Question

need help with #1

Concert CALCULATIONS lculation of wwerge My [OH-] Mb Nave of Volvo Vb → VWM of base 0.05 x 1 Mb Mavn -> Avhage 20 = 0.04 molle 2011 Show calculation of average Ca) UULI [cat] - [OH-] 2 [Ca2+] - 0.24 = 0.02 mol/2 Show calculation of K, Ksp = [0,02 [0.04] - 3.2x10-5 x coe mol L g moloh Show calculation of molar solubility and solubility in g/L of Ca(OH), Ksp = (3) (25)? Kip = 453 M.Sol. = 3,2/105 Im. Sol = 0.02 moll ksp = 3 0.02 mol/L 174.093 SLIGHTLY SOLUBLE COMPOUND: REPORT FORM

Answer 1

Solution:

The experimental value of ksp = 3.2 x 10^-5

Literature value for ksp = 4.68 x 10^-6

Thus, the experimental value is higher than literature value of solubility product of Ca(OH)2.

Ksp of calcium hydroxide is calculated as,

Ksp = [Ca2+] [OH-]^2

The higher value of Ksp is due to the high solubility of Ca(OH)2 in water. The solubilty of calcium hydroxide is highest in cold water. Its solubility decreases with increasing temperature. Thus, if solution was prepared in water having lower temperature than 25°C, then solubility will be higher, therefore solubility product is also increases.