8.4 AP Chemistry Ksp quick check quiz!

The solubility of CuI is 2 x 10^-6 molar. What is the solubility product constant, K_sp, for CuI?

• 4 x 10^-12

• 2 x 10^-12

• 1.4 x 10^-3

• 2 x 10^-6

The K_sp expression for the solubility of silver chromate, Ag₂CrO₄, is

• K_sp = [Ag⁺]²[CrO₄^2-]

• K_sp = [Ag⁺][CrO₄^2-]

• K_sp = [Ag⁺][CrO₄^2-]²

• K_sp = [Ag⁺]²[CrO₄^2-]⁴

Calculate the molar solubility of AgCl in a 0.10 M solution of NaCl. K_sp of AgCl is 1.8 x 10^-10

• 1.3 x 10^-5 M

• 5.5 x 10^-1 M

• 4.2 x 10^-5 M

• 1.8 x 10^-9 M

Three saturated solutions (X, Y, and Z) are prepared at 25^oC. Based on the information in the table, which of the following lists the solutions in order of increasing [M⁺] ?

• B < C < A

• A < C < B

• C < A < B

• B < A < C

Based on the K_sp values in the table above, a saturated solution of which of the following compounds has the lowest [Cl^–] ?

• PbCl₂

• CuCl

• AgCl

• NaCl

Solutions of lead(II) nitrate and potassium iodide react according to the following equation:

Pb(NO₃)₂(aq) + 2 KI(aq) → PbI₂(s) + 2 KNO₃(aq)

A molecular-level representation illustrating solutions of the reactants lead(II) nitrate and potassium iodide is shown in the image. Which of the following would be the best molecular-level representation after the reaction has taken place?

• a

• b

• c

• d

Solutions of lead(II) nitrate and potassium iodide react according to the following equation:

Pb(NO₃)₂(aq) + 2 KI(aq) → PbI₂(s) + 2 KNO₃(aq)

Which species act as spectator ions in this reaction?

• K⁺, NO₃^-

• Pb²⁺, I^-

• K⁺, Pb²⁺

• I^-, NO₃^-

Pb²⁺_(aq) + 2Cl^-_(aq) → PbCl_2(s)

A chemist mixes a dilute solution of lead(II) perchlorate with an excess of potassium chloride to precipitate lead(II) chloride (K_sp = 1.7 x 10^-5). The net ionic equation is given above for the reaction.

Which of the following particulate views represents the experiment after the reactants are mixed thoroughly and the solids are given time to precipitate?

• (A)

• (B)

• (C)

• (D)

Tags

NGSS.HS-PS1-2