Ksp and solubility

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)

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

• 2x² = Ksp

• 2x³ = Ksp

• 4x³ = Ksp

• 8x³ = Ksp

What is the K_sp expression for Cu₃(PO₄)₂?

• 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]

Tags

NGSS.HS-PS1-7

if K_sp < Q_sp then

• no precipitate will form

• precipitate will form

• the reaction will not occur

• the reaction will remain saturated

The pH at the equivalence point of the titration of a strong acid with a strong base is:

• 3.9
• 4.5
• 7.0
• 8.2

Which of the following is a conjugate acid/base pair?

• HCl/OCl^-
• H₂SO₄/SO₄^2-
• NH₄⁺/NH₃
• H₃O⁺/OH^-

A substance that ionizes completely in solution is

• an insulator.
• a strong electrolyte. 
• a weak acid.
• a non-electrolyte.

Which of the following substances would likely dissolve in water?

• Zn(NO₃)₂
• AgCl
•  NaOH
• More than one of the above would disolve in water.

Which acid base pair produce the titration curve shown below?

• HCI + KOH

• HCI + NH₃

• CH₃COOH + KOH

• CH₃COOH + NH₃

Which type of titration is shown by this titration curve?

• Titration of a strong acid by a strong base 
• Titration of a weak acid by a strong base 
• Titration of a strong base by a strong acid 
• Titration of a weak base by a strong acid