28. K, (Alloxanic acid) = 2.3 x 10 and K, (HF) = 6.8 x 104. Consider the following two aqueous mixtures: Solution (1): mixing 50.0 mL each of 0.25-M Alloxanic acid and 0.25-M NAOH. Solution (2): mixing 50.0 mL each of 0.25-M HF and 0.25-M NAOH. Part 1. Which of the above mixtures does have a higher pH after the solutions reach equilibrium? b) Solution (2) c) same pH for both solutions d) insufficient information. a) Solution (1) Part 2. Which of the above two mixtures in Part 1 does have pH > 7 at equilibrium? a) Solution (1) b) Solution (2) c) both solutions d) neither of the two solutions

28. K, (Alloxanic acid) = 2.3 x 10 and K, (HF) = 6.8 x 104. Consider the following two aqueous mixtures: Solution (1): mixing 50.0 mL each of 0.25-M Alloxanic acid and 0.25-M NAOH. Solution (2): mixing 50.0 mL each of 0.25-M HF and 0.25-M NAOH. Part 1. Which of the above mixtures does have a higher pH after the solutions reach equilibrium? b) Solution (2) c) same pH for both solutions d) insufficient information. a) Solution (1) Part 2. Which of the above two mixtures in Part 1 does have pH > 7 at equilibrium? a) Solution (1) b) Solution (2) c) both solutions d) neither of the two solutions

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter7: Solutions And Colloids

Section: Chapter Questions

Problem 7.107E

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