Kelarutan Ag₂CO₃ (Mr = 276) per liternya yakni …
jawaban
Ksp Ag₂CO₃ = 3,2 × 10⁻¹¹
Ag₂CO₃ ➙ 2 Ag⁺ + CO₃²⁻ ; dimana
x 2x x
Ksp = 4 x³
3,2 . 10⁻¹¹ = 4 x³
3,2 . 10⁻¹² = 4 x³
x = ∛32.10⁻¹²
4
= 2 . 10⁻⁴ M
Kelarutan Ag₂CO₃ = 2 . 10⁻⁴ × 276 × 10⁻³ mgr = 55,2 miligram