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A solution is saturated with respect to strontium fluoride and strontium carbonate. The fluoride ion concentration in the solution is found to be `3.7 xx 10^(-2) mol L^(-1)`. What is the value of `[CO_2^2-]` ? `K_sp (SrF_2) = 8 xx 10^(-10)` and `k_sp(SrCO_3) = 9.3 xx 10^(-10)`

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`1.59 xx 10^(-3) mol L^(-1)`
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