Ksp

What is the K_sp expression for Cu₃(PO₄)₂? (Hint: it helps to write an equation!)

• K_sp = [Cu⁺²]³[PO₄^-3]²
• K_sp = [Cu⁺²]²[PO₄^-3]³
• K_sp = [Cu⁺²][PO₄^-3]
• K_sp = [Cu⁺²]³[PO₄^-3]

The correct mathematical expression for finding the molar solubility (s) of Sn(OH)₂ is:

• 2s² = Ksp
• 2s³ = Ksp
• 4s³ = Ksp
• 8s³ = Ksp

If you had an aqueous solution consisting of Ag⁺, Ba⁺², Cd⁺², and Cu⁺² ions, which of the following would precipitate first if CO₃^-2 were added?

• Ag₂CO₃ (K_sp = 8.1 x 10^-12)
• BaCO₃ (K_sp = 5.0 x 10^-9)
• CdCO₃ (K_sp = 1.8 x 10^-14)
• CuCO₃ (K_sp = 2.3 x 10^-10)

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

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

• Ba ²⁺(aq) + Cl₂^-(aq) -> BaCl₂(s)
• BaCl₂(aq) -> Ba ²⁺(aq) + 2Cl^-(aq)
•  BaCl₂(s) -> Ba ²⁺(aq) + 2Cl^-(aq)
• Ba ²⁺(aq) + 2Cl^-(aq) -> BaCl₂(s)

if K_sp < Q_sp then

• no precipitate will form

• precipitate will form

• the reaction will not occur

• the reaction will remain saturated

What does Ksp stand for?

• Solubility product constant

• Kitchen standard procedure

• Solubility product changes

• Insolubility product constant

• (Delta)G

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

• 8 x 10^-18

• 2 x 10^-6

• 4 x 10^-12

• 2 x 10^-12