2 litres of 0.3 M NaOH and 3 litres 0.2 M Ba(OH)2 are mixed with each other. The solution is diluted to ten litres. Hydroxyl ion concentration of the resultant mixture is ----- M
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a
0.24
b
0.48
c
0.18
d
0.36
answer is C.
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Detailed Solution
N = V1N2+V2N2Total volume of the mixture ; N =20.31+30.2210 ; N = 0.18 N ; Nbase=OH-