3. The Ksp value for magnesium carbonate in a saturated aqueous solution of the salt at 25°C is 1.0 ×10−5. What is the molar solubility of magnesium carbonate at this temperature?

Select one:

 a. 

3.16 ×10−3M

 

 b. 

1.0 ×10−5M

 

 c. 

5.47 ×10−16M 

 d. 

8.19×10−3M

 

 e. 

4.06×10−2M

 

 

 

 

 

 

 

 

4. What is the concentration of silver (I) ion in a saturated solution of silver ( I ) carbonate containing 0.30 M Na2CO3? For Ag2CO3, Ksp = 8.6 ×1012.Ag2CO3, Ksp = 8.6 ×10–12.

Select one:

 a. 

6.0×10–4M

 

 b. 

2.0×10–9M

 

 c. 

8.0×10–9M

 

 d. 

5.4×10–6M

 

 e. 

8.0×10–4M

 

 

5. What is the correct mathematical expression for finding the molar solubility ( s ) of Mg(OH)2?

Select one:

 a. 

2s3=Ksp2s3

 

 b. 

4s3=Ksp4s3

 

 c. 

108s5=Ksp108s5

 

 d. 

2s2=Ksp2s2

 

 e. 

8s3=Ksp

 

 

 

 

 

6. What is the molar solubility ( in moles/L ) of aluminum hydroxide at 25°C? The solubility product constant for aluminum hydroxide is 4.6 × 10–33 at 25°C.

Select one:

 a. 

3.6×10–9 mol/L

 

 b. 

8.2×10–10 mol/L

 

 c. 

2.8×10–7 mol/L

 

 d. 

5.3×10–15 mol/L

 

 e. 

1.8×10–31 mol/L

 

 

7. What is the molar solubility of MgF2 in a 0.80 Mg(NO3)2 solution? For MgF2, Ksp = 8.4 ×10–8.

 

Select one:

 a. 

8.0×10–8 M8

 

 b. 

2.3×10–4 M

 

 c. 

2.0×10−8 M

 

 d. 

1.6×10–4 M

 

 e. 

3.2×10–3 M

 

 

8. What is the solubility product expression for Ca3(PO4)2?

Select one:

 a. 

Ksp= [Ca32+][(PO43–)2

 

 b. 

Ksp= [3Ca2+]3[2PO43–]2

 

 c. 

Ksp= [Ca2+][2PO43–]

 

 d. 

Ksp= [Ca3+]2[PO42–]3

 

 e. 

Ksp= [Ca2+]3[PO43–]2

 

 

 

 

 

9. What is the solubility product expression for Mg(OH)2?

Select one:

 a. 

Ksp= [Mg+][2OH–]

 

 b. 

Ksp= 2[Mg2+][OH–]2

 

 c. 

Ksp= [Mg2+][OH–]2

 

 d. 

Ksp= [Mg2+][2OH–]2

 

 e. 

Ksp= [Mg2+][OH–]

 

 

 

10. Which of the following, when added to a saturated solution of LiCl, will cause a decrease in the molar concentration of Li+ relative to the original solution?

  1. HCl (g)

  2. LiCl (s)L

  3. MgCl2 (s)

Select one:

 a. 1 only

 b. 2 only

 c. 3 only

 d. 1 and 3

 e. 1, 2, and 3

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Status NEW Posted 19 Jun 2017 12:06 AM My Price 8.00

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