## Molar Mass Video Lessons (2 video lessons)

Watch simple explanations of Molar Mass and related concepts.

## Molar Mass Questions and Answers (1,361 questions and answers)

Test your understanding with practice problems and step-by-step solutions.

Explain with calculations how to prepare 100.0 mL of 0.1000 M Mg(NO3)2 and 100.0 mL of 0.1000 M Sr(NO3)2. Note: The Mg(NO3)2 supplied is in the form of Mg(NO3)2.6H2O and has a formula weight of 256

A sample of gas has a mass of 0.550 g. Its volume is 119 mL at a temperature of 87^oC and a pressure of 731 mmHg . Find the molar mass of the gas.

Which of the gases among H_2, SF_6, CO_2, He, N_2, and H_2O will have the lowest/smallest effusion rate?

List the gases H2, SF6, CO2, He, N2, and H2O in order of increasing molar mass.

Use the average atomic masses to calculate the mass in grams of the following sample: 125 moles of chromium

Use the average atomic masses to calculate the mass in grams of the following sample: 8.75 times 10^{-2} moles of lead

Use the average atomic masses to calculate the mass in grams of the following sample: 1.51 moles of aluminum

How many moles of O_2 will be formed when 4.32 mol of Fe is reacted? 4 Fe(s) + 3 O_2(g) ----> 2 Fe_2O_3(s)

1. Calculate the mass percent of the calcium in calcium carbonate. Report the answer to at least 3 significant figures.

What is the mass of pure calcium carbonate products collected at the end of the experiment?

## Molar Mass Quizzes (4 quizzes)

Check your mastery of this concept by taking a short quiz.

Determining Molar Mass with Colligative Properties

Calculating Molecular Mass

Calculating Formula Mass of a Compound

Molar Mass

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