Quiz about Molar Mass

Question 1

What is the molar mass NaCl?

Accepted Answer

58.44 g/mol

Answer

58 g/mol

Answer

57 g/mol

Answer

56.96 g/mol

Question 2

What is the molar mass of Na₂CO₃?

Accepted Answer

105.99 g/mol

Answer

51.00 g/mol

Answer

83.00 g/mol

Answer

73.99 g/mol

Question 3

What is the molar mass of Ca(NO₃)₂ ?

Accepted Answer

164.10 g/mol

Answer

102.09 g/mol

Answer

116.10 g/mol

Answer

100.10 g/mol

Question 4

What is the mass of one mole of aluminum?

Accepted Answer

27 g

Answer

13 g

Answer

54 g

Answer

14 g

Question 5

What is the molar mass of Al(NO₃)₃?

Accepted Answer

213.01 g/mol

Answer

62.01 g/mol

Answer

88.99 g/mol

Answer

151.00 g/mol

Question 6

What is the molar mass of AuCl₃?

Accepted Answer

303.3 g

Answer

96 g

Answer

130 g

Answer

232.5 g

Question 7

If you have 3 moles of $$CO_2$$ , how many grams do you have? (Molar mass of $$CO_2$$ = 44 g/mol)

Accepted Answer

132 g

Answer

44 g

Answer

88 g

Answer

176 g

Question 8

What is the molar mass of Mg(NO₃)₂

Accepted Answer

148.313g/mol

Answer

134.306g/mol

Answer

54.311g/mol

Question 9

Calculate the molar mass of $$H_2O$$ .

Accepted Answer

18 g/mol

Answer

16 g/mol

Answer

20 g/mol

Answer

22 g/mol

Question 10

What is the molar mass of Li₂O?

Accepted Answer

29.88 g/mol

Answer

22.94 g/mol

Answer

45.88 g/mol

Answer

38.94 g/mol

Question 11

The molar mass of an element is equal to its...

Accepted Answer

Atomic mass

Answer

Atomic number

Answer

Oxidation number

Answer

Valence electrons

Question 12

What is the molar mass of NaOH?

Accepted Answer

40 g/mol

Answer

38.989 g/mol

Answer

23.998 g/mol

Answer

57.004 g/mol

Question 13

What is the molar mass of CO₂?

Accepted Answer

44

Answer

12

Answer

16

Answer

32

Question 14

Which of the following is needed to determine the molar mass of a molecule?

Accepted Answer

All are correct and needed.

Answer

Types of elements in the molecule

Answer

Quantity of elements in the molecule

Answer

Mass of the elements in the molecule

Question 15

What is the molar mass of H₂O?

Accepted Answer

18.02 g/mol

Answer

6.02 x 10²³

Answer

16 g/mol

Answer

17.01 g/mol

Question 16

What is the molar mass of B₂(CO₃)₃?

Accepted Answer

201.65 g/mol

Answer

153.65 g/mol

Answer

81.63 g/mol

Answer

105.65 g/mol

Question 17

What is the molar mass of CO₂?

Accepted Answer

44.01 g/mol

Answer

56.02 g/mol

Answer

28.01 g/mol

Answer

32.00 g/mol

Question 18

What id the molar mass of F₂?

Accepted Answer

38.00 g/mol

Answer

76.00 g/mol

Answer

2 g/mol

Answer

19.00 g/mol

Question 19

What is the molar mass of Cl₂?

Accepted Answer

70 g/mol

Answer

17 g/mol

Answer

35 g/mol

Answer

89 g/mol

Question 20

What id the molar mass of UF₆?

Accepted Answer

352 g/mol

Answer

101 g/mol

Answer

238 g/mol

Answer

257 g/mol

Question 21

What is the molar mass of H_2SO_4?

Accepted Answer

98.08 g/mol

Answer

100.07 g/mol

Answer

96.06 g/mol

Answer

102.09 g/mol

Question 22

Which of the following compounds has the highest molar mass?

Accepted Answer

C_6H_12O_6

Answer

H_2O

Answer

CO_2

Answer

CH_4

Question 23

Calculate the molar mass of CaCO_3.

Accepted Answer

100.09 g/mol

Answer

98.07 g/mol

Answer

102.11 g/mol

Answer

104.10 g/mol

Question 24

If you have 2 moles of NaOH, how many grams do you have? (Molar mass of NaOH = 40 g/mol)

Accepted Answer

80 g

Answer

40 g

Answer

60 g

Answer

100 g

Question 25

What is the molar mass of NH_3?

Accepted Answer

17.03 g/mol

Answer

18.04 g/mol

Answer

16.02 g/mol

Answer

15.01 g/mol

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