The thermogram in Figure below shows the change in mass of a sample of Copper sulfate pentahydrate, CuSO+5H2O (249.5 g/mole) as a function of temperature. The original sample weighing 25.0 mg was heated from room temperature to 1000°C at a rate of 5° C per minute. The following changes in mass and corresponding temperature ranges were observed : Loss of 1.80 mg from 100 – 250° C. Loss of 7.212 mg from 350 – 550° C., Loss of 8.015 mg from 600 – 800° C. Determine the identities of the volatilization products and the solid residue at each step of the thermal decomposition.

The thermogram in Figure below shows the change in mass of a sample of Copper sulfate pentahydrate, CuSO+5H2O (249.5 g/mole) as a function of temperature. The original sample weighing 25.0 mg was heated from room temperature to 1000°C at a rate of 5° C per minute. The following changes in mass and corresponding temperature ranges were observed : Loss of 1.80 mg from 100 – 250° C. Loss of 7.212 mg from 350 – 550° C., Loss of 8.015 mg from 600 – 800° C. Determine the identities of the volatilization products and the solid residue at each step of the thermal decomposition.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 5.101QE: In the 1880s, Frederick Trouton noted that the enthalpy of vaporization of 1 mol pure liquid is...

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