Unit 1-Neutralisation

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Total cards: 23•Content version: v4•Public deck•Updated: 8/1/2026

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Front (Question)

What is a neutralisation reaction?

Back (Answer)

A reaction where an acid and a base form a salt and water

Front (Question)

What happens to pH during neutralisation?

Back (Answer)

It moves towards pH 7

Front (Question)

Acid + metal oxide → ?

Back (Answer)

Salt + water

Front (Question)

Acid + metal hydroxide → ?

Back (Answer)

Salt + water

Front (Question)

Acid + metal carbonate → ?

Back (Answer)

Salt + water + carbon dioxide

Front (Question)

How do you name the salt formed?

Back (Answer)

Metal from base + ending from acid (chloride, sulfate, nitrate)

Front (Question)

What salt does hydrochloric acid form?

Back (Answer)

Chlorides

Front (Question)

What salt does sulfuric acid form?

Back (Answer)

Sulfates

Front (Question)

What salt does nitric acid form?

Back (Answer)

Nitrates

#10

Front (Question)

What are spectator ions?

Back (Answer)

Ions unchanged during the reaction

#11

Front (Question)

Ionic equation for metal hydroxide neutralisation

Back (Answer)

H+(aq) + OH-(aq) → H2O(l)

#12

Front (Question)

Ionic equation for metal oxide neutralisation

Back (Answer)

2H+(aq) + O2-(aq) → H2O(l)

#13

Front (Question)

Ionic equation for metal carbonate neutralisation

Back (Answer)

2H+(aq) + CO32+(aq) → H2O(l) + CO2(g)

#14

Front (Question)

What is the purpose of a titration?

Back (Answer)

To find an unknown concentration using neutralisation

#15

Front (Question)

What apparatus is used in a titration?

Back (Answer)

Burette, pipette, pipette filler, conical flask

#16

Front (Question)

Which titres are used for the average?

Back (Answer)

Concordant titres (within 0.2 cm3)

#17

Front (Question)

What is the key relationship in titration calculations?

Back (Answer)

n = c × V

#18

Front (Question)

What must you always use before calculating?

Back (Answer)

A balanced equation

#19

Front (Question)

What can titration calculations find?

Back (Answer)

Unknown concentration or unknown volume

#20

Front (Question)

Given 25.0 cm3 of 0.2 mol l-1 NaOH reacts with 20.0 cm3 of HCl, find the concentration of HCl. NaOH + HCl → NaCl + H2O

Back (Answer)

Number of moles of NaOH = concentration x volume n = 0.2 x 0.025 = 0.005 moles. 1:1 ratio therefore 0.005 moles of HCl needed. concentration = number of moles ÷ volume c = 0.005 ÷ 0.02 = 0.25 mol l-1

#21

Front (Question)

13.3 cm3 of 0.5 mol l-1 H2SO4 reacted fully with 0.89 mol l-1 NaOH, find the volume of NaOH needed. 2NaOH + H2SO4 → Na2SO4 + H2O

Back (Answer)

Number of moles of H2SO4 = concentration x volume n = 0.5 x 0.0133 = 0.00665 moles. 1: 2 ratio therefore 0.0133 moles of NaOH needed. volume = number of moles ÷ concentration V = 0.0133÷ 0.89 = 0.015 l or 15 cm3

#22

Front (Question)

How do you prepare a soluble salt using titration?

Back (Answer)

Repeat the titration without indicator, then evaporate to dryness

#23

Front (Question)

How do you prepare a soluble salt using an insoluble base?

Back (Answer)

Add excess base → filter → evaporate filtrate to dryness