Solutions and Equilibrium

Which of the following substances is NOT soluble in water?

• HCl

• KOH

• CBr₄

• NH₃

How many grams of KNO₃ can dissolve in 100g of water at 50 *C?

• 105g

• 60g

• 32g

• 85g

What word best describes 130g of KI dissolved in 100g of water at 10 *C?

• unsaturated

• supersaturated

• saturated

• hemisaturated

Which of the following is the correct, balanced dissociation equation for Na₂SO₄?

• Na⁺ + S^-2 + O^-2

• Na⁺² + SO₄^-2

• 2 Na + S + 4 O

• 2 Na⁺ + SO₄^-2

Which of the following substances would have the GREATEST colligative effect?

• AlF₃

• Mg₃(PO₄)₂

• C₁₂H₂₂O₁₁

• NaBr

Which of the following substances is considered a weak electrolyte?

• NaOH

• HCl

• CBr₄

• NH₃

What is the molarity of 25.0g of NaOH in 750 mL of solution?

• 0.053 M

• 0.033 M

• 0.833 M

• 33.3 M

Which of the following will shift the equilibrium shown to the right?

• decrease pressure

• increase temperature

• add nitrogen

• remove hydrogen