Solution Concentration and Properties

Which of these is a factor that affects dissolving or dissociation?

• Increasing the temperature of 50 g of sugar dissolved in water.

• Breaking up 50 g of sugar cubes before dissolving in water.

• Stirring a pack of Kool-Aid crystals in water.

• All of the above are correct.

Determine the molarity of a solution that is prepared by diluting 200 mL of 0.450 M K2Cr2O7 to 600 mL of water.

• 0.075 M

• 0.112 M

• 0.150 M

• 0.225 M

How many grams of KNO3 must be dissolved in 100 grams of H2O at 40°C to be considered a saturated solution?

• 52 g

• 60 g

• 80 g

• 115 g

What is the concentration of a solution if 2.0 moles of sodium chloride are dissolved in 2000 milliliters of water?

• 0.5 M

• 1.0 M

• 2.0 M

• 4.0 M

What is the concentration of a solution when 50.0 mL of a 2.25M solution of KBr is diluted to 1.000 L?

• 0.113 M

• 0.225 M

• 0.250 M

• 0.450 M

Which of the following contains the maximum amount of solute a solvent can dissolve?

• unsaturated

• supersaturated

• saturated

• diluted

The process of decreasing the concentration of a solution by adding more solvent is _____________.

• dilution

• evaporation

• filtration

• sublimation

Sea water is an example of a solution. The solvent is _____________.

• water

• salt

• sand

• carbon dioxide

Which term correctly describes a solution containing 50g KCl in 100g H₂O at 50°C?

• Oversaturated

• Supersaturated

• Saturated

• Unsaturated

Using the solubility chart, at which temperature can you dissolve 40 g of KCl in 100 g of water?

• 10 °C

• 35 °C

• 60 °C

• 86 °C