Question

The mass of aluminum hydroxide (Ksp=1.9E-33) that is dissolved in 250 mL of a saturated solution is____ grams.

Answer 1

cag] P. The mass y aluminium hydroacide Al(OH), (kspa yg x1039) that is dissolved in 250 ml g a salurated Solution is... I grams. → ksp - 1.9x1033 A1 (OH)3 (6) Alt + 3 (06) ago keq à [A13+] [on = 1.981033 How we can calculato e actuall concentration froD IC table 애 Ini Hal concentration Change in concentoction @qwliboium conantratio A137 + +38 82 keq = [x] [3x] = 1.9x1033 2*2783 - 19x1533 27.84 : 19X10-33 204 = 1.9860-33 2 = 7.09x10 35 x = 2.9x109 Saturation concentration q [AI COH),J = 2.9% 10 mol/l wow 2.94109 mol Akord in 1 L 27

In 250 md saturated solution contains = 2.9x109 - 7. 2x10-10 malla A molecular werghe q Al(OH)2 = 78.09 wow , convert it into mole to grams. mass = n (ra) - (4:2x10-10) (78.0 g/mol) mass = 5.66 X 100 g/l