1) Equal volume of two solution having pH = 2 and pH = 10 are mixed together at 90° C.
Then pH of resulting solution is: (Take Kw at 90°C = 10-12 )
[a] 2 + log 2 [B] 10 - log 2 [c] 7 [d] 6
2) The ionazation constant of benzoic acid is 6.46 x10-5 and Ksp for silver
benzoate is 2.5 x 10-13 . How many times silver benzoate more soluble in a buffer of
PH = 3.19 as compared to its solubility in pure water ?
[a] 3.317 [B] 6 - log3 [C] 6 + 2 log2 [D] 6 - 2 log3
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2 Answers
13571. meq of acid=10-2*V
meq of base=10-2*V
both will react to form water.
so it will become neutral
so pH will be 6
