**Part A****Question:** Which acid is the best choice to create a buffer with \( \text{pH} = 7.38 \)?**Options:**- Nitrous acid (\(\text{HNO}_2\)), \(pK_a = 3.34\) - Hypochlorous acid (\(\text{HClO}\)), \(pK_a = 7.54\) - Acetic acid (\(\text{HCH}_3\text{CO}_2\)), \(pK_a = 4.76\) - Chlorous acid (\(\text{HClO}_2\)), \(pK_a = 1.95\)**Submit Button:** - "Submit" button to confirm the selection.- "Request Answer" link for feedback or hints.**Part B** - Complete previous part(s).**Explanation:**In order to select the best acid for creating a buffer with a desired pH, choose the acid with a \( pK_a \) value close to the desired pH. This ensures the buffer can effectively neutralize both added acids and bases, maintaining stability around the target pH.For this question, hypochlorous acid (\(\text{HClO}\)) with a \( pK_a \) closest to 7.38 will be the most suitable choice.

to choose the best buffer, pick out that weak acid whose pKa is close to the pH of the buffer.

Which acid is the best choice to create a buffer with pH=7.38? %3D nitrous acid (HNO2), pKa = 3.34 O hypochlorous acid (HCIO), pKa =7.54 O acetic acid (HCH3CO2), pKa = 4.76 O chlorous acid (HC1O2), pKa = 1.95

Which acid is the best choice to create a buffer with pH=7.38? %3D nitrous acid (HNO2), pKa = 3.34 O hypochlorous acid (HCIO), pKa =7.54 O acetic acid (HCH3CO2), pKa = 4.76 O chlorous acid (HC1O2), pKa = 1.95

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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