It is possible to write simple equations to relate pH, pK, and concentrations (c) of various solutions.
Question:
It is possible to write simple equations to relate pH, pK, and concentrations (c) of various solutions. Three such equations are shown here.
(a) Derive these three equations, and point out the assumptions involved in the derivations.
(b) Use these equations to determine the pH of 0.10 M CH3COOH(aq), 0.10 M NH3(aq), and 0.10 M NaCH3COO(aq).
Verify that the equations give correct results by determining these pH values in the usual way.
Transcribed Image Text:
1 Weak acid: pH = pK₁ - 1log c 1 Weak base: pH = 14.00 --- pKb 2PK₂ Salt of weak acid (pka) and strong base: +=log c 1 1 pH = 14.00 - 2pKw+ Pka + log c
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Lets derive and discuss the three given equations for weak acids weak bases and salts of weak acids and strong bases After that well use these equatio...View the full answer
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Related Book For
General Chemistry Principles And Modern Applications
ISBN: 9780132931281
11th Edition
Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette
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