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Find the p H of a 0.439 M N a A solution. The salt completely dissociates intoNaus and Anus, N a is the cation of a strong base so it will not affect the p H of the solution. Anus is the anion of the weak acid H A. The Ka of HAis 19E-5. If the 5% rule is valid you may apply it.

Find the p H of a 0.439 M N a A solution. The salt completely dissociates intoNaus and Anus, N a is the cation of a strong base so it will not affect the p H of the solution. Anus is the anion of the weak acid H A. The Ka of HAis 19E-5. If the 5% rule is valid you may apply it.

Chemistry
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
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Find the p H of a 0.439 MNa A solution. The salt completely dissociates into N and A Na is the cation of a strong base so it will not affect the p Hof the solution. Anus CO is the anion of the weak acid H A. The Ka of H A is 1.9E-5, If the 5% rule is valid you may apply it.
Transcribed Image Text:Find the p H of a 0.439 MNa A solution. The salt completely dissociates into N and A Na is the cation of a strong base so it will not affect the p Hof the solution. Anus CO is the anion of the weak acid H A. The Ka of H A is 1.9E-5, If the 5% rule is valid you may apply it.
Expert Solution
Step 1

Pka= -logka

Use formula of PH of salt which is mixture of strong base and weak acid.

PH=9.32

 

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