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Exploring Moles and Molar Mass Conversions

Exploring Moles and Molar Mass Conversions

Assessment

Interactive Video

Chemistry

6th - 10th Grade

Practice Problem

Hard

Created by

Ethan Morris

FREE Resource

The video tutorial explains how to convert between moles and mass using molar mass as a conversion factor. It provides a detailed example with diatomic nitrogen, demonstrating the calculation process. Another example with methanol illustrates converting grams to moles, reinforcing the method's consistency across different substances.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the molar mass of diatomic nitrogen (N2)?

32.05 grams per mole

14.01 grams per mole

28.02 grams per mole

42.00 grams per mole

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the molar mass of a substance represent?

The number of molecules in one gram

The number of atoms in one mole

The number of grams in one mole

The number of moles in one gram

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many grams are in one mole of diatomic nitrogen (N2)?

14.01 grams

28.02 grams

42.00 grams

32.05 grams

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you have 4.97 moles of diatomic nitrogen (N2), what is the mass in grams?

139 grams

150 grams

160 grams

120 grams

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the molar mass of methanol (CH3OH)?

14.01 grams per mole

42.00 grams per mole

32.05 grams per mole

28.02 grams per mole

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many grams of methanol (CH3OH) are equal to one mole?

28.02 grams

32.05 grams

42.00 grams

14.01 grams

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you have 42.0 grams of methanol (CH3OH), how many moles do you have?

1.31 moles

1.60 moles

1.50 moles

1.20 moles

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