Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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- NH3 is a weak base (K, = 1.8 × 10-5) and so the salt NH¼C1 acts as a weak acid. What is the pH of a solution that is 0.088 M in NH,Cl at 25 °C?arrow_forwardFind the pH of a 0.337 M aqueous solution of hydrofluoric acid (HF), for which Ka = 6.8 × 10-4.arrow_forwardThe acid dissociation constant for acetic acid (HC2H3O2, commonly abbreviated HAc) is 1.8 x 10-5. Calculate the pH of a 0.10 M solution of HAc.arrow_forward
- Calculate the pH of a solution that is 0.450 M HC2H2O2 and 0.730 M NaC2H3O2. The Ka for acetic acid is 1.80 x 10-5. Does this correspond to an acidic or basic pH?arrow_forwardWhat is the pH of a 0.0500 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10⁻¹⁰)?arrow_forwardWhat is the pH (to two decimal places) of a 0.2 M CH3COOH aqueous solution (at 25 °C)? Ka = 1.75 × 10–5arrow_forward
- 20. What is the pH of the resulting solution when 0.456 g of sodium acetate are dissolved into 1 L of water at 25 °C? K₂(CH3COOH) = 1.8 ×10¯5 -5 A: 8.25arrow_forwardIn the laboratory, a general chemistry student measured the pH of a 0.532 M aqueous solution of hydrofluoric acid to be 1.693. Use the information she obtained to determine the Ka for this acid. Ka(experiment) =arrow_forwardNH3 is a weak base (Kb = 1.8 × 10–5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.051 M in NH4Cl at 25 °C?arrow_forward
- What is the concentration needed of hypochlorous acid (a weak organic acid) needed to reach a pH of 4.75? The Ka of hypochlorous acid is 2.9*10-8.arrow_forward-8 The base protonation constant K₂ of 1-H-imidazole (C3H4N₂) is 9.0 × 10 b Calculate the pH of a 0.81 M solution of 1-H-imidazole at 25 °C. Round your answer to 1 decimal place. pH = X Śarrow_forwardHCIO is a weak acid (K₁ = 4.0 × 10-8) and so the salt NaCIO acts as a weak base. What is the pH of a solution that is 0.064 M in NaCIO at 25 °C? pH =arrow_forward
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