4.74=For HC1O2 /KC102, pKa = 1.96; for HC10/KCIO, pKa = 7.54; and, for NH;MISSED THIS? Read Section 18.3(Pages 799 - 802) .pKa14.00 – pKbThe following table shows the values of ionization14.00 – 4.754constants for a number of acids and bases at 259.25°C:So, HC1O/KCIO is the best choice to create a buffer with pH = 7.30 because HC|FormulaKavalue that is closest to 7.30.|НС2 Н3О2 | 1.8х 10 3-5HC1O21.1 × 10-2NH31.76 x 10-5Part BHC1O2.9 x 10-8For the best system, calculate the ratio of the masses of the buffer components required to maExpress your answer to two significant figures.m(KC1O)= 41.62m(HC10)SubmitPrevious Answers Request Answer* Incorrect; Try Again; 3 attempts remaining

Answered: Image /qna-images/answer/8722271d-3efd-4575-a5bc-670bbefaa886.jpg

= 4.74 For HCIO2/KCIO2 , pKa = 1.96; for HC10/KC10, pKa = 7.54; and, for NH; MISSED THIS? Read Section 18.3 (Pages 799 - 802). pKa 14.00 — рКъ 14.00 – 4.754 The following table shows the values of ionization constants for a number of acids and bases at 25 9.25 °C: So, HC1O/KCIO is the best choice to create a buffer with pH = 7.30 because HC Formula Ka value that is closest to 7.30. HC,H3 O2 1.8 × 10-5 HCIO2 1.1 x 10-2 NH3 1.76 × 10–5 Part B HC1O 2.9 x 10-8 For the best system, calculate the ratio of the masses of the buffer components required to ma Express your answer to two significant figures. ? m(KCIO) m(HC10) 41.62 Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining

= 4.74 For HCIO2/KCIO2 , pKa = 1.96; for HC10/KC10, pKa = 7.54; and, for NH; MISSED THIS? Read Section 18.3 (Pages 799 - 802). pKa 14.00 — рКъ 14.00 – 4.754 The following table shows the values of ionization constants for a number of acids and bases at 25 9.25 °C: So, HC1O/KCIO is the best choice to create a buffer with pH = 7.30 because HC Formula Ka value that is closest to 7.30. HC,H3 O2 1.8 × 10-5 HCIO2 1.1 x 10-2 NH3 1.76 × 10–5 Part B HC1O 2.9 x 10-8 For the best system, calculate the ratio of the masses of the buffer components required to ma Express your answer to two significant figures. ? m(KCIO) m(HC10) 41.62 Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining

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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