(a) Calculate the theoretical lattice energy for the salt CaF2. (b) The hydration enthalpy of Ca²+ is –1592 kJ mol-1; the hydration enthalpy of F¯ is –497 kJ mol-. Calculate the enthalpy of precipitation of CaF2. (c) Ignoring entropy effects, use the results of your calculations to predict whether CaF; is soluble or insoluble. Can entropy effects generally safely be ignored in questions like this?

(a) Calculate the theoretical lattice energy for the salt CaF2. (b) The hydration enthalpy of Ca²+ is –1592 kJ mol-1; the hydration enthalpy of F¯ is –497 kJ mol-. Calculate the enthalpy of precipitation of CaF2. (c) Ignoring entropy effects, use the results of your calculations to predict whether CaF; is soluble or insoluble. Can entropy effects generally safely be ignored in questions like this?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.5QAP

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