When CH₃OH is dissolved in water, how many particles are in solution?

• 1

• 3

• 4

• 5

• 6

When KCl (potassium chloride) is dissolved in water, how many particles are in solution?

• 1

• 2

• 3

• 4

• 6

Using the graph above, which compound would dissolve the fastest at 20° C, KCl, NaCl, KNO₃, or KClO₃?

• KCl

• NaCl

• KNO₃

• KClO₃

Tags

NGSS.HS-PS1-5

What is the molality (not molarity) of a solution when 500g water are used to dissolve 21g CuSO₄?

• 0.3 m

• 3.4 m

• 1.6 m

• 0.8 m

A solution that has the maximum amount of solute dissolved in the solvent is called __________________.

• saturated

• supersaturated

• unsaturated

• suspension

How many grams of NaCl need to be dissolved in 50g of water to make a 0.2m solution?

• 1.8g

• 0.1g

• 1.6g

• 0.6g

A solution that has more than the maximum amount of solute dissolved in the solvent is called __________________.

• saturated

• supersaturated

• unsaturated

• suspension

What is the name for a substance that dissolves in water but does not form ions or conduct an electric current?

• electrolyte

• nonelectrolyte

• saturated

• insoluble

The boiling point of a solution is ______ the boiling point of the pure solvent.

• higher than
• the same as
• lower than
• higher or lower than

Tags

NGSS.HS-PS3-4

Molality is measured in

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