Question

The CORRECT relationship between molar solubility (S) and solubility product (K_sp) for salt, MgC₂O4 is ____________.

Options

• K_sp = S²

• K_sp = 4S³

• K_sp = 2S³

• K_sp = 27S⁴

Answer 1

The CORRECT relationship between molar solubility (S) and solubility product (K_sp) for salt, MgC₂O4 is K_sp = S².

Explanation:

\[\ce{MgC2O4_{(s)} ⇌ Mg^{2+}_{( aq)} + C2O^{2-}_{4(aq)}}\]

x = 1, y = 1

K_sp = x^x y^y S^x+y

= (1)¹ (1)¹ S¹⁺¹

= S²