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  3. Chemistry
  4. A 0.01 M ammonia solution is 5 % ionised. The concentration of OH -ion is

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Q. A $0.01 \,M$ ammonia solution is $5 \%$ ionised. The concentration of $OH ^{-}$ion is

Equilibrium

Solution:

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$\therefore \left[ OH ^{-}\right]=C \alpha=0.01 \times 0.05=0.0005\, M$