Solutions Review

Calculate the molarity of a solution prepared by dissolving 78.2 grams of CaCl₂ in 500.0mls of water

• 0.156 M
• 0.709 M
• 0.353 M
• 1.41 M

As the pressure decreases the solubility of a gas in a liquid

• increases
• decreases

How much of the 12.0 M stock solution do you need to prepare 250 mls of .20M HCl?

• 15,000 mls
• 4.17 mls
• 9.6 mls
• 0.0096 mls

What is the concentration, in percent by volume, of 15.3 mL of solute in 2.65 L of solution?

• 0.58%
• 0.0058%
• 5.8%

A solution is made from 7 grams of solute dissolved in 1450 ml of solution. What is the concentration of this solution in ppm?

• 482.7 ppm

• 4,827.6 ppm

• 48,276

Molarity is measured in

• moles per kg
• mols per L
• moles per kJ
• moles per mL

The ___ is the thing being dissolved

• solute
• solvent