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What is the solubility product (K(sp)) ...

What is the solubility product `(K_(sp))` of calcuim phosphate in pure water ? [S=molar solubility]

A

`108 x^(2) `

B

` 36 x^(3) `

C

` 36 x^(5)`

D

` 108 x ^(5) `

Text Solution

Verified by Experts

The correct Answer is:
D
`Ca_3 (PO_4)_2 hArr 3Ca^(+2) +2PO_4^(3-) `
`" " 3X " " 2X `
` Ksp= (3x) ^(3) (2x)^(2) =108x^(5)`
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A solution which remains in equilibrium with undissolved solute is said to be saturated. The concentration of a saturated solution at a given temperature is called solubility. The product of concentration of ions in a saturated solution of an electrolyte at a given temperature, is called solubility product (K_(sp)) . For the electrolyte, A_(x),B_(y),:A_(x),B_(y(s)) rarr xA^(y+)+ y^(Bx-) , with solubility S, the solubility product (K_(sp)) =x^(x)xxy^(y) xx s^(x+y) . While calculating the solubility of a sparingly soluble salt in the presence of some strong electrolyte containing a common ion, the common ion concentration is practically equal to that of strong electrolyte. If in a solution, the ionic product of an clectrolyte exceeds its K_(sp) , value at a particular temperature, then precipitation occurs. The solubility of PbSO_(4) , in water is 0.303 g/l at 25^(@) C, its solubility product at that temperature is

AAKASH SERIES-IONIC EQUILIBRIUM -PRACTICE SHEET (EXERCISE -IV LEVEL -I (MAIN) (Straight Objective Type Questions))
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  3. What is the solubility product (K(sp)) of calcuim phosphate in pure ...

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  4. pH of Ba(OH)(2) Ssolution is 12. Its solubility product is :

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  5. The solubility of AgCl in 0.1M NaCI is (K(sp) " of AgCl" = 1.2 xx 10^(...

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  6. Which of the following is most soluble ?

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  7. To Ag(2)CrO(4) solution over its own percipitate CrO(4)^(2-) ions are ...

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  8. Among the following statements a) If two salts have equal solubility...

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  9. The human eye is sensitive to colour differences of indicator only whe...

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  10. Ionisation of NH(4) OH is supressed by the addition of NH(4)CI because

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  11. Dissociation of CH(3),COOH is supressed by adding

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  12. The solubility product of BaSO4 at 18^(@) C is 15 xx 10^(-9) Its sol...

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  13. The molar solubility in mol. lit^(-1) of a sparingly soluble salt MX(4...

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  14. The solubility of CaF(2) is 2xx10^(-4) mole /litre . Its solubility pr...

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  15. Comment on the solubility of calcium sulphate in water.

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  16. pH of Ba(OH)(2) Ssolution is 12. Its solubility product is :

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  17. The solubility of AgCl in 0.1M NaCI is (K(sp) " of AgCl" = 1.2 xx 10^(...

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  18. Which of the following is most soluble ?

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  19. To Ag(2)CrO(4) solution over its own percipitate CrO(4)^(2-) ions are ...

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  20. Among the following statements a) If two salts have equal solubility...

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