Which of the following statements is held true about the common-ion effect on the equilibrium of solubility of salt ?

(you may choose more than one answer)

• Adding common-ion to the solution containing dissolved salt cause the solubility equilibrium shifts to the formation of undissolved salt

• Adding common-ion to the solution containing dissolved salt cause the numerical value of Ksp of corresponding salt changes

• Solubility of salt in solution containing common-ion is greater than that of pure water.

Consider a beaker containing 100 ml of water, with solid AgCl on the bottom.

Which of the following statements is held true if NaCl is added to the solution?

(you may choose more than one answer)

• The amount of AgCl solid at the bottom of the beaker increases

• The amount of AgCl solid at the bottom of the beaker decreases

• The concentration of dissolved Ag⁺ ion in the solution stays the same

• The concentration of dissolved Ag⁺ ion in the solution changes

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-7

Which of the following effect increase the solubility of Ca(OH)₂ ?

Ca(OH)₂(s) ↔ Ca²⁺(aq) + 2OH^-(aq)

(you may choose more than one answer)

• Adding solid NaOH

• Adding an acid solution

• The pH of solution is adjusted to be below 7

• Adding solid CaCl₂

An unknown salt, M₂Z, has a K_sp of 3.3 x 10^-9. Calculate the solubility in mol/L of M₂Z.

• 2.9 x 10^-5 M
• 5.7 x 10^-5 M
• 9.4 x 10^-5 M
• 3.7 x 10^-5 M

Tags

NGSS.HS-PS1-7

What will happen if some solid AgNO₃ is added to a saturated solution of AgCl ?

• The AgNO₃ will not dissolve

• More solid AgCl will dissolve

• More solid AgCl will produced

• There will be no effect on AgCl equilibrium

Tags

NGSS.HS-PS1-5

Which of the following effect increase the solubility of Ca(OH)₂ ?

Ca(OH)₂(s) ↔ Ca²⁺(aq) + 2OH^-(aq)

(you may choose more than one answer)

• Adding solid NaOH

• Adding an acid solution

• Adding solid CaCl₂

The K_sp expression for a saturated solution of Ca₃(PO₄)₂ is

• K_sp = [Ca²⁺][PO₄^3-]

• K_sp = [3Ca²⁺][2PO₄^3-]

• K_sp = [Ca²⁺]³[PO₄^3-]²

• K_sp = [3Ca²⁺]³[2PO₄^3-]²

What will happen if some solid AgNO₃ is added to a saturated solution of AgCl ?

• The AgNO₃ will not dissolve

• More solid AgCl will dissolve

• More solid AgCl will produced

• There will be no effect on AgCl equilibrium

Tags

NGSS.HS-PS1-5

How could you change a saturated solution to an unsaturated solution?

• Add solvent

• Add solute

Tags

NGSS.MS-PS1-2

The solubility of HgS is 5.5 x 10^-27 mol/L. What is K_sp for HgS?

• 4.0 x 10^-3

• 8.2 x 10^-4

• 1.3 x 10^-13

• 3.0 x 10^-53