Free Printable Mole Quiz Review

1.

If you had 3 moles of carbon tetrachloride, CCl₄, you would have 7 moles of chlorine atoms.

a)

True

b)

False,

you would have 12 moles of chlorine atoms

c)

False,

you would have 6.02 x 10²³ chlorine atoms

2.

The atomic mass or formula mass tells you how many moles are in 1 gram of substance.

a)

True

b)

False,

how many grams are in 1 milliliter

c)

False,

how many grams are in 1 mole

3.

If you have 0.5 moles, you have 3.01 x 10²³ atoms or molecules.

a)

True

b)

False,

you have 6.02 x 10²³ atoms or molecules

c)

False,

you have 12 atoms or molecules

4.

1.00 x 10²³ molecules of CO₂ is equal to 7.33 grams of CO_2.

(formula mass of CO₂ = 44.0 g/mol)

a)

True

b)

False,

1.37 x 10⁴⁵ grams of CO₂

c)

False,

3.78 x 10^-2 grams of CO₂

5.

If you had 1 mole of sodium phosphate, Na₃PO₄, you would have 7 moles of total atoms.

a)

True

b)

False,

1 mole of total atoms

c)

False,

8 moles of total atoms

6.

6.02 x 10²³ atoms of krypton (Kr) is equal to 83.8 g of krypton.

a)

True

b)

False,

39.1 g of krypton

c)

False,

167.6 g of krypton

7.

12.03 x 10²³ grams of cobalt (Co) is equal to 2 moles of cobalt.

a)

True

b)

False,

12.03 x 10²³ liters of cobalt

c)

False,

12.03 x 10²³ atoms of cobalt

8.

There are 6.02 x 10²³ chlorine atoms in 1 mole of chlorine gas, Cl₂.

a)

True

b)

False,

12.04 x 10²³ chlorine atoms

c)

False,

3.01 x 10²³ chlorine atoms

9.

If you have 6.02 x 10²³ atoms of gold, Au, mixed with 3.01 x 10²³ atoms of aluminum, Al, you would have a total of 9.03 x 10²³ atoms.

a)

True

b)

False,

9.03 x 10⁴⁶ atoms

c)

False,

3.01 x 10²³ atoms

10.

In 3 moles of hydrogen gas, H₂, there are 18.06 x 10²³ hydrogen molecules.

a)

True

b)

False,

36.12 x 10²³ oxygen molecules

c)

False,

9.03 x 10²³ oxygen molecules

11.

How many moles are in 8.30 X 10²³ molecules of H₂O?

a)

1.38 X 10²³ moles H₂O

b)

1.38 moles H₂O

c)

2.00 moles H₂O

d)

1.00 mole H₂O

12.

What is the mass of 2.50 mole of oxygen gas O₂?

(formula mass of O₂ = 32.0 g/mol)

a)

40.0 g

b)

80.0 g

c)

16.0 g

d)

32.0g

13.

Determine the volume, in liters, of 1.2 mole SO₂ gas at STP.

a)

13 L

b)

27 L

c)

6.5 L

d)

22 L

14.

If you have 82.21 grams of NO₂, how many molecules do you have?

(formula mass of NO₂ = 46.01 g/mol)

Pick the correct setup.

a)

$82.21\ g\ \times\frac{1\ mol}{46.01\ g}\times\frac{1\ mol}{6.02x10^{23}\ molecules}$

b)

$82.21\ g\ \times\frac{1\ mol}{46.01\ g}\times\frac{6.02x10^{23}\ molecules}{1\ mol}$

c)

$82.21\ g\ \times\frac{6.02x10^{23}\ molecules}{1\ mol}$

d)

$82.21\ g\ \times\frac{1\ mol}{46.01\ g}$

15.

How many grams are in $9.28x10^{23}\ molecules$ of NaCl?

(formula mass of NaCl = 58.44 g/mol)

Choose the correct setup.

a)

$9.28x10^{23}\ molecules\ \times\frac{6.02x10^{23}\ grams}{1\ mole}$

b)

$9.28x10^{23}\ molecules\ \times\frac{6.02x10^{23}\ mc}{1\ mole}\times\frac{58.44\ g}{1\ mole}$

c)

$9.28x10^{23}\ molecules\ \times\frac{1\ mole}{6.02x10^{23}\ mc}\times\frac{58.44\ g}{1\ mole}$

d)

$9.28x10^{23}\ molecules\ \times\frac{58.44\ g}{1\ mole}$

16.

How many molecules of water, H₂O, are in a 821.3 g sample?

(formula mass of H₂O = 18.0 g/mol)

a)

45.58 molecules

b)

8.232 x 10²⁵ molecules

c)

8.909 x 10²⁷ molecules

d)

2.747 x 10²⁵ molecules

17.

How many moles are in 98.3 grams of aluminum hydroxide, Al(OH)₃?

(formula mass of Al(OH)₃ = 78.0 g/mol)

a)

1.26 moles

b)

0.8 moles

c)

7,670 moles

d)

1.63 x 10^-22 moles

18.

Convert 86.235 moles of diphosphorus pentaoxide, P₂O₅, to molecules.

a)

1.4286 x 10^-22 molecules

b)

6.02 x 10²³ molecules

c)

7.0000 x 10²¹ molecules

d)

5.1913 x 10²⁵ molecules

19.

How many grams of argon, Ar(g), are present in 11.2 L of argon gas at STP?

(atomic mass of Ar = 39.9 g/mol)

a)

20.0 g Ar

b)

6.29 g Ar

c)

0.0125 g Ar

d)

1.00 x 10⁴ g Ar

20.

If you have 3,520 mL of acetone, how many molecules of acetone do you have?

(density of acetone = 0.791 g/mL) (formula mass of acetone = 58.1 g/mol)

a)

7.96 x 10^-23 molecules aceton

b)

1.56 x 10²⁹ molecules acetone

c)

2.88 x 10²⁵ molecules acetone

d)

4.61 x 10²⁵ molecules acetone

Mole Quiz Review

Total questions: 20

Worksheet time: 41mins

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