Data Set Exp.7 Use the following data to determine the molar mass of the gas The mass of the flask filled with air 51.896g The mass of the flask filled with the gas 51.9749g The mass of the flask filled with water 157.148g The room temperature = 21C° Experiment 7: DETERMINING THE MOLAR MASS OF A GAS 1- Mass of flask filled with air 2- Mass of flask filled with gas m2 3- Mass of flask filled with water m3 = g 4- Room temperature 5 - Atmospheric pressure = 760 mmHg = 1 atm 6- Density of air under conditions of experiment refer lab manual g / cm3 7- Mass of water = m3 - mị = g 8- Density of water = 1g / cm3 9- Volume of water= mH20 / dy2o = step 7/ step 8 = cm³ 10- V.H20 = V. flask = V. •gas =V. air cm3 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/ Px V 15- MM = step. 13 g x (0.0821 L .atm / K.mol) x 296 K 1atm x step. 10 x 103 L 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 =
Data Set Exp.7 Use the following data to determine the molar mass of the gas The mass of the flask filled with air 51.896g The mass of the flask filled with the gas 51.9749g The mass of the flask filled with water 157.148g The room temperature = 21C° Experiment 7: DETERMINING THE MOLAR MASS OF A GAS 1- Mass of flask filled with air 2- Mass of flask filled with gas m2 3- Mass of flask filled with water m3 = g 4- Room temperature 5 - Atmospheric pressure = 760 mmHg = 1 atm 6- Density of air under conditions of experiment refer lab manual g / cm3 7- Mass of water = m3 - mị = g 8- Density of water = 1g / cm3 9- Volume of water= mH20 / dy2o = step 7/ step 8 = cm³ 10- V.H20 = V. flask = V. •gas =V. air cm3 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/ Px V 15- MM = step. 13 g x (0.0821 L .atm / K.mol) x 296 K 1atm x step. 10 x 103 L 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 =
General Chemistry - Standalone book (MindTap Course List)
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Chapter5: The Gaseous State
Section: Chapter Questions
Problem 5.47QP: Helium gas, He, at 22C and 1.00 atm occupied a vessel whose volume was 2.54 L. What volume would...
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Transcribed Image Text:Data Set Exp.7
Use the following data to determine the molar
mass of the gas
The mass of the flask filled with air
51.896g
The mass of the flask filled with the gas
51.9749g
The mass of the flask filled with water
157.148g
The room temperature
= 21C°
Transcribed Image Text:Experiment 7: DETERMINING THE MOLAR MASS OF A GAS
1- Mass of flask filled with air
2- Mass of flask filled with gas
m2
3- Mass of flask filled with water m3 =
g
4- Room temperature
5 - Atmospheric pressure = 760 mmHg = 1 atm
6- Density of air under conditions of experiment
refer lab manual g / cm3
7- Mass of water = m3 - mị =
g
8- Density of water = 1g / cm3
9- Volume of water= mH20 / dy2o = step 7/ step 8 =
cm³
10- V.H20 = V. flask = V.
•gas
=V. air
cm3
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/ Px V
15- MM = step. 13 g x (0.0821 L .atm / K.mol) x 296 K
1atm x step. 10 x 103 L
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 =
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