The article “Enthalpies and Entropies of Transfer of
Chapter 8, Problem 12SE(choose chapter or problem)
The article “Enthalpies and Entropies of Transfer of Electrolytes and Ions from Water to Mixed Aqueous Organic Solvents” (G. Hefter, Y. Marcus, and W. Waghorne, Chemical Reviews, 2002:2773–2836) presents measurements of entropy and enthalpy changes for many salts under a variety of conditions. The following table presents the results for entropies of transfer (in \(\mathrm {J/K \cdot mol}\)) from water to water + methanol of NaCl (table salt) over a range of concentrations
of methanol:
a. Fit polynomial models of degrees 1, 2, and 3 to predict the entropy \((y)\) from the concentration \((x)\).
b. Which degree polynomial is the most appropriate? Explain.
c. Using the most appropriate model, find 99% confidence intervals for the coefficients.
Equation Transcription:
Text Transcription:
J/K{cdot}mol
(y)
(x)
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