Question

The enthalpy of neutralisation of a weak acid
in 1M solution with a strong base is - 56.1
KJ/mol. If the enthalpy ofionisation of acid
is 1.5 KJ mol-1 and enthalpy of
neutralisation of the acid with a strong base
is -57.3KJ.eq'.what is the % ionisation of
the weak acid initially in molar solution
1) 25 2) 20 3) 15 4) 10

Please tell it fast I will give 50 points​

Answer 1

Answer:

ANSWER

Ideally, the enthalpy of neutralization should be - 57.3 K.J + 1.5 K.J = - 55.8 KJ.

But it is - 56.1 KJ.

∴ Energy used for neutralization = 57.3 - 56.1 = 1.2 KJ

∴ Percent ionization of weak acid =

1.5

1.5−1.2

×100= 20%

∴ % of week acid in solution = 20%

Answer 2

Explanation:

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Answer♡

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