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How do chemists describe the "strength" or concentration of a solution?

• molarity

• concentrated

• diluted

• strong

Tags

NGSS.HS-PS1-5

How do chemists calculate molarity?

• grams/mole

• moles/Liter

• ounces/container

What is the molarity of 0.50 moles of NaCl in 0.25 L of solution?

• 1.0 M

• 0.5 M

• 2.0 M

• 1.5 M

Determine the molarity of 2.25 moles of sulfuric acid, H₂SO₄, dissolved in 725 mL of solution.

• 322 M

• 3.10 M

• 0.325 M

• 2.25 M

Tags

NGSS.HS-PS1-5

How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?

• 10.74 mol

• 0.0695 mol

• 1.07 mol

• 62.7 mol

Drag the variables to the triangle in their correct place...

b

a

c

mol

L

M

In a saturated solution, if you add more solute, it will ​ (a)   ​ and settle at the ​ (b)   of the container.

• not dissolve
• bottom
• evaporate
• dissolve
• top

Tags

NGSS.MS-PS1-2

Match the following definitions:

• contains more solute than normal

• Supersaturated solution

• More solute can be dissolved

• Unsaturated solution

• Maximum amount of solute dissolved

• Saturated solution

Label the x and y axis with the correct units

a

b

Temperature

Solubility

Which solute is the most soluble at 10 ⁰C?

• KI

• NH₄Cl

• KClO₃

• NH₃

Tags

NGSS.HS-PS1-5