Q.
Equal volumes of 0.5M NaOH and 0.3M KOH are mixed. Then the pH and pOH of resulting solution are respectively.
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a
13.6, 0.4
b
0.4, 13.6
c
0.7, 13.3
d
13.3, 0.7
answer is A.
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Detailed Solution
OH-final =0.5×V+0.3×V2V=12(0.8) OH-final =0.4=4×10-1POH = 1 - 2 x0.30 = 0.4PH = 13.6
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