First slide

PH of strong acids and strong bases

Question

Equal volumes of two solutions with pH =3 and pH = 11 are mixed. Then the pH of resulting solution at 298 K is

Moderate

A

8
B

7
C

6
D

0

Solution

Resultant solution will be neutral as the no. of moles of H⁺ and number of moles of OH^- are same.
${[H^{+}]}_{1} = 10^{- 3} M; {[H^{+}]}_{2} = 10^{- 11} M; {[{OH}^{-}]}_{2} = 10^{-} M; Solution is neutral .$

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