In a buffer solution containing equal concentrations of B - and HB the K b for B - is 1 0 - 10 . The pH of buffer solution is

Question

In a buffer solution containing equal concentrations of B - and HB the K b for B - is 1 0 - 10 . The pH of buffer solution is, 4, 5, 7, 6

MARKS App · Accepted Answer

For acidic buffer pH can be find out as follows p H = p K a + l o g 10 [ s a l t ] [ a c i d ] Here K b = 1 0 - 10 K a = 1 0 - 4 , p K a = 4 As p H = 4 + l o g 10 [ B - ] [ H B ] As [ B - ] = [ H B ] p H = 4 + l o g 1 = 4

Search any question & find its solution

Looking for more such questions to practice?