = 14- Molar mass of a gas = m .gas x R x T/P x V 15- MM = step. 13 g x (0.0821 L .atm/ K.mol ) x 296 K g latm x step. 10 x 10-²L 16 - MM of the gas = g/mol 17 - The gas is 18- The theoretical Molar Mass from periodic table = g/mol 19-% Error = (Actual MM - Theoretical MM) / Theoretical MM X 100 = % Conclusion :