DP Chemistry (last assessment 2024)

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Core » Topic 8: Acids and bases » 8.2 Properties of acids and bases

8.2 Properties of acids and bases

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Directly related questions

20N.3.sl.TZ0.2g: Suggest a risk of using sulfuric acid as the catalyst.
20N.3.sl.TZ0.2g: Suggest a risk of using sulfuric acid as the catalyst.
20N.3.sl.TZ0.g: Suggest a risk of using sulfuric acid as the catalyst.
18M.1.sl.TZ1.20: What are the products of the reaction between sulfuric acid and sodium hydrogen carbonate? A. ...
18M.1.sl.TZ1.20: What are the products of the reaction between sulfuric acid and sodium hydrogen carbonate? A. ...
21N.1.hl.TZ0.26: What is a possible value of pH at the equivalence point in the titration of a strong acid with a...
21N.1.hl.TZ0.26: What is a possible value of pH at the equivalence point in the titration of a strong acid with a...
22M.1.hl.TZ2.24:
What happens to the amount of hydroxide ions and hydroxide ion concentration when water is added to a solution of NH₃(aq)?
22M.1.hl.TZ2.24:
What happens to the amount of hydroxide ions and hydroxide ion concentration when water is added to a solution of NH₃(aq)?
22M.2.hl.TZ1.1d(iv):
Deduce, giving reasons, whether the reaction of magnesium nitride with water is an acid–base reaction, a redox reaction, neither or both.
22M.2.hl.TZ1.1d(iv):
Deduce, giving reasons, whether the reaction of magnesium nitride with water is an acid–base reaction, a redox reaction, neither or both.
22M.2.hl.TZ1.d(iv):
Deduce, giving reasons, whether the reaction of magnesium nitride with water is an acid–base reaction, a redox reaction, neither or both.
17N.3.sl.TZ0.2a:
State an equation for the reaction of magnesium hydroxide with hydrochloric acid.
17N.3.sl.TZ0.2a:
State an equation for the reaction of magnesium hydroxide with hydrochloric acid.
17N.3.sl.TZ0.a:
State an equation for the reaction of magnesium hydroxide with hydrochloric acid.
18M.2.hl.TZ2.2d.iii:
Outline, using an equation, why sodium ethanoate is basic.
18M.2.hl.TZ2.2d.iii:
Outline, using an equation, why sodium ethanoate is basic.
18M.2.hl.TZ2.d.iii:
Outline, using an equation, why sodium ethanoate is basic.
18M.1.sl.TZ2.19:
Activity series of selected elements:

${\text{greatest activity}}\xleftarrow{{{\text{K, Ca, Al, Fe, H, Cu, Ag, Au}}}}{\text{least activity}}$

Which react with dilute sulfuric acid?

I. Cu

II. CuO

III. CuCO₃

A. I and II only

B. I and III only

C. II and III only

D. I, II and III
18M.1.sl.TZ2.19:
Activity series of selected elements:

${\text{greatest activity}}\xleftarrow{{{\text{K, Ca, Al, Fe, H, Cu, Ag, Au}}}}{\text{least activity}}$

Which react with dilute sulfuric acid?

I. Cu

II. CuO

III. CuCO₃

A. I and II only

B. I and III only

C. II and III only

D. I, II and III
18N.2.sl.TZ0.6c: State the formula of the salt formed when butanoic acid reacts with ethylamine.
18N.2.sl.TZ0.6c: State the formula of the salt formed when butanoic acid reacts with ethylamine.
18N.2.sl.TZ0.c: State the formula of the salt formed when butanoic acid reacts with ethylamine.
19M.1.hl.TZ1.25:
With which do most acids react?

   I. sodium hydrogen carbonate
   II. magnesium
   III. calcium sulfate

A. I and II only

B. I and III only

C. II and III only

D. I, II and III
19M.1.hl.TZ1.25:
With which do most acids react?

   I. sodium hydrogen carbonate
   II. magnesium
   III. calcium sulfate

A. I and II only

B. I and III only

C. II and III only

D. I, II and III
19N.3.sl.TZ0.16b:
An antacid contains calcium carbonate and magnesium carbonate.

Write the equation for the reaction of magnesium carbonate with excess stomach acid.
19N.3.sl.TZ0.16b:
An antacid contains calcium carbonate and magnesium carbonate.

Write the equation for the reaction of magnesium carbonate with excess stomach acid.
19N.3.sl.TZ0.b:
An antacid contains calcium carbonate and magnesium carbonate.

Write the equation for the reaction of magnesium carbonate with excess stomach acid.
20N.1.sl.TZ0.19:
Which substance will not produce copper(II) chloride when added to dilute hydrochloric acid?

A.   $Cu (s)$

B.   $Cu (OH)_{2} (s)$

C.   ${CuCO}_{3} (s)$

D.   $CuO (s)$
20N.1.sl.TZ0.19:
Which substance will not produce copper(II) chloride when added to dilute hydrochloric acid?

A.   $Cu (s)$

B.   $Cu (OH)_{2} (s)$

C.   ${CuCO}_{3} (s)$

D.   $CuO (s)$
20N.2.hl.TZ0.5c:
State the $K_{a}$ expression for ethanoic acid.
20N.2.hl.TZ0.5c:
State the $K_{a}$ expression for ethanoic acid.
20N.2.hl.TZ0.c:
State the $K_{a}$ expression for ethanoic acid.
20N.2.hl.TZ0.5f(i): Potassium hydroxide solutions can react with carbon dioxide from the air. The solution was made...
20N.2.hl.TZ0.5f(i): Potassium hydroxide solutions can react with carbon dioxide from the air. The solution was made...
20N.2.hl.TZ0.f(i): Potassium hydroxide solutions can react with carbon dioxide from the air. The solution was made...
20N.2.hl.TZ0.5f(ii):
Potassium hydroxide solutions can react with carbon dioxide from the air. The solution was made one day prior to using it in the titration.

Predict, giving a reason, the effect of this error on the calculated concentration of ethanoic acid in 5(e).
20N.2.hl.TZ0.5f(ii):
Potassium hydroxide solutions can react with carbon dioxide from the air. The solution was made one day prior to using it in the titration.

Predict, giving a reason, the effect of this error on the calculated concentration of ethanoic acid in 5(e).
20N.2.hl.TZ0.f(ii):
Potassium hydroxide solutions can react with carbon dioxide from the air. The solution was made one day prior to using it in the titration.

Predict, giving a reason, the effect of this error on the calculated concentration of ethanoic acid in 5(e).
20N.3.sl.TZ0.2d:
An additional experiment was conducted in which only the sulfuric acid catalyst was titrated with $NaOH (aq)$ . Outline why this experiment was necessary.
20N.3.sl.TZ0.2d:
An additional experiment was conducted in which only the sulfuric acid catalyst was titrated with $NaOH (aq)$ . Outline why this experiment was necessary.
20N.3.sl.TZ0.d:
An additional experiment was conducted in which only the sulfuric acid catalyst was titrated with $NaOH (aq)$ . Outline why this experiment was necessary.
22M.2.sl.TZ1.1d(iii):
Deduce, giving reasons, whether the reaction of magnesium nitride with water is an acid–base reaction, a redox reaction, neither or both.
22M.2.sl.TZ1.1d(iii):
Deduce, giving reasons, whether the reaction of magnesium nitride with water is an acid–base reaction, a redox reaction, neither or both.
22M.2.sl.TZ1.d(iii):
Deduce, giving reasons, whether the reaction of magnesium nitride with water is an acid–base reaction, a redox reaction, neither or both.
22N.1.sl.TZ0.19: Equal volumes of 0.10 mol dm−3 weak acid and strong acid are titrated with 0.10 mol dm−3 NaOH...
22N.1.sl.TZ0.19: Equal volumes of 0.10 mol dm−3 weak acid and strong acid are titrated with 0.10 mol dm−3 NaOH...

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