4.2 Reactions of acids

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Question 22

This question is about acids, alkalis, and titrations.

Which ion is produced by acids in aqueous solutions?

$OH−\text{OH}^-$
$H+\text{H}^+$
$Cl−\text{Cl}^-$
$O2−\text{O}^{2-}$

[1]

What is the general name given to the reaction between an acid and a soluble metal hydroxide (alkali)?

Displacement
Neutralisation
Thermal decomposition
Oxidation

[1]

Balance the chemical equation for the reaction between sodium hydroxide ( $NaOH\text{NaOH}$ ) and sulfuric acid ( $H2SO4\text{H}_2\text{SO}_4$ ):

\underline{\quad}\text{NaOH} + \text{H}_2\text{SO}_4 \rightarrow \text{Na}_2\text{SO}_4 + \underline{\quad}\text{H}_2\text{O}

[2]

Sodium hydroxide is a strong alkali. Which of the following is the most likely pH value for a concentrated solution of sodium hydroxide?

$1$
$4$
$7$
$13$

[1]

Which piece of laboratory apparatus should be used to transfer exactly $cm325.0\text{ cm}^3$ of the sodium hydroxide solution into the conical flask?

Volumetric pipette
Measuring cylinder
Glass beaker
Buchner funnel

[1]

Describe the practical procedure a student should follow to perform a titration to determine the exact volume of sulfuric acid needed to neutralise the sodium hydroxide solution, using a burette, a conical flask, and a suitable indicator.

[5]

4.2 Reactions of acids

Question 22

Markscheme

4.2 Reactions of acids

Question 22

Markscheme

4.2 Reactions of acids

Question 22

4.2 Reactions of acids Questions

4.2 Reactions of acids

Question 22

4.2 Reactions of acids Questions