Solubility and Equilibrium

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AP Chemistry › Solubility and Equilibrium

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1

Calculate the molar solubility of AgBr in 0.050 M AgNO3 at room temperature. The Ksp of AgBr is 5.4 x 10-13.

1.08 x 10-11 M

CORRECT

2.16 x 10-11 M

0

1.08 M

0

2.16 M

0

1.57 x 10-12 M

0

Explanation

2

Would the molar solubility of Cr(OH)3 increase or decrease as the pH is lowered (i.e. made more acidic)?

Increase

CORRECT

Decrease

0

There is no change

0

Can not be determined

0

Explanation

Since Cr(OH)3 is a basic salt, decreasing the pH makes it more soluble.

3

Calculate the molar solubility of SrF2 in 0.023M NaF. The Ksp for SrF2 is 4.3 x 10-9.

3.2 x 10-3 M

0

1.6 x 10-3 M

0

8.1 x 10-6 M

CORRECT

3.2 x 10-5 M

0

5.2 x 10-4 M

0

Explanation

4

Calculate the molar solubility of Mn(OH)2 at pH 9.5. The Ksp for Mn(OH)2 is 1.6 x 10-13.

1.5 x 10-3 M

0

2.4 x 10-3 M

0

3.5 x 10-4 M

0

1.6 x 10-4 M

CORRECT

2.1 x 10-5 M

0

Explanation

5

Calculate the molar solubility of CaF2 (Ksp = 3.9 x 10-11) in a room temperature solution of 0.010 M Ca(C2H3O2)2.

1.6 x 10-2 M

0

3.2 x 10-2 M

0

4.2 x 10-4M

0

3.7 x 10-4 M

0

3.1 x 10-5 M

CORRECT

Explanation