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Topic 6 Quantitative analysis, equilibrium, fuel cells

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卡片总数: 24 张•内容版本: v4•公开卡包•更新时间: 8/1/2026

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#1
正面 (问题)

• What is the relative formula mass of magnesium oxide, MgO?

背面 (解答)

40

#2
正面 (问题)

• What is the relative formula mass of water, H2O?

背面 (解答)

18

#3
正面 (问题)

• What is the relative formula mass of carbon dioxide, CO2?

背面 (解答)

44

#4
正面 (问题)

• What is the relative formula mass of sulfuric acid, H2SO4?

背面 (解答)

98

#5
正面 (问题)

• What is the empirical formula of a compound with molecular formula C2H6?

背面 (解答)

CH3

#6
正面 (问题)

• What is the empirical formula of a compound with molecular formula C6H6?

背面 (解答)

CH

#7
正面 (问题)

• H What is the mass of 1 mole of sodium chloride, NaCl?

背面 (解答)

58.5 g

#8
正面 (问题)

• H What is the mass of 0.1 mole of sulfur dioxide, SO2?

背面 (解答)

6.4 g

#9
正面 (问题)

• What mass of water should be formed when 2 g of hydrogen reacts with 16 g of oxygen?

背面 (解答)

18 g

#10
正面 (问题)

• What mass of magnesium oxide should be formed when 2.4 g of magnesium reacts with 1.6 g of oxygen?

背面 (解答)

4.0 g

#11
正面 (问题)

• What is meant by the actual yield?

背面 (解答)

the actual amount of product formed in a reaction

#12
正面 (问题)

• What is meant by the theoretical yield?

背面 (解答)

the maximum mass of product calculated from the balanced equation

#13
正面 (问题)

• What is the formula for calculating percentage yield?

背面 (解答)

(actual yield/theoretical yield) × 100%

#14
正面 (问题)

• What is the percentage yield if the actual yield is 60 g and the theoretical yield is 100 g?

背面 (解答)

60%

#15
正面 (问题)

• What is the percentage yield if the actual yield is 5.5 g and the theoretical yield is 10 g?

背面 (解答)

55%

#16
正面 (问题)

• What is the percentage yield if the actual yield is 15 g and the theoretical yield is 20 g?

背面 (解答)

75%

#17
正面 (问题)

• What is the percentage yield if the actual yield is 0.1 g and the theoretical yield is 0.5 g?

背面 (解答)

20%

#18
正面 (问题)

• Give one reason why the actual yield is less than the theoretical yield.

背面 (解答)

incomplete reaction, practical losses or competing reactions

#19
正面 (问题)

• What is the relative formula mass of calcium hydroxide, Ca(OH)2?

背面 (解答)

74

#20
正面 (问题)

• What is the relative formula mass of magnesium nitrate, Mg(NO3)2?

背面 (解答)

148

#21
正面 (问题)

• What is meant by a solute?

背面 (解答)

a substance that dissolves in a liquid

#22
正面 (问题)

• What is meant by a solvent?

背面 (解答)

the liquid that dissolves the solute

#23
正面 (问题)

• How many cm3 are there in 1 dm3?

背面 (解答)

1000

#24
正面 (问题)

• What is the concentration, in g dm-3, of 100 cm3 of a solution containing 2 g of solute?

背面 (解答)

20 g dm-3