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The values of K(sp) of CaCO(3) and CaC(2...

The values of `K_(sp)` of `CaCO_(3) and CaC_(2)O_(4)` are `4.7 times 10^(-9) and 1.3 times 10^(-9)M^(2)` respectively at 298 K. If a solid mixture of these two salts is extracted with water, what is the concentration of `Ca^(2+)` ions in the aq. extract?

A

`7.75 times 10^(-5)M`

B

`5.8 times 10^(-5)M`

C

`6.85 times 10^(-5)M`

D

`3.6 times 10^(-5)M`

Text Solution

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The correct Answer is:
A
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