NOTE: This is a multi-part question. Last time I asked this question, it was rem

Question

NOTE: This is a multi-part question. Last time I asked this question, it was removed for "being two or more questions". I cannot ask this question without including all parts, so please do not flag this question.

Solubility of Al(OH)3

The solubility of Al(OH)3(s) as a function of pH will be calculated. There are two equations to consider:

Al(OH)3(s) ? Al3+(aq) + 3OH-(aq) Ksp = 2.0 x10-32 M4
Al(OH)3(s) + OH-(aq) ? Al(OH)4-(aq) K = 40

Warm up: which of the following statements are correct? (AKA which ones are true??)

Select one or more:

a. Solubility = [Al3+]

b. Solubility = [Al(OH)4- ]

c. Solubility = [Al3+] + [Al(OH)4- ]

d. At low pH, the solubility from the Ksp reaction is more important.

e. At low pH, the solubility from the complex ion reaction is more important.

f. At high pH, the solubility from the Ksp reaction is more important.

g. At high pH, the solubility from the complex ion reaction is more important.

What is the solubility in a solution buffered to a pH of 3.82? What is the solubility in a solution buffered to a pH of 9.72? What is the pH for the minimum solubility? USE 2 DECIMAL PLACES

Explanation / Answer

a. Solubility = [Al3+]

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