Question

how to calculate pH of a soln if conc. of OH ions is given

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Answer 1

Answer:

ans pH of this is 11

first calculate the concentration of OH^- ion by the formula;moles =conc×volume

then negative log of that will give you p^^OH then subtract it from 14 to get pH value

Answer 2

Answer:

Molarity=No of moles of solute/Volume in liters

            =2 x 10^-3/2

            =10^-3

pOH=-log[10^-3]

        =3

therefore, pH+pOH=14

                 pH=14-pOH

                      =14-3=11