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WorksheetsStrength of Acids and Bases Worksheet
Total questions: 10
Worksheet time: 11mins
Which of the following solutions has the highest pH value?
Ethanoic acid, 0.01 mol dm–3
Hydrochloric acid, 0.01 mol dm–3
Aqueous ammonia, 0.01 mol dm–3
Sodium hydroxide solution, 0.01 mol dm–3
True or false: bases are sometimes called alkaline.
True
False
Ethanoic acid is a weak acid because
it is an organic acid.
it dissolves slightly in water.
it is a weak conductor of electricity.
it ionises partially to form hydrogen ions in water.
Sulphuric acid is known as a diprotic acid because
there are two hydrogen atoms in one molecule of sulphuric acid.
one mole of sulphuric acid contains two moles of hydrogen atoms.
one mole of sulphuric acid dissociates into two moles of hydrogen ions in water.
sulphuric acid can be neutralised by two types of bases.
A chemical that dissociates completely in water to produce hydroxide ions is a
strong acid
weak acid
strong alkali
weak alkali
Calculate the pH value of 0.01moldm-3 H2SO4
3
1
2
0
Which of the following statements is true of both nitric acid and sulphuric acid?
Both are organic acids.
Both are diprotic acids.
Both undergo complete dissociation in water.
Both react with copper to produce hydrogen gas.
Which of the following is true when water is added to an aqueous sodium hydroxide solution?
The pH value decreases.
The degree of ionisation decreases.
The hydroxide ion concentration increases.
The alkalinity increases.
Which of the following substances can change red litmus paper to blue when dissolved in water?
Carbon dioxide gas
Glacial ethanoic acid
Solid sodium oxide
Solid sodium sulphate
Which of the following particles in a solution of ammonia is responsible for its alkaline properties?
NH3
OH–
H+
NH4+
