(a) Interpretation: The purpose of a buffer solution should be explained. Concept Introduction: Buffer solutions are important to living organisms whose cells are functional only in a narrow pH range. For example, pH of the human blood should be maintained between 7.35 to 7 .45 and it is maintained by several pH systems in human body. Mainly blood pH is maintained by HCO 3 -.
(a) Interpretation: The purpose of a buffer solution should be explained. Concept Introduction: Buffer solutions are important to living organisms whose cells are functional only in a narrow pH range. For example, pH of the human blood should be maintained between 7.35 to 7 .45 and it is maintained by several pH systems in human body. Mainly blood pH is maintained by HCO 3 -.
Solution Summary: The author explains that buffer solutions are important to living organisms whose cells are functional only in a narrow pH range.
The purpose of a buffer solution should be explained.
Concept Introduction:
Buffer solutions are important to living organisms whose cells are functional only in a narrow pH range. For example, pH of the human blood should be maintained between 7.35 to 7.45 and it is maintained by several pH systems in human body. Mainly blood pH is maintained by HCO3 -.
Interpretation Introduction
(b)
Interpretation:
Substances that make up a buffered solution should be described.
Concept Introduction:
Buffer solutions are important to living organisms whose cells are functional only in a narrow pH range. For example, pH of the human blood should be maintained between 7.35 to 7.45 and it is maintained by several pH systems in human body. Mainly blood pH is maintained by HCO3 -.
Interpretation Introduction
(c)
Interpretation:
How a buffered solution works should be explained?
Concept Introduction:
Buffer solutions are important to living organisms whose cells are functional only in a narrow pH range. For example, pH of the human blood should be maintained between 7.35 to 7.45 and it is maintained by several pH systems in human body. Mainly blood pH is maintained by HCO3 -.
a. The change in the Gibbs energy of a certain constant pressure process is found to fit the expression:
AG-85.1 J mol −1 +36.5 J mol ¹K-1 × T
A. Calculate the value of AS for the process.
B. Next, use the Gibbs-Helmholtz equation:
(a(AG/T))
ΔΗ
-
T2
to calculate the value of AH for the process.
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