AP Chemistry Solutions and Solution Stoich Quiz

What is a solute?

• The substance that does the dissolving in a solution.
• The substance that is dissolved into the solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl (MM = 58.45)?

• 0.625 g NaCl
• 625 g NaCl
• 36.5 g NaCl
• 0.04 mol NaCl

A mixture with more solute dissolved in the solvent than is usually soluble is called:

• concentrated

• supersaturated

• saturated

• unsaturated

Tags

NGSS.HS-PS1-5

What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)

• 0.8 M

• 1.5M

• 3.0M

• 6.0M

Which substance is MOST soluble at 0 ºC?

• KI
• NaNO₃
• NaCl
• Ce₂(SO₄)₃

When 20 grams of KNO₃ is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-4

What does like dissolve like mean

• polar solvents dissolve nonpolar solutes

• polar solvents dissolve polar solutes

• clear solutes dissolve in clear solvents

Oil and water are ______

• miscible

• immiscible

The abbreviation for molality is

• M

• mm

• m

• cm

ΔH value in an endothermic reaction is a positive number.

• True
• False