Mole ConceptHard
Question
One mole of ${Cl}_{2}(\text{ }g)$ was passed into 2 L of cold 2 M KOH solution. After the reaction, the concentrations of ${Cl}^{-},{ClO}^{-}$and ${OH}^{-}$are respectively (assume volume remains constant)
Options
A.$0.75M,0.75M,1M$
B.$0.5M,0.5M,0.5M$
C.$0.5M,0.5M,1M$
D.$1M,1M,1M$
Solution
$\ {Cl}_{2} + 2KOH \rightarrow KCl + KClO + H_{2}O$
$t = 01$ mole 4 mole
$t_{f}02$ mole 1 mole 1 mole
$${\left\lbrack {OH}^{-} \right\rbrack = 1M }{\left\lbrack {Cl}^{-} \right\rbrack = \frac{1}{2}M }{\left\lbrack {ClO}^{-} \right\rbrack = \frac{1}{2}M}$$
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