a You want to determine the value for the enthalpy of formation of CaSO4(s). Ca(s) + S(s) + 2 O2(g) → CaSO4(s) This reaction cannot be done directly. You know, however, that both calcium and sulfur react with oxygen to produce oxides in reactions that can be studied calorimetrically. You also know that the basic oxide CaO reacts with the acidic oxide SO3 (g) to produce CaSO4 (s) with A, H = -402.7 kJ. Outline a method for determining A, HⓇ for CaSO4(s), and identify the information that must be collected by experiment. Using enthalpy of formation data, confirm that AƒH for CaSO4(s) = -1433.5 kJ/mol. What compound is formed when Ca and O2 react?

a You want to determine the value for the enthalpy of formation of CaSO4(s). Ca(s) + S(s) + 2 O2(g) → CaSO4(s) This reaction cannot be done directly. You know, however, that both calcium and sulfur react with oxygen to produce oxides in reactions that can be studied calorimetrically. You also know that the basic oxide CaO reacts with the acidic oxide SO3 (g) to produce CaSO4 (s) with A, H = -402.7 kJ. Outline a method for determining A, HⓇ for CaSO4(s), and identify the information that must be collected by experiment. Using enthalpy of formation data, confirm that AƒH for CaSO4(s) = -1433.5 kJ/mol. What compound is formed when Ca and O2 react?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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