Calculate the enthalpy change when infinitely solution of CaCl_(2) and – InterviewSolution

1.	Calculate the enthalpy change when infinitely solution of CaCl_(2) and Na_(2)CO_(3) are mixed Delta_(f)H^(@) for Ca^(2+)(aq, CO_(3)^(2-) (aq) and CaCO_(3) (s) are -129.80, -161.65, -288.5" kCal mol"^(-1) respectively.
Answer» SOLUTION :`CA^(+2) + CO_(3)^(-2) rarr CaCO_(3)` `Delta H = - 288.5 - [-129.8 - 161.65] = 2.95 KCAL`

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