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Chemistry
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Chemistry
Heat of Reaction (5)
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Heat of Reaction (5)
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Steps to calculate the heat of displacement of iron, Fe from its salt solution
Step 2: Calculate the number of moles of iron, Fe displaced from iron(II) sulphate, FeSO4 solution
Steps to calculate the heat of displacement of iron, Fe from its salt solution
Step 3: Calculate the heat change
Steps to calculate the heat of displacement of iron, Fe from its salt solution
Step 4: Calculate the heat change for 1 mole of iron, Fe displaced
Steps to calculate the heat of displacement of iron, Fe from its salt solution
Step 5: Write the heat of displacement, ∆H
Neutralisation (1)
Is a reaction between an acid and an alkali to produce only salt and water
Type of reaction of neutralisation
Exothermic reaction
Neutralisation (2)
Occur when hydrogen ions, H+ from acid reacts with hydroxide ions, OH− from alkali to form water, H2O molecules
Definition of the heat of neutralisation
The heat of neutralisation is the heat change when one mole of water is formed from the reaction between an acid and an alkali
The ionic equation for neutralisation
H+(aq) + OH−(aq) → H2O(l)
Neutralisation reactions can occur between acids and alkalis of different strengths as follows (1)
Strong acid and strong alkali
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Heat of Reaction (5)
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