Quiz about Chemical Quantities Review

Question 1

How many moles are contained in 45 grams of aluminum?

Accepted Answer

1.7 mol

Answer

27 mol

Answer

1215 mol

Answer

57 mol

Question 2

How many moles of water contain 3.01x10²² water molecules?

Accepted Answer

0.05 mol

Answer

1.25 mol

Answer

0.90 mol

Answer

2.35 mol

Question 3

$$6.00\ x\ 10^{23}$$ atoms

Accepted Answer

$$<$$ Less than one mole

Answer

$$>$$ Greater than one mole

Answer

$$=$$ Equal to one mole

Question 4

5 grams of Helium

Accepted Answer

$$>$$ Greater than one mole

Answer

$$=$$ Equal to one mole

Answer

$$<$$ Less than one mole

Question 5

40.4 L of Hydrogen Gas ( $$H_2$$ )

Accepted Answer

$$>$$ Greater than one mole

Answer

$$=$$ Equal to one mole

Answer

$$<$$ Less than one mole

Question 6

10 L of Hydrogen Gas ( $$H_2$$ )

Accepted Answer

$$<$$ Less than one mole

Answer

$$>$$ Greater than one mole

Answer

$$=$$ Equal to one mole

Question 7

22.4 L of Oxygen Gas ( $$O_2$$ )

Accepted Answer

$$=$$ Equal one mole

Answer

$$>$$ Greater than one mole

Answer

$$<$$ Less than one mole

Question 8

What is the conversion factor from liters to moles?

Accepted Answer

$$\frac{1\ mol}{22.4\ L}$$

Answer

$$\frac{22.4\ L}{1\ mol}$$

Question 9

What is the SI unit for the amount of a substance?

Accepted Answer

mole

Answer

meter

Answer

mass

Answer

molecule

Question 10

How many hydrogen atoms are in the compound: (NH₄)₂CO₃

Accepted Answer

8

Answer

3

Answer

4

Answer

6

Question 11

What is the percent composition of nitrogen in NH₃?

Accepted Answer

82%

Answer

25%

Answer

14%

Answer

28%

Question 12

C₆H₁₂O₆has how many total atoms?

Accepted Answer

24

Answer

6

Answer

12

Question 13

What is the molar mass of carbon dioxide (CO2)?

Accepted Answer

44 g/mol

Answer

32 g/mol

Answer

28 g/mol

Answer

16 g/mol

Question 14

If you have 0.5 moles of NaCl, how many grams do you have? (Molar mass of NaCl = 58.44 g/mol)

Accepted Answer

29.22 g

Answer

58.44 g

Answer

116.88 g

Answer

14.61 g

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