Chemistry 2: Chapter 16.2

In a concentrated solution there is ____________.

• No solvent

• A large amount of solute

• A small amount of solute

• No solute

What is the molarity of a solution that contains 6 moles of solute in 2 liters of solution?

• 6M

• 12M

• 7M

• 3M

In which of the following is the solution concentration expressed in terms of molarity?

• 10g of solute / 1000g of solution

• 10g of solute / 1000mL of solution

• 10mL of solute / 1 L of solution

• 10 mol of solute / 1 L of solution

Which of the following operations yields the number of moles of solute?

• Molarity x moles of solution

• Molarity x liters of solution

• Molarity x mass of solution

• Moles of solution / volume of solution

What is the molarity of a solution containing 7.0 moles of solute in 569 mL of solution?

• 81M

• 0.081M

• 12M

• 4.0M

What is the molarity of 200 mL of solution in which 2.0 moles of sodium bromide is dissolved?

• 2.0M

• 10M

• 0.40M

• 4.0M

What is the number of moles of solute in 250 mL of a 0.4M solution?

• 0.1 mol

• 0.16 mol

• 0.62 mol

• 1.6 mol

What is the molarity of a solution containing 56 grams of solute in 959 mL of solution? (molar mass of solute = 26g/mol)

• 1.5M

• 2.2M

• 2.1M

• 0.0022M

What mass of sucrose, C₁₂H₂₂O₁₁, is needed to make 500.0 mL of a 0.200M solution?

• 34.2 g

• 100 g

• 17.1 g

• 68.4 g

What mass of Na₂SO₄ is needed to make 2.5 L of 2.0M solution? (Na=23 g; S=32 g; O=16 g)

• 178 g

• 284 g

• 356 g

• 710 g