a. Why is the enthalpy change of hydration always exothermic? b. Write equations to represent: i. The

Question:

a. Why is the enthalpy change of hydration always exothermic?

b. Write equations to represent:

i. The hydration of a sodium ion

ii. The hydration of a chloride ion.

c. Draw diagrams to show:

i. 4 water molecules hydrating a magnesium ion

ii. 2 water molecules hydrating a bromide ion.

Show the dipole on each water molecule.

d. Explain why the value of ΔH^Q_hydfor magnesium ions is much more exothermic than ΔH^Q_hydfor potassium ions.

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Cambridge International AS And A Level Chemistry Coursebook

ISBN: 9781316637739

2nd Edition

Authors: Lawrie Ryan, Roger Norris

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Question Posted: Sep 22, 2021 02:37 AM

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a. Why is the enthalpy change of hydration always exothermic? b. Write equations to represent: i. The

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a The enthalpy change of hydration is always exothermic because the water molecules are attracted to ...View the full answer

Cambridge International AS And A Level Chemistry Coursebook

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