Worksheet on Solubility Product





Solubility product is a constant given to a solution containing sparingly soluble salts. It is denoted by ksp . Solubility product constants are also used to describe saturated solutions of ionic compounds having relatively low solubility.

Here, you can find some questions related to “Solubility Products” and their answers:

Questions:

1. Which of the following compounds is most soluble in water?

(a)     ZnS

(b)   BiS_3

(c)    MnS

(d)   Ag_2S

 

2. If solubility product of HgSO_4 is 6.4 \times 10^{-5} then solubility is:

(a)    6.4 \times 10^{-5}

(b)   8 \times 10^{-3}

(c)    6.4 \times 10^{-6}

(d)   8 \times 10^{-8}

 

3. The solubility product of NaCl is 1.5 \times 10^{-10} at 298 K. its solubility in mol L^{-1} would be:

(a)    3.5 \times 10^{-5}

(b)   1.5 \times 10^{-5}

(c)    1.2 \times 10^{-5}

(d)   9.7 \times 10^{-3}

 

4. The solubility product of a binary weak electrolyte is 4 \times 10^{-10} at 298 K. Its solubility in mol dm^{-3} at the same temperature is:

(a)    2 \times 10^{-4}

(b)   1.4 \times 10^{-20}

(c)    8 \times 10^{-15}

(d)    4 \times 10^{-5}

 

5. The solubility product of nickel arsenide is 5 \times 10^{-8}. its solubility is:

(a)    3.5 \times 10^{-5} mol L^{-1}

(b)   2.2 \times 10^{-4} mol L^{-1}

(c)    9.2 \times 10^{-6} mol L^{-1}

(d)   1.8 \times 10^{-2} mol L^{-1}

 

6. The solubility product of sparingly soluble salt AX_2 is 3.2 \times 10^{-11}. Its solubility (in mol L^{-1}) is:

(a)    3.4 \times 10^{-4}

(b)   5 \times 10^{-6}

(c)    5.6 \times 10^{-6}

(d)   4.5 \times 10^{-4}

 

7. The solubility of CuBr is 2 \times 10^{-4}mol L^{-1} at 25^0 C . the Ksp value for CuBr is:

(a)    4 \times 10^{-6}

(b)   4 \times 10^{-16}

(c)    4 \times 10^{-11}

(d)   4 \times 10^{-8}

 

8. The solubility of MX_2 type electrolyte is 0.5 \times 10^{-4} mol L^{-1}. The value of Ksp of the electrolyte is:

(a)    1.35 \times 10^{-13}

(b)   2.5 \times 10^{-10}

(c)    5 \times 10^{-13}

(d)   5 \times 10^{-18}

Answers:

1.(a)     2. (b)     3. (c)     4. (a)     5. (b)

6. (c)     7. (d)     8. (c)



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