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CBSE Class 11-science Answered

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Asked by Prashant DIGHE | 08 Jun, 2020, 10:29: PM
answered-by-expert Expert Answer
Concentration of H+ at equivalence point can be calculated by-
M O H space space space space space space space space space space plus thin space space space space H C l space space space space rightwards arrow space M C l space plus thin space H subscript 2 O 2.5 space ml comma space 2 over 5 straight M space space space space space space 2 over 15 straight M comma space straight V space space eq left parenthesis MOH right parenthesis equals EqHCl equals EqMCl 2.5 cross times 2 over 5 cross times 1 equals 2 over 15 cross times straight V cross times 1 straight V equals 7.5 space ml MCl plus straight H subscript 2 straight O rightwards arrow straight M to the power of plus space plus space straight H to the power of plus straight K subscript straight h equals fraction numerator ch squared over denominator 1 minus straight h end fraction equals straight K subscript straight w over straight K subscript straight b equals 10 to the power of negative 14 end exponent over 10 to the power of negative 12 end exponent equals 10 to the power of negative 2 space end exponent straight M straight h almost equal to 0.7 left square bracket straight H to the power of plus right square bracket equals 2.7 cross times 10 to the power of negative 2 end exponent space straight M
Answered by Ravi | 09 Jun, 2020, 07:21: PM

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