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Standard XII

Chemistry

Physical Properties (Group 1)

the solubilit...

Question

the solubility of CaCO3 is 7*10^-3 mg/litre.calculate the solubility of BaCO3 (in mol/l) from this information and from the fact that when Na2CO3 is added slowly to a solution containing equimolar concentration of Ca^2+ and Ba^2+,no precipitate of CaCO3 is formed until 90% of Ba^+2 has been precipitated as BaCO3 .(assume no hydrolysis of CO3^2- ion.)

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Q. The solubility of

C a C O_{3}

is 7 mg/L. Calculate the

K_{s p}

B a C O_{3}

when

N a_{2} C O_{3}

is added slowly a solution containing equimolar concentration of

C a^{2 +}

and

B a^{2 +}

and no precipitate is formed until 90% of

B a^{2 +}

has been precipitated as

B a C O_{3}

Q. The solubility of

C a {C O}_{3}

7

mg/litre. Calculate the solubility product of

B a {C O}_{3}

from this information and from the fact that when

{N a}_{2} {C O}_{3}

is added slowly to a sloution containing equimolar concentration of

{C a}^{2 +}

and

{B a}^{2 +}

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has been precipitated as

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. The solubility product of

B a {C O}_{3}

Q. The solubility of

C a C O_{3}

7 m g / l i t r e

. Calculate the solubility product of

B a C O_{3}

from this information and from the fact that when

N a_{2} C O_{3}

is added slowly to a colution containing equimolar concentration of

C a^{+ 2} a n d B a^{+ 2}

, no precipitate of

C a C O_{3}

is formed until

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B a^{+ 2}

has been precipitated as

B a C O_{3}

Q. The solubility of

C a {C O}_{3}

7 m g / l i t r e

. Calculate the solubility product of

B a {C O}_{3}

from this information and from the fact that when

{N a}_{2} {C O}_{3}

is added slowly to a sloution containing equimolar concentration of

{C a}^{2 +}

and

{B a}^{2 +}

, no precipitate is formed until

90

% of

{B a}^{2 +}

has been precipitated as

B a {C O}_{3}

. The solubility product of

B a {C O}_{3}

X \times 10^{- 10}

{m o l}^{2} {l i t r e}^{- 2}

, the value of integer nearest to

X

is:

Q. Solid

B a (N O_{3})_{2}

is gradually dissolved in a

1 \times 10^{- 4}

N a_{2} C O_{3}

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, precipitate of

B a C O_{3}

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B a C O_{3} = 5.1 \times 10^{- 9})

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