previous 19of Part A Calculate the molar solubility in water a is a sparingly so

Question

previous 19of Part A Calculate the molar solubility in water a is a sparingly soluble compound, in this case a base, with a soutlay product. K of 5.61 x 10 It is used to control the pH and provide nutrients in the biological (microbial treatment of municipal wastewater streams. Based onregven value ofthe Express your answer with the appropriate units. molar solubility 241x10 M Subm Hints My Answers Give up Revie Part The common-ion effect and solubilty The solubay of a slightly soluble compound can be greatly affected byee addson of a soluble ions in the added soluble compound being identical to one of the ions of the ion re a shit in common ion is to greatly reduce the solubility of the slightly solublecomcound. In other words, the addition of the common the equilibrium of the slightly soluble compound. Part B the molar soluburyin NaOH Based on the given value of the K v, what is the molar solubility of Mg(OH), in o.110 M NaoH? Express your answer with the appropriate units. molar solubaty s 4.73 10 is M Hints My Answers Give up Review Part Incorrect: Try Again: 4 attempts remaining

Explanation / Answer

B)

Calculate Molar solubility of Mg(OH)2 in NaOH

First,

NaOH --> NA+ + OH- will dissociate almost at 100% so

[OH-] = 0.11 M

now

Ksp = [Mg2+][OH-]^2

5.61*10^-11 = S*(0.11)^2

S = (5.61*10^-11) / ((0.11)^2)

S = 4.63636*10^-9 M

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