Calculate the enthalpy change when infinitely diluted solution of \( \mathrm{CaCl}_{2} \) and \(....

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Calculate the enthalpy change when infinitely diluted
\( \mathrm{P} \)
solution of \( \mathrm{CaCl}_{2} \) and \( \mathrm{Na}_{2} \mathrm{CO}_{3} \) are mixed. \( \Delta \mathrm{H}_{\mathrm{f}}^{\circ} \) for \( \mathrm{Ca}^{+2}(\mathrm{aq}), \mathrm{CO}_{3}^{-2}(\mathrm{aq}) \) and \( \mathrm{CaCO}_{3}(\mathrm{~s}) \) are -129.80 , \( 161.7,-288.50 \mathrm{kcal} \mathrm{mol}^{-1} \) respectively.


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