Free Printable Moles and Conversions Quiz

Worksheets

Moles and Conversions Quiz

Total questions: 15

Worksheet time: 32mins

Name

Class

Date

What is the gram formula mass of CaF₂?

58 amu

58 g

78 amu

78 g

The mass of one mole of an element is equal to

its atomic number from the periodic table, but in amus.

its atomic mass from the periodic table, but in amus.

its atomic mass from the periodic table, but in grams.

its atomic number from the periodic table, but in grams.

How many formula units are in 2.5 moles of NaCl?

1.5 x10²⁴formula units

1.5 formula units

4.2 formula units

4.2 x10^-24molecules

Shivani measures out 6.0 moles of epsom salt (MgSO₄) to put in her bath. How many grams of MgSO₄ went in the bath?

3.6 x 10²⁴ g

720 g

0.050 g

340 g

How many molecules are there in 31.8 moles of water?

5.28 x 10^-23 molecules

1.91 x 10²⁵ molecules

5.28x 10-²⁵

1.91 x 10²²

Determine the mass of 4.20 moles of C₆H₁₂

353 g

0.0499 g

337 g

2.53 x 10²⁴ g

What is the mass of 1.2 x 10²⁴ atoms of C?

2.0 grams

24 grams

0.17 grams

1.4 x 10²⁵ grams

Calculate the number of atoms in 0.0340 g Zn.

5.20 x 10^-4 atoms Zn

3.13 x 10²³ atoms Zn

3.13 x 10²⁰ atoms Zn

2.05 x 10²² atoms Zn

How many formula units are there in 2.45 moles potassium chloride?

4.07 x 10^-24

1.47 x 10²⁴

1.47

4.07

10.

What is the percent by mass of magnesium in MgO?

20%

40%

50%

60%

11.

Which pair has the same empirical formula?

NaCrO₄ and Na₂Cr₂O₇

C₂H₄O₂ and C₆H₁₂O₆

C₃H₆O₃and C₂H₆O₂

CH₄ and C₂H₆

12.

What is the molecular formula if the empirical formula is CH₂O and the molecular molar mass is 180.18?

CH₂O

C₂H₄O₂

C₄H₈O₄

C₆H₁₂O₆

13.

In which compound is the percent composition by mass of Cl equal to 42%?

HClO (gram formula mass = 52 g/mol)

HClO₂ (gram formula mass = 68 g/mol)

HClO₃ (gram formula mass = 84 g/mol)

HClO₄ (gram formula mass = 100 g/mol)

14.

What is the empirical formula for N₂S₃?

N₃S₂

N₂S₃

N₁S_1.5

15.

How many oxygen atoms in
Mg(NO₃)₂

Reset

Moles and Conversions Quiz

Total questions: 15

Worksheet time: 32mins

Similar Resources on Wayground