Molarity v Molality

Molality (m) = moles of solute / _________________________.

• kilogram of solvent

• kiloliter of solvent

• kilometer of solvent

• ounces of solvent

Molarity is measured in _____.

• moles per g.

• mols per L.

• moles per mm.

• moles per mL.

What is a solvent?

• The substance that does the dissolving in a solution.

• The substance that is being dissolved in a solution.

• The mixing of different substances.

• The process in which neutral molecules lose or gain electrons.

Which equation is used to find molarity?

• Moles solute/L solution

• Moles solute/kg solution

• Moles solute/kg solvent

• Grams solute/L solution

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 of the following substances is a heterogeneous substance?

• baby oil
• rocky road ice cream
• salt water
• milk

Which sweet tea would you expect to taste the sweetest?

• 1M
• 3M
• 3.1M
• 2.5M

A beaker contain 795 mL of 0.35M of Na₂SO₄ solution. Calculate the mass of Na₂SO₄.

• 39.55 g

• 40.00 g

• 39.05 g

• 39.5 g

The _____ is the thing being dissolved.

• solute

• solvent

How do you convert from grams to moles?

• Divide by the molar mass

• Multiply by the molar mass

• Divide by Avogadro's number

• Multiply by Avogadro's number