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What is the experimental molar mass (that is, calculated from the data given and not taken from the periodic table) of magnesium if 0.0309 grams of magnesium generates 32.30 mL of hydrogen at 20.7 °C with a hydrogen partial pressure of 722.7 torr? Note that the partial pressure of water vapor has already been subtracted from the total pressure. 22.7 g/mol 19.9 g/mol 26.0 g/mol 24.2 g/mol 26.1 g/mol

What is the experimental molar mass (that is, calculated from the data given and not taken from the periodic table) of magnesium if 0.0309 grams of magnesium generates 32.30 mL of hydrogen at 20.7 °C with a hydrogen partial pressure of 722.7 torr? Note that the partial pressure of water vapor has already been subtracted from the total pressure. 22.7 g/mol 19.9 g/mol 26.0 g/mol 24.2 g/mol 26.1 g/mol

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter10: Solids, Liquids, And Phase Transitions
Section: Chapter Questions
Problem 38P
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What is the experimental molar mass (that is, calculated from the data given and not taken from the periodic table) of magnesium if 0.0309 grams of magnesium generates 32.30 mL of hydrogen at 20.7 °C with a hydrogen partial pressure of 722.7 torr? Note that the partial pressure of water vapor has already been subtracted from the total pressure. 22.7 g/mol 19.9 g/mol 26.0 g/mol 24.2 g/mol 26.1 g/mol
Transcribed Image Text:What is the experimental molar mass (that is, calculated from the data given and not taken from the periodic table) of magnesium if 0.0309 grams of magnesium generates 32.30 mL of hydrogen at 20.7 °C with a hydrogen partial pressure of 722.7 torr? Note that the partial pressure of water vapor has already been subtracted from the total pressure. 22.7 g/mol 19.9 g/mol 26.0 g/mol 24.2 g/mol 26.1 g/mol
When 64.29 grams of fictional compound X is added to water to make 544.3 grams of solution, the temperature increases from 23.68 °C to 40.44 °C. What is the heat of solution for compound X given that the molar mass of compound X is 87.01 g/mol? Assume the specific heat capacity of the solution is 4.18 J/g°C. 38.13 kJ/mol 5.438 kJ/mol -51.61 kJ/mol 51.61 kJ/mol -38.13 kJ/mol
Transcribed Image Text:When 64.29 grams of fictional compound X is added to water to make 544.3 grams of solution, the temperature increases from 23.68 °C to 40.44 °C. What is the heat of solution for compound X given that the molar mass of compound X is 87.01 g/mol? Assume the specific heat capacity of the solution is 4.18 J/g°C. 38.13 kJ/mol 5.438 kJ/mol -51.61 kJ/mol 51.61 kJ/mol -38.13 kJ/mol
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