State the change in enthalpy is negligible

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Reference no: EM13169353

Consider the following data for questions 1-6: Two solution of an unknown slightly soluble salt, A(OH)2, were allowed to equilibrate- one at 25 degrees Celsius and the other at 80 degrees celsius. A 15.00 mL aliquot of each solution is titrated with 0.200 M HCL. 8.00 mL of the acid is required to reach the endpoint of the tiration at 25 degress celsius, while 69.15 mL are required for the 80 degrees Celsius solution.

1. Calculate the Ksp^a+ at 25 degrees celsius.

2. Calculate the Ksp at 80 degrees celsius.

3. Calculate the gibbs free energy ( in kJ/mol) at 25 degrees celsius

4. Calculate the Gibbs free energy (in kJ/mol) at 80 degrees celsius.

5. Assuming that the change in enthalpy is negligible over this temperature range, calculate delta H.

6. Assuming that the change in entropy in negligible over this temperauter range, calculate delta S.

Reference no: EM13169353

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