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Heat of neutralisation of H2C2O4 (oxalic...

Heat of neutralisation of `H_2C_2O_4` (oxalic acid) is `-26 "kcal mol"^(-1)`. Hence, dissociation energy of `H_(2)C_(2)O_(4)

A

`12.3 "kcal mol"^(-1)`

B

`1.4 "kcal mol"^(-1)`

C

`-13.7 "kcal mol"^(-1)`

D

`-1.4 "kcal mol"^(-1)`

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The correct Answer is:
B
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Heat of neutralization between HCl and NaOH is -13.7 kcal "equiv"^(–1) . Heat of neutralization of H_2C_2O_4 (oxalic acid) with NaOH is -26 kcal mol^(-1) . Hence, heat of dissociation of H_(2)C_(2)O_(4) as H_2C_2O_(4) rarr 2H^(+) + C_(2)O_(4)^(2-) , is :

Heat of neutralisation of oxalic acid is -106.7 KJ mol^(-1) using NaOH hence Delta H of : H_(2)C_(2)O_(4)rarr C_(2)O_(4)^(2-)+2H^(+) is :-

The enthalpy of neutralization of oxitic acid by strong acid is 25.4 kcal mol^(-1) . The enthalpy of neutralization of strong acid and strong base is -13.7 kcal equil^(-1) . The enthalpy of dissociation of H_(2)C_(2)O_(4)hArr2H^(+)+C_(@)O_(4)^(2-) is

The heat of neutralisation of oxalic acid is -25.4 kcal mol^(-1) using strong base, NaOH . Hence, the enthaly change of the process is H_(2)C_(2)O_(4) hArr 2H^(o+) +C_(2)O_(4)^(2-) is

The enthalpy of the reaction : H_(2)O_(2)(l)toH_(2)O(l)+(1)/(2)O_(2)(g) is -23.5 kcal mol^(-1) and the enthalpy of formation of H_(2)O(l) is -68.3 kcal mol^(-1) . The enthalpy of formation of H_(2)O_(2)(l) is

The enthalpy of the reaction H_(2)O_(2) ("?") to H_(2) O ("?") + 1//2 O_(2) (g) is -23.5 kcal mol^(-1) and the enthalpy of formation of H_(2) O (?) is -68.3 kcal mol^(-1) . The enthalpy of formation of H_(2) O_(2) (?) is -

The enthaply at 298K of the reaction H_(2)O_(2)(l)rarr+(1)/(2)O_(2)(g) is -23.5Kcal mol^(-1) and the enthaply of formation of H_(2)O_(2)(l) is -44.8Kcal mol^(-1) . The enthaply of formatiom of H_(2)O(l) is

Statement-I : The enthalpy of neutralization of the reaction between HCl and NaOH is -13.7 kCal/mol. If the enthalpy of neutralization of oxalic acid (H_(2)C_(2)O_(4)) by a strong base is -25.4 kCal/mol, then the enthalpy change (|Delta_(r)H|) of the process H_(2)C_(2)O_(4) rarr 2H^(+)+C_(2)O_(4)^(2-) is 11.7 kCal/mol. Statement-II : H_(2)C_(2)O_(4) is a weak acid.

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