Question

Preguntas adicionales 1. Compare el valor de la concentración de [OH"] obtenido en la Parte I con el valor obtenido de la concentración de [OH"] en la Parte II. 2. Cómo la adición de CaCl2 afecta la solubilidad molar del compuesto Ca(OH)2? Explique justifique con los datos experimentales. 3. Cuando se agrega 0.250 g de fluoruro de estroncio (SrF2) a 1.00 L de agua, la sal se disuelve muy poco. a) Escriba la ecuación del equilibrio. b) Escriba la expresión de Kps.

2.How does the addition of CaCl2 affect the molar solubility of compound Ca (OH) 2? Explain and 2. justify with the experimental data

3.When 0.250 g of strontium fluoride (SrF2) is added to 1.00 L of water, the salt dissolves very little

a) Write the equilibrium equation

b) Write the expression from Kps

c) If the equilibrium finds that the concentration of Sr2 is 1.03x 103 M, what is the value of Kps for SrF2?

4. It is known that the Kps value for BaCO3 salt is 8.1 x 109

a) Write the equilibrium equation.

b) Write the Kps expression.

c) Calculate the solubility of salt in pure water in moles per liter (molar solubility).

I don't have the 2 data for now, ignore the 2

Answer 1

2) calona = cat2 + 2016; ksp Ksp = cca +2] com ]2 on addition of call it will dissociate as Ca+2 4 cí and here Cath is common in due to common in the reaction will shift to the backward dirn and molar solubility of caconda will decrease VH2O = I lit 3) a) 6 c) soka = 0.25gm VH2O = 1 Lit Sofz, = short mest z fcandy Kps = [Sy+2] [f-J? Sok = S7+2 + 2F- ;kps [S8+2] = 1.03 x163M ES Kps = (s) (25)2 Kps = us? Kps = 4 (103 x153)3 | Kps = 4.37 109 ane. s 25