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WorksheetsHeat Of Neutralisation
Total questions: 11
Worksheet time: 11mins
Products of a neutralisation reaction are always
an acid and a base
an acid and a salt
salt and water
salt and base
What sort of reaction happens when an acid and an alkali are mixed?
Neutralisation
Combination
Acidifying
Displacement
H2SO4 + KOH -->
Neutralisation reactions
endothermic
exothermic
The formulae of the salt formed when sulfuric acid reacts with aluminium hydroxide is...
Al2(SO4)3
Al3(SO4)2
AlSO4
Al2SO4
Which of the following neutralisation reactions releases the least heat?
1 mol of HCl (aq) + 1 mol NH3(aq)
1 mol of CH3COOH (aq) + 1 mol of NH3(aq)
1 mol of CH3COOH + 1 mol of KOH(aq)
1 mol of HCl(aq) + 1 mol of NaOH(aq)
When 50 cm3 of 1.5 mol dm-3 HCl is added to 100 cm3 of 1.5 mol dm-3 sodium hydroxide solution, x kJ of heat is produced. When 45 cm3 of sulphuric acid is added to 100 cm3 1.5 mol dm-3 sodium hydroxide, the same amount of heat is produced. What is the concerntration of sulphuric acid?
0.2 mol dm-3
0.4 mol dm-3
0.8 mol dm-3
1.5 mol dm-3
The heat of neutralisation between hydrocloric acid and sodium hydroxide is -57 kJ mol-1. What is the heat energy released, when 500 cm3 0f 2.0 mol dm-3 sulphuric acid reacts with excess potassium hydroxide.
-0.5 x 57 kJ
-57 kJ
-2 x 57 kJ
-4 x 57 kJ
Which are the following pairs of acid and alkali will produce the lowest temperature change when mixed together? (All the acids and alkalies have the same concerntration of 1.0 mol dm-3)
100 cm3 of HCl and 25 cm3 of NaOH
200 cm3 of HCl and 25 cm3 of NaOH
100 cm3 of CH3COOH and 25 cm3 of NaOH
200 cm3 of CH3COOH and 25 cm3 of NaOH
What is the meaning of heat of neutralization?
The heat cis given out when 1 mol of water is formed from the reaction between acid and alkali
The heat is given out when 1 mol of salt is formed from the reaction between acid and alkali
The heat absorbed when acid reacts with an alkali
The heat released when acid reacts with an alkali
The thermochemical equation represents the reaction between nitric acid and potassium hydroxide solution.
HNO3 + KOH → KNO3 + H2O ΔH = - 57 kJ mol-1
What is the heat released when 50 cm3 2.0 mol dm-3 nitric acid is added to 25 cm3 2.0 mol dm-3 potassium hydroxide?
2.85 kJ
5.70 kJ
11.40 kJ
57.00 kJ
