Question

the heat of neutralisation of HCl by NaOH is -55.9Kj/mole. if the heat of neutralisation of HCN by NaOH is -12.1kJ/ mole the energy of dissociation of HCN is.please help​

Answer 1

Answer:

according to question :-

heat of neutralisation of HCl by NaOH = -55.9kj/mole

and heat of neutralisation of HCl by NaOH = -12.1kj/mole

then

dissociation of HCL = -55.9-(-12.1)

= -55.9+12.1 = 68 kj/mole

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