Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.12 M hypochlorous acid + 0.21 M sodium hypochlorite 0.23 M perchloric acid + 0.25 M potassium perchlorate 0.29 M ammonium nitrate + 0.37 M ammonia 0.17 M barium hydroxide + 0.25 M barium bromide 0.31 M hydrofluoric acid + 0.23 M potassium fluoride

Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.21 M hydrofluoric acid + 0.13 M potassium fluoride 0.22 M nitric acid + 0.16 M potassium nitrate 0.31 M ammonium bromide + 0.31 M ammonia 0.14 M calcium hydroxide + 0.29 M calcium chloride 0.34 M acetic acid + 0.22 M sodium acetate

Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.26 M perchloric acid + 0.16 M sodium perchlorate 0.15 M sodium acetate + 0.21 M acetic acid 0.35 M hypochlorous acid +0.23 M sodium hypochlorite 0.21 M hydrofluoric acid + 0.22 M sodium fluoride O 0.28 M ammonium bromide + 0.32 M ammonia

Macmillan Learning Select the statements that describe a method which can be used to make a buffer. Partially neutralize a strong acid solution by addition of a strong base. Add appropriate quantities of weak acid and its conjugate base to water. Partially neutralize a weak base solution by addition of a strong acid. Partially neutralize a strong base solution by addition of a strong acid. Partially neutralize a weak acid solution by addition of a strong base. OCT 12 3o) N A

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Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.25 M ammonium nitrate + 0.31 M ammonia 0.39 M hydrofluoric acid + 0.23 M sodium fluoride 0.21 M hydrocyanic acid + 0.14 M potassium cyanide 20 0.12 M potassium hypochlorite + 0.20 M hypochlorous acid 0.26 M hydroiodic acid + 0.18 M potassium iodide Submit Answer $ 4 000 000 F4 R Show Hint % [Review Topics) [References] Use the References to access important values if needed for this question. Retry Entire Group 9 more group attempts remaining T Cengage Learning Cengage Technical Support F5 A 6 MacBook Air F6 & F7 U * 8 F8 1 ▶ 9 F9 F10 4) P A Previ F11

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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

Question Completion Status: QUESTION 28 Check all that is true for a buffer solution. The pH of a buffer solution can be determined by the Henderson-Hasselbalch equation When the acid and base components of the buffer solution is present in equal amount, pH = pKa When a strong acid is added to a buffer solution, the acid component of the buffer solution will decrease in concentration. A buffer solution is resistant to changes in its pH A buffer solution contains a weak(<100% ionization) conjugate acid/base pair QUESTION 29 Which of the following cannot be a buffer solution? Each component is at 0.050 M concentration. OHCI/CI OH-C₂H302/ C2H30₂ O NH4+/NH3 O HNO₂/NO₂ QUESTION 30 Below is a titration curve of a sample of monoprotic acid (HA) by NaOH. Which is most likely the acid? Click Save and Submit to save and submit. Click Save All Answers to save all answers. A

Which of the following aqueous solutions are good buffer systems? (Select all that apply.) □ 0.20 M hypochlorous acid + 0.12 M potassium hypochlorite O 0.26 M ammonium bromide + 0.38 M ammonia □ 0.24 M hydroiodic acid + 0.16 M potassium iodide O 0.33 M hydrofluoric acid + 0.22 M potassium fluoride 0.14 M potassium acetate + 0.28 M acetic acid