MHT CET202411 May 2024Evening ShiftChemistrySolutionsActual
The solubility of CaCO ₃ is 7 10⁻⁵ ~mol dm ⁻³ at 25^ C . What is its solubility product at same temperature?
Options
- A6.7 10⁻⁹
- B9.0 10⁻⁹
- C1.12 10⁻⁹
- D4.9 10⁻⁹
Correct answer
D. 4.9 10⁻⁹
Step-by-step solution
array ll & CaCO _ 3( ~s ) Ca _ ( aq ) ²⁺+ CO _ 3( aq ) ²⁻ & x=1, y =1 & ~K _ sp =x^x y ^ y S ^ (x+ y ) =(1)^1(1)^1 ~S ¹⁺¹= S ^2 & ~K _ sp = (7 10⁻⁵ )^2=49 10⁻¹⁰=4.9 10⁻⁹ array