4. Consider the following three hydroxide salts: Zn(OH)2: Ksp = 4.5 x 10-¹7 La(OH)3: Ksp = 2.0 × 10-21 a. Write the dissolution reaction equation of Zn(OH)2. b. Write the dissolution reaction equation of La(OH)3. d. Calculate the molar solubility (M) of Zn(OH)2 in water. Give your answer with 3 sig figs. e. Calculate the molar solubility (M) of La(OH)3 in water. Give your answer with 3 sig figs. f. Would it have been possible to predict the relative solubility of the two salts above simply by comparing their Ksp values? Why or why not? g. What is the molar solubility (M) of zinc hydroxide at pH 9.36? Give your answer with 3 sig figs. Hint: take into account [OH] at this pH.
4. Consider the following three hydroxide salts: Zn(OH)2: Ksp = 4.5 x 10-¹7 La(OH)3: Ksp = 2.0 × 10-21 a. Write the dissolution reaction equation of Zn(OH)2. b. Write the dissolution reaction equation of La(OH)3. d. Calculate the molar solubility (M) of Zn(OH)2 in water. Give your answer with 3 sig figs. e. Calculate the molar solubility (M) of La(OH)3 in water. Give your answer with 3 sig figs. f. Would it have been possible to predict the relative solubility of the two salts above simply by comparing their Ksp values? Why or why not? g. What is the molar solubility (M) of zinc hydroxide at pH 9.36? Give your answer with 3 sig figs. Hint: take into account [OH] at this pH.
Chemistry
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Chapter16: Solubility And Complex Ion Equilibria
Section: Chapter Questions
Problem 82AE: Magnesium hydroxide, Mg(OH)2, is the active ingredient in die antacid TUMS and has a Ksp value of...
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Question
![4. Consider the following three hydroxide salts:
Zn(OH)2: Ksp = 4.5 x 10-¹7
La(OH)3: Ksp = 2.0 x 10-21
a. Write the dissolution reaction equation of Zn(OH)2.
b. Write the dissolution reaction equation of La(OH)3.
d. Calculate the molar solubility (M) of Zn(OH)2 in water. Give your answer with 3 sig
figs.
e. Calculate the molar solubility (M) of La(OH)3 in water. Give your answer with 3 sig
figs.
f. Would it have been possible to predict the relative solubility of the two salts above
simply by comparing their Ksp values? Why or why not?
g. What is the molar solubility (M) of zinc hydroxide at pH 9.36? Give your answer with
3 sig figs. Hint: take into account [OH] at this pH.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fef179162-973e-41f0-bb3a-1bfb38a065ce%2F304e6021-2733-4f1c-9db4-912aeb8916f5%2Fzyyn0ct_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4. Consider the following three hydroxide salts:
Zn(OH)2: Ksp = 4.5 x 10-¹7
La(OH)3: Ksp = 2.0 x 10-21
a. Write the dissolution reaction equation of Zn(OH)2.
b. Write the dissolution reaction equation of La(OH)3.
d. Calculate the molar solubility (M) of Zn(OH)2 in water. Give your answer with 3 sig
figs.
e. Calculate the molar solubility (M) of La(OH)3 in water. Give your answer with 3 sig
figs.
f. Would it have been possible to predict the relative solubility of the two salts above
simply by comparing their Ksp values? Why or why not?
g. What is the molar solubility (M) of zinc hydroxide at pH 9.36? Give your answer with
3 sig figs. Hint: take into account [OH] at this pH.
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