Buffer Intensity? Buffer intensity is the resistance of a solution to a pH change when a strong acid or base is added. Which of the following solutions has the greatest buffer intensity?- A. a solution containing 1.0 M NH₃/1.0 M NH₄⁺- B. a solution containing 0.10 M NaOH/0.10 M HCl- C. a solution containing 1.0 M NaOH/1.0 M HCl- D. a solution containing 0.10 M NH₃/0.10 M NH₄⁺

Buffer intensity is the resistance of a solution to a pH change when a strong acid or base is added . It can be calculated from the Henderson's equations . More the PH value more will be the buffer intensity.Here 2 solution is given one is of NH3/NH4+ Solution and another one is NaOH/HCl . Henderson's equation is for buffer of (strong acid and base) that is for( NaOH/HCl) pH=pka+log final concentraion of saltfinal concentration of acid Henderson's equation is for buffer of (weak acid and base) that is for (NH3/NH4+) pOH=pkb+log final concentraion of saltfinal concentration of base Here the PH of the buffer of a solution strong acid and base is less than 7 .but the PH of the buffer of solution of weak acid and weak base is greater than 7. we know more the value of PH more will be the buffer intensity . From the above options (NH3/NH4+) is mixture of weak acid and weak base so its pH is greater than 7. The 1M solution of (NH3/NH4+) has more concentration than 0.1 M of (NH3/NH4+) ,so 1M solution has more pH value than 0.1 M solution . From the above explanation we can conclude that a solution containing 1M NH3/1M NH4+ has more buffer intensity than other solution . Hence option 1 is correct.

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Buffer intensity is the resistance of a solution to a pH change when a strong acid or base is added. Which of the following solutions has the greatest buffer intensity? А. a solution containing 1.0 M NH3/1.0 M NH4+ В. a solution containing 0.10 M NaOH/0.10 M HCI С. a solution containing 1.0 M NaOH/1.0 M HCI D. a solution containing 0.10 M NH3/0.10 M NH4+

Buffer intensity is the resistance of a solution to a pH change when a strong acid or base is added. Which of the following solutions has the greatest buffer intensity? А. a solution containing 1.0 M NH3/1.0 M NH4+ В. a solution containing 0.10 M NaOH/0.10 M HCI С. a solution containing 1.0 M NaOH/1.0 M HCI D. a solution containing 0.10 M NH3/0.10 M NH4+

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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