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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)` Calculate the volume of water requried to dissolve `0.1 g` lead (II) chloride to get a saturated solution . (`K_(sp)` of `PbCl_(2) = 3.2 xx 10^(-8)`, atomic mass of `Pb = 207 u`)A. `0.1798`B. `0.3`C. `0.652`D. `0.412`

Answer» Correct Answer - A
`K_(sp) = [Pb^(+2)][Cl^(-)]^(2) =(S)`


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