InterviewSolution
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InterviewSolution
| 1. |
Higher the amount of acid or base used to product a deinite change of pH in a buffer solution, higher will be its buffe capacity. Buffer capcity of solution is maximum under the following conditions [Salt] = [Acid](in acid buffer) [Salt] = [Base] (in base capacity] pH of buffer solution lies inthe range given below `pH = pH_(a) +-1` In other words,any buffer solution can be used as buffer up to two pH units only, depending upon the value of `pK_(a)` or `pK_(b)`. A buffer is said to be efficient when `pH = pK_(a)` or `pOH = pK_(b)`A buffer of acetic acid `(pK_(a) = 4.8)` with sodium acetate will be, when `CH_(3)COOH` and `CH_(3)COONa` are present in equivalent amounts has pH limits equal toA. `0` to `4.8`B. `3.8 ` to `5.8`C. `4.3` to `5.3`D. `4.8` |
| Answer» Correct Answer - B | |