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Calculate the mass of NaOH (in mg ) requ...

Calculate the mass of `NaOH` (in `mg` ) required to add in `100mL` of `0.1MCH_(3)COOH` solution so that we get a buffer solution of `pH=4` Given `Ka` of `CH_(3)COOH=10^(-5)` (Atomic masses Na=23 ,H=1 ,O=16)

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