Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.20 M hypochlorous acid + 0.19 M sodium hypochlorite 0.20 M hydrochloric acid + 0.21 M potassium chloride 0.26 M ammonium nitrate + 0.33 M ammonia 0.12 M potassium hydroxide + 0.21 M potassium bromide 0.39 M hydrofluoric acid + 0.28 M sodium fluoride

Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.20 M hypochlorous acid + 0.19 M sodium hypochlorite 0.20 M hydrochloric acid + 0.21 M potassium chloride 0.26 M ammonium nitrate + 0.33 M ammonia 0.12 M potassium hydroxide + 0.21 M potassium bromide 0.39 M hydrofluoric acid + 0.28 M sodium fluoride

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter16: Reactions Between Acids And Bases

Section: Chapter Questions

Problem 16.82QE

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Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.22 M hydrocyanic acid + 0.10 M sodium cyanide 0.27 M perchloric acid + 0.20 M sodium perchlorate 0.28 M ammonium nitrate + 0.38 M ammonia 0.15 M barium hydroxide + 0.29 M barium bromide 0.34 M hypochlorous acid + 0.20 M potassium hypochlorite
Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.32 M nitrous acid + 0.27 M sodium nitrite0.24 M hydroiodic acid + 0.18 M sodium iodide0.21 M hydrocyanic acid + 0.19 M sodium cyanide0.12 M calcium hydroxide + 0.25 M calcium chloride0.34 M ammonium bromide + 0.30 M ammonia
Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.10 M hydrofluoric acid + 0.10 M sodium fluoride 0.23 M hydrobromic acid + 0.22 M sodium bromide 0.30 M ammonia + 0.38 M calcium hydroxide 0.19 M sodium hydroxide + 0.22 M sodium chloride 0.31 M barium nitrate + 0.20 M potassium nitrate 0.18 M hypochlorous acid + 0.17 M potassium hypochlorite 0.22 M perchloric acid + 0.23 M potassium perchlorate 0.30 M ammonium nitrate + 0.39 M ammonia 0.11 M barium hydroxide + 0.23 M barium bromide 0.36 M acetic acid + 0.26 M potassium acetate
Identify buffer solutions from the following list.Choose all that apply. 0.34 M barium bromide + 0.24 M barium nitrate. 0.25 M hydrobromic acid + 0.18 M sodium bromide. 0.13 M potassium hydroxide + 0.27 M potassium bromide. 0.27 M ammonia + 0.30 M ammonium nitrate. 0.21 M nitrous acid + 0.12 M potassium nitrite.
Which of the following pairs of solutions will form a buffer? Select all that apply Group of answer choices 0.100 M HF and 0.100 M NaF 0.100 M HCl and 0.100 M NaCl 0.100 M NaCl and 0.100 M KCl 0.100 M HCN and 0.100 M LiCN
If 21 mL of 3.2 x 10–5 M magnesium chloride and 15 mL of 1.5 x 10–4 M sodium fluoride are mixed, what are the concentrations of magnesium chloride and sodium fluoride after mixing? Keep an extra sig fig. Question 8 options: sodium fluoride magnesium chloride 1. 1.87 x 10–5 M 2. 3.73 x 10–5 M 3. 6.25 x 10–5 M 4. 1.25 x 10–4 M 5. 1.50 x 10–4 M
What is the molar solubility of lead(II) iodide in a 0.40 M solution of sodium iodide? Question 14 options: 0.40 M 8.8 x 10–8 1.5 x 10–3 1.9 x 10–4 1.8 x 10–8 Answer and Explain
What is the molar solubility of lead(II) iodide in a 0.40 M solution of sodium iodide? Question 14 options: 0.40 M 8.8 x 10–8 1.5 x 10–3 1.9 x 10–4 1.8 x 10–8
1. Which of the following solution(s) would be a buffer? Select all that apply. A 100.0 mL of a solution that contains 0.100 M benzoic acid and 0.100 M potassium benzoate B 100.0 mL of a 0.100 M formic acid solution C 100.0 mL of a solution that contains 0.100 M hydrochloric acid and 0.100 M sodium chloride D 100.0 mL of a 0.100 M solution of acetic acid in which 0.100 g of sodium acetate is dissolved E 100.0 mL of a 0.100 M propanoic acid to which 50.0 mL of 0.100 M sodium hydroxide has been added
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