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Calculate the enthalpy of deprotonation ...

Calculate the enthalpy of deprotonation of HCOOH. (Given that: `K_(a)` value for HCOOH at `20^(@)C` and `30^(@)C` are `1.765xx10^(-4)` and `1.768xx10^(-4)` at `30^(@)C`)

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` 2. 303 log .K_(a_2)/K_(a_1)=(DeltaH)/(R )[(T_(2)-T_(1))/(T_(1)T_(2))]`
`2.303log. (1.768)/(1.765)=(DeltaH)/(8-314)[(10)/(293xx303)]`
`:. DeltaH= 125.37 J`
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