U7L2E3: Solubility Equilibria

The amount of solute actually dissolved in a given amount of solvent is known as______________________.

• dilution

• solubility or concentration

• saturated solution

• supersaturated mixture

Solubility product, Ksp refers to the...

• the level at which a solute dissolves in solution.

• the level at which a solvent dissolves in solution.

• the level at which the forward and reverse reactions are equal

• Solid precipitates formed in solution

Which of the following is commonly used to describe the solubility of a compound?

• mass of solution / volume of solute

• mass of solute / moles of solute

• moles of solution / mass of solute

• mass of solute / volume of solution

When a solvent contains as much of the solute as it can hold, the solution is said to be

• supersaturated
• diluted
• saturated
• unsaturated

Which of the following shows the correct dissolution reaction for solid BaCl₂?

• 
• 
• 
• 

BaCl₂(s) -> Ba ²⁺(aq) + 2Cl^-(aq)

For this reaction, write the Ksp expression.

• Ksp = [Ba][Cl]

• Ksp =  [Ba2+][Cl-]^2

• Ksp = [BaCl2(s)]

• Ksp = [Ba]^2[Cl]^2

What is the K_sp expression for an ionic compund of BaSO_{4 (s)} breaking into its ionic species.

• K_sp= [Ba²⁺][SO₄^2-]

• K_sp= [Ba²⁺][4SO₄^2-]⁴

• K_sp= [Ba²⁺][4SO₄^2-]

• K_sp= [2Ba²⁺][4SO₄^2-]

For an exothermic reaction,

as the temperature of the solution increases,

• solubility of the salt increases ; K_sp increases

• solubility of the salt increases ; K_sp decreases

• solubility of the salt decreases ; K_sp increases

• solubility of the salt decreases ; K_sp decreases

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

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