Molarity, Molality

Molality (m) = moles of solute / _________________________.

• kilogram of solvent

• kiloliter of solvent

• kilometer of solvent

• ounces of solvent

Molar mass of NaOH is ______________________(Na =23, H=1, O=16)

• 40 grams/mol

• 50 grams/mol

• 45 grams/mol

• 38 grams/nol

molality is defined as ________________________

• the moles of solute per kilogram of solvent

• moles of solute per liter of solution

• mass of solute/ mass of solution

• mass of solute/ mass of solvent X 100

Molarity is measured in _____.

• moles per g.

• mols per L.

• moles per mm.

• moles per mL.

What do molarity and molality have in common?

• Both have "moles solute" in the numerator

• Both have "kg solvent" in the denominator

• Both have "L solution" in the denominator

• Both have "moles solution" in the denominator

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

(Na =23, H=1, O=16)

• 0.8 M

• 1.5M

• 3.0M

• 6.0M

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

• 1074 mol
• 0.069 mol
• 1.07 mol
• 62.7 mol