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Sagot :
Answer is 9
pKb=−logK
b=−log10^-5=5
- A mixture of ammonium hydroxide and ammonium chloride forms a basic buffer solution.
- Henderson's equation for the basic buffer solution is as given below-
pOH=pKb+log[acid]*[salt]
Substitute values in the above expression.
pOH=5+log0.1*0.1=5
Hence, the pH of the solution is pH=14−pOH=14−5=9
What do you mean by pH ?
- potential of hydrogen
- a measure of the acidity or alkalinity of a solution
- equal to the common logarithm of the reciprocal of the concentration of hydrogen ions in moles per cubic decimetre of solution.
- Pure water has a pH of 7,
- acid solutions have a pH of less than 7,
- and alkaline solution with a pH greater than 7.
Learn more about pH here
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