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Home / Doubts and Solutions/JEE/Chemistry

Ques 8

Asked by rbhatt16 30th November 2017, 7:48 PM
Answered by Expert
Answer:
T h e space d e n s i t y space o f space w a t e r space i s space 1 space g space L to the power of negative 1 end exponent space o r space 1000 space g space L to the power of negative 1 end exponent. T h e space m o l a r space m a s s space o f space w a t e r space i s space 18 space g space m o l to the power of negative 1 end exponent. T h u s space m o l a r i t y space o f space w a t e r space c a n space b e space g i v e n space a s space C subscript H subscript 2 O end subscript space equals fraction numerator d subscript H subscript 2 O end subscript over denominator M o l a r space m a s s subscript H subscript 2 O end subscript end fraction space equals space 1000 over 18 space equals space 55.5 space m o l space L to the power of negative 1 end exponent N o w comma space c a l c u l a t e space t h e space d e g r e e space o f space d i s s o c i a t i o n space o f space w a t e r space a s alpha space equals C subscript H to the power of plus end subscript over C subscript H subscript 2 O end subscript space space o r space space space C subscript O H to the power of minus end subscript over C subscript H subscript 2 O end subscript space equals space fraction numerator 1.0 space cross times 10 to the power of negative 7 end exponent over denominator 55.5 end fraction space equals space 1.8 space cross times 10 to the power of negative 9 end exponent D e g r e e space o f space d i s s o c i a t i o n space o f space w a t e r space a t space 25 to the power of 0 C space i s space space 1.8 space cross times 10 to the power of negative 9 end exponent
Answered by Expert 1st December 2017, 11:52 AM
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