Chemistry

OOPs i Meant How many grams CaCo3will dissolve on 3.0*10^2mL of 0.050 M Ca(NO3)2? Ksp=8.7*10^-9

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  1. CaCO3 ==> Ca^+2 + CO3^-2
    S = solubility
    ..S........S....... S

    Ca(NO3)2 ==> Ca^+2 + 2NO3^-
    ..0.05M......0.05M....0.10M

    Ksp = (Ca^+2)(CO3^-2) = (S+0.05)(S) = Ksp.
    Solve for S (which will be moles/L), then convert to moles in 300 mL, then convert to grams by g = moles x molar mass.
    Post your work if you get stuck.

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