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CBSE Class 11-science Answered

Calculate the dissociation constant of a monobasic acid having the degree of dissociation 2% in its 0.01M solution.
Asked by Topperlearning User | 28 Apr, 2015, 11:01: AM
answered-by-expert Expert Answer
Use Ionization constant expression
 
begin mathsize 11px style straight K subscript straight a space equals space fraction numerator straight c squared space straight alpha over denominator left parenthesis 1 space minus space straight alpha right parenthesis end fraction end style
Substitute the respective values; we get
Ka =  (0.01)(0.02 x 0.02)/ (1 - 0.02)
    = 4.08 x 10-6  M/L
Answered by | 28 Apr, 2015, 01:01: PM
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