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9 February, 06:29

When 200. ml of water are added to 100. ml of 12% kcl solution the final concentration of kcl is (assume the volumes add.) ?

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  1. 9 February, 06:49
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    Since the original concentration is expressed in terms of mass %, let's also answer with mass %. To do this easily, let's use the formula for mass dilution.

    C₁V₁ = C₂V₂

    where C stands for concentration and V stands for volume

    The solution is as follows:

    (12%) (100 mL) = (C₂) (100 mL + 200 mL)

    Solving for C₂,

    C₂ = 4%
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