Which of the following is the correct definition for a strong acid?Partially dissociates into ions when dissolved in water and the change is reversiblePartially dissociates into ions when dissolved in water and the change is not reversibleFully dissociates into ions when dissolved in water and the change is not reversibleFully dissociates into ions when dissolved in water and the change is reversible2Which of the following is a strong acid?Nitric acidCitric acidCarbonic acidEthanoic acid3Which of the following is the correct balanced equation showing the dissociation of sulfuric acid into ions?HSO4 (aq) → H+(aq) + SO4–(aq)H2SO4 (aq) → 2H+ (aq) + SO42- (aq)H2SO4 (aq) ⇌ 2H+ (aq) + SO42- (aq)H2SO4 (aq) → H+ (aq) + SO4–(aq)4Which of the following is the correct balanced equation showing the dissociation of carbonic acid into ions?CO2(aq) + H2O(l) → 2H+(aq) + CO32-(aq)2CO2(aq) + H2O(l) ⇌ 2H+(aq) + 2CO32-(aq)CO2(aq) + H2O(l) ⇌ 2H+(aq) + CO32-(aq)CO2(aq) + H2O(l) ⇌ H+(aq) + CO32-(aq)5Which of the following statements is not true?If the H+ ion concentration in a solution increases by a factor of 10, the pH of the solution increases by 1A high concentration of H+ ions in an acidic solution means a low pHStrong acids have a low pHDilute acids have a low number of H+ ions per dm3 of solution6An acid of concentration 1 mol/dm3 has a pH of 2. The acid is diluted to a concentration of 0.01 mol/dm3. What is its new pH?4231
Question
Which of the following is the correct definition for a strong acid?Partially dissociates into ions when dissolved in water and the change is reversiblePartially dissociates into ions when dissolved in water and the change is not reversibleFully dissociates into ions when dissolved in water and the change is not reversibleFully dissociates into ions when dissolved in water and the change is reversible2Which of the following is a strong acid?Nitric acidCitric acidCarbonic acidEthanoic acid3Which of the following is the correct balanced equation showing the dissociation of sulfuric acid into ions?HSO4 (aq) → H+(aq) + SO4–(aq)H2SO4 (aq) → 2H+ (aq) + SO42- (aq)H2SO4 (aq) ⇌ 2H+ (aq) + SO42- (aq)H2SO4 (aq) → H+ (aq) + SO4–(aq)4Which of the following is the correct balanced equation showing the dissociation of carbonic acid into ions?CO2(aq) + H2O(l) → 2H+(aq) + CO32-(aq)2CO2(aq) + H2O(l) ⇌ 2H+(aq) + 2CO32-(aq)CO2(aq) + H2O(l) ⇌ 2H+(aq) + CO32-(aq)CO2(aq) + H2O(l) ⇌ H+(aq) + CO32-(aq)5Which of the following statements is not true?If the H+ ion concentration in a solution increases by a factor of 10, the pH of the solution increases by 1A high concentration of H+ ions in an acidic solution means a low pHStrong acids have a low pHDilute acids have a low number of H+ ions per dm3 of solution6An acid of concentration 1 mol/dm3 has a pH of 2. The acid is diluted to a concentration of 0.01 mol/dm3. What is its new pH?4231
Solution
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The correct definition for a strong acid is: Fully dissociates into ions when dissolved in water and the change is not reversible.
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Nitric acid is a strong acid.
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The correct balanced equation showing the dissociation of sulfuric acid into ions is: H2SO4 (aq) → 2H+ (aq) + SO42- (aq)
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The correct balanced equation showing the dissociation of carbonic acid into ions is: CO2(aq) + H2O(l) ⇌ H+(aq) + CO32-(aq)
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The statement that is not true is: If the H+ ion concentration in a solution increases by a factor of 10, the pH of the solution increases by 1.
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If an acid of concentration 1 mol/dm3 has a pH of 2 and the acid is diluted to a concentration of 0.01 mol/dm3, its new pH is 4.
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