Chemistry, 05.05.2021 20:00 michaela134

Q36(a) Look carefully at each of the following compounds and state whether or not it can exhibit geometrical isomerism. State the structural features that are necessary for
the existence of this type of isomerism:
i)
(CH3)2C=CH
ii)
CHCI=CHCI
[4 marks]
Q36(b) HA is a weak acid, with a dissociation constant value of K = 2.5610 mol dm3
i)
Write an expression for the acid dissociation constant, Ka, of HA.
[1 mark]
ii) Calculate the hydrogen ion concentration and pH of a solution of HA
containing 4.25x10-3 mol dmState what assumption is made in the
calculation.
[5 marks]
[Total=10 marks]

Answers: 3

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