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Calculate the molarity of KOH in solutio...

Calculate the molarity of `KOH` in solution prepared by dissolving `5.6 g` in enough water to form `250 mL` of the solution.

Text Solution

Verified by Experts

Molar mass `(Mw_(2))`, of solute `(KOH) = (39 + 16 + 1) g`
`= 56 g`
Use the formula of molarity
`M = (W_(2) xx 1000)/(Mw_(2) xx V_(sol) ("in" L)) = (5.6 xx 1000)/(56 xx 250)`
`= 0.4 mol L^(-1) = 0.4 M`
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