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12 October, 18:10

How would you prepare 100.0 ml of. 400 m CaCl2 from a stock solution of 2.00 M CaCl2?

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  1. 12 October, 18:38
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    C₀=2 mol/l

    c₁=0.400 mol/l

    v₁=100.0 ml = 0.1 l

    c₁v₁=c₀v₀

    v₀=c₁v₁/c₀

    v (H₂O) = v₁-v₀

    v₀=0.1*0.400/2=0.02 l = 20 ml

    v (H₂O) = 100 - 20 = 80 ml

    It is necessary to mix 20 ml of the feed solution and 80 ml of water.
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