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sir please answer also give other egs

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Asked by minipkda 23rd May 2018, 6:08 AM
Answered by Expert
Answer:
pH equals space equals space 8.26

pOH space equals space 14 space minus pH

space space space space space space space space equals space 14 minus 8.26

space space space space space space space space equals space 5.74.

pK subscript straight b space equals space 14 minus space 9.26 space

space space space space space space space space equals space 4.74

pOH space equals space pK subscript straight b space plus log fraction numerator open square brackets NH subscript 4 to the power of plus close square brackets over denominator open square brackets NH subscript 4 OH close square brackets end fraction

space 5.74 space equals space 4.74 space plus space log space fraction numerator open square brackets NH subscript 4 to the power of plus close square brackets over denominator 0.01 end fraction

space space space space space space 1 equals log open square brackets NH subscript 4 to the power of plus close square brackets minus log open parentheses 0.01 close parentheses

space space space space space space space 1 equals log open square brackets NH subscript 4 to the power of plus close square brackets plus 2

log open square brackets NH subscript 4 to the power of plus close square brackets equals space minus 1

Taking space antilog space

open square brackets NH subscript 4 to the power of plus close square brackets equals space 0.1
Option C is correct.
 
Answered by Expert 23rd May 2018, 10:07 AM
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