AP Chemistry LT 7: Remediation

How many milliliters of 13.0 M H₂SO₄ are needed to prepare 600.0 mL of 0.10 M H₂SO₄?

• 78,000 mL

• 0.00217 mL

• 4.6 mL

• 2.17 mL

1.69 L of an aqueous solution containing 25.00 g of KCl dissolved in pure water is prepared. What is the molarity of the solution?

• 0.198 M
• 14.8 M

• 5.04 M

• 0.0676 M

What volume of a 0.751 M solution of CaCl₂ contains 1.28 g solute?

• 1.70 L

• 8.66 mL

• 65.1 L

• 15.4 mL

What does it mean for a saturated solution to be an equilibrium system?

• The maximum amount of solvent has dissolved in the solute and no further solvation occurs.

• The solid particles continually dissolve in the solvent at the same rate that dissolved particles fall out of solution.

• The maximum amount of solute has dissolved in the solvent and no further solvation occurs.

• The two substances in the mixture are in equal concentrations and do not react with each other.

If 250. mL of 0.75 M MgF₂(aq) is diluted to 400. mL with distilled water, what is the concentration of F^1-(aq) in the resulting solution?

• 0.469 M

• 0.288 M

• 0.577 M

• 0.938 M

You need to make 2.0 L of a 2.2 M KNO₃. What molarity would the potassium nitrate solution need to be if you were to use only 500 mL of it?

• 0.0088 M

• 0.55 M

• 550 M

• 8.8 M

If you dilute 150 mL of a 2.6 M solution of LiCl by adding 650 mL, what is the concentration of the new solution?

• 0.60 M

• 11.3 M

• 0.488 M

• 13.9 M

What volume of water is needed to create a 1.86 M solution of KCl (molar mass: 74.55 g/mol) if you have 111.8 g of the solid?

• 806 mL
• 0.0806 L

• 2.79 L

• 359 mL

A student is preparing solutions for a laboratory experiment by dissolving solid solutes in liquid solvents. Which action will increase the rate of solubility?

• lowering the temperature of the solvent

• stirring the solute in the solution

• increasing the pressure on the solution

• increasing the particle size of the solute

Which of the following substances is a heterogeneous substance?

• baby oil
• rocky road ice cream
• salt water
• milk