Respuesta :
[tex]pKa of $\mathrm{HClO}=7.54$ stanclard value$[/tex]
[tex]a) $\mathrm{pH}=\mathrm{pKa}+\mathrm{log}[\mathrm{NaClO}] / \mathrm{HCK}]$\mathrm{oH}=7.54+\log [0.05] /[0.05]$\mathbf{p H}=7.54$[/tex]
[tex]b) $\mathrm{pH}=\mathrm{pKa}+\log [\mathrm{NaClO}] /[\mathrm{HClO}]$\mathrm{pH}=7.54+\log [0.075] /[0.05]$\mathrm{pH}=7.72$[/tex]
[tex]c) $\mathrm{pH}=\mathrm{pKa}+\log [\mathrm{NaClO}] /[\mathrm{HClO}]$\mathrm{pH}=7.54+\log [0.05] /[0.075]$p \mathrm{H}=7.36$[/tex]
[tex]a) after added $0.005 / 1=0.005 \mathrm{M} \mathrm{NaOH}$[\mathrm{NaClO}]=0.05+0.005=0.055 \mathrm{M}$[\mathrm{HClO}]=0 . \mathrm{O}-0.005=0.045 \mathrm{M}$\mathrm{pH}=\mathrm{pKa}+\log [\mathrm{NaClO} /[\mathrm{HClO}]$\mathrm{pH}=7.54+\log [0.055] /[0.045]$\mathrm{pH}=7.63$[/tex]
What is pH?
pH stands for Hydrogen potentials or historically denoting "potential of hydrogen". It refers to the concentration of the hydrogen ions in a solution. It’s a scale used to specify the acidity or basicity of an aqueous solution. Acidic solutions are measured to have lower pH values than basic solutions. This is the indicator of a solution's acidity or alkalinity. The pH value on a pH scale varies from 0 to 14.
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