
Gas Mixture Calculations

Interactive Video
•
Chemistry, Science, Mathematics
•
9th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Dalton's Law of Partial Pressures state about a gas mixture?
The total pressure is the sum of the partial pressures.
The total pressure is the product of the partial pressures.
The total pressure is the difference of the partial pressures.
The total pressure is the average of the partial pressures.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a mole fraction?
The ratio of moles of one component to the total moles in the mixture.
The ratio of the pressure of one gas to the total pressure of the mixture.
The ratio of the volume of one gas to the total volume of the mixture.
The ratio of the mass of one gas to the total mass of the mixture.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the partial pressure of a gas in a mixture?
Divide the mole fraction by the total pressure.
Add the mole fraction to the total pressure.
Multiply the mole fraction by the total volume.
Multiply the mole fraction by the total pressure.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in calculating mole fractions from given masses of gases?
Convert grams to liters.
Convert grams to moles using molar mass.
Convert moles to grams using molar mass.
Convert moles to liters.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a mixture contains 7.5 grams of hydrogen, what is the number of moles of hydrogen?
1.5 moles
3.71 moles
7.5 moles
0.37 moles
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the total number of moles in a gas mixture?
Multiply the moles of all gases.
Add the masses of all gases.
Add the volumes of all gases.
Add the moles of all gases.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mole fraction of hydrogen in a mixture if it has 3.71 moles of hydrogen and a total of 4.01 moles?
0.925
0.371
0.401
0.9254
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