= 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
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter16: Acids And Bases
Section: Chapter Questions
Problem 19QAP: . How is the strength of an acid related to the fact that a competition for protons exists in...
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