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 = 2.56*10* 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]

a is the answer

explanation:

which statement about trans-fatty acids is false?

a. the conversion of cis-fatty acids to trans-fatty acids is inhibited by the presence of antioxidants.

hope this

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.