15th Edition

ISBN: 9781323233252

Author: Brown

Publisher: PEARSON C

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Textbook Question

Chapter 24, Problem 30E

Practice Exercise 2

Calculate the pH of a 0.020 M solution of oxalic acid (H₂C₂O₄). (See Table 16.3 for K_a₁ and K_a₂.)
Calculate the concentration of oxalate ion, [C₂O₄²^-], in this solution.

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Chapter 24, Problem 29E

Chapter 24, Problem 31E

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pH practice a.) determine the pH of a nitric acid solution (HNO3) that has been prepared by mixing 2.0 mL of 1.0 M HNO3 with 98.0 mL of water b.) determine the pH of a 25 mL carbonic acid solution (H2CO3) with a concentration of 5.7 x 10-5 M. assume all the protons will dissociate from the acid and react with water to form hydronium ions. c.) determine the pH and pOH of a NaOH solution that has been prepared by diluting 20.0 mL of 6.0 M NaOH with 80.0 mL of water. d.) determine the pH and pOH of a Ca(OH)2 solution that has been prepared by mixing 0.26 g of Ca(OH)2 pellets in 750 mL of water.

Learning Check Determine the pH of a 0.1M solution of the salt NaF basic due to F- Kb=Kw/Ka UNIVERSITY x² / 0.1 = 2.87e-11 I C F- 0.1M -X + H₂O → OH- + HF (aq) aq. E (0.1-x)≈ 0.1 N/A -X • N/A pOH=? 0 +x X 16.3. Salt solutions are not neutral if the ions are weak acids or bases pH=? 0 +x

Homework: Answer the following: Determine the pH level of a solution that has 0.02372 M of Formic acid, given that the Ka of formic acid is equal to 1.400 x 10-4

Chapter 24 Solutions

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Ch. 24.2 - Prob. 24.1.1PE Ch. 24.2 - The equilibrium constant Kc for C(s) +CO2 2CO(g)...Ch. 24.2 - Prob. 24.2.1PE Ch. 24.2 - Le Chatelier noted that many industrial processes...Ch. 24.3 - Prob. 24.3.1PE Ch. 24.3 - Prob. 24.3.2PE Ch. 24.3 - [15.91] An equilibrium mixture of H2, I2, and HI...Ch. 24.3 - Consider the hypothetical reaction A(g) + 2B(g) 2...Ch. 24.3 - Prob. 24.5.1PE Ch. 24.3 - Prob. 24.5.2PE

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Practice Exercise 2 Calculate the pH of a 0.020 M solution of oxalic acid (H 2 C 2 O 4 ). (See Table 16.3 for K a 1 and K a 2 .) Calculate the concentration of oxalate ion, [C 2 O 4 2 - ], in this solution.

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Chapter 24 Solutions