The values of K_{s p} of {CaCO}_{3} and {CaC}_{2} {O}_{4} are 4.7 \times 10^{-9} and 1.3 \times 10^{-9} respectively at 25^{\circ} {C}. If the mixture of these two is washed with water, what is the concentration of {Ca}^{2+} ions in water? (Karnataka NEET 2013)

Correct Answer is : 7.746×10−5M

Class 11 NEET Chemistry Equilibrium Questions Part 1

Question : 25 of 100

Marks: +1, -0

The values of Ksp of CaCO3 and CaC2O4 are 4.7×10−9 and 1.3×10−9 respectively at 25∘C. If the mixture of these two is washed with water, what is the concentration of Ca2+ ions in water?

(Karnataka NEET 2013)

5.831×10−5M
6.856×10−5M
3.606×10−5M
7.746×10−5M

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