The solubility of barium phosphate of molar mass ' M ' g mol ⁻¹ in water is x ~g per 100 mL at 298 K . Its solubility product is 1.08 ( x M )^a (10)^ b . The values of a and b respectively are

Step-by-step solution

Ba ₃ ( PO ₄ )₂ 3 Ba ²⁺+2 PO ₄ ³⁻ aligned & Solubility of Barium = ( x M 10⁻¹ ) & = ( x M 10 ) mol / L & Ba ₃ ( PO ₄ )₂ 3 Ba ²⁺+2 PO ₄ ³⁻ & (3 x M 10 ) (2 x M 10 ) & K _ sp = ( 3 x M 10 )^3 ( 2 x M 10 )^2 aligned aligned & =27 ( x M )^3 10^3 4 ( x M )^2 10^2 & =108 ( x M )^5 10^5 & ~K _ sp =1.08 ( x M )^5 10^7 & a =5 & ~b =7 aligned