Molality

Molality (m) = moles of solute / _________________________.

• kilogram of solvent

• kiloliter of solvent

• kilometer of solvent

• ounces of solvent

Molar mass of NaOH is ______________________

• 40 grams/mol

• 50 grams/mol

• 45 grams/mol

• 38 grams/nol

What is the molality of a solution made by dissolving 2 moles of NaOH in 400 grams of water?

• 5 mol/kg. solvent

• 4 mol/kg solvent

• 3 mol/kg. solvent

• 2.5 moles /kg solvent

The elements present in sodium hydroxide are

• sodium oxygen and hydrogen

• sodium , oxygen and chlorine

• sodium, oxygen and boron

• sodium, oxygen and carbon

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

Which sweet tea would you expect to taste the sweetest?

• 1M
• 3M
• 3.1M
• 2.5M

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

When calculating molality, Kg of the following are included in the calculation?

• solvent

• solute

• none of these

• solvent & solute

What is the molality of a solution in which 3.0 moles of NaCl is dissolved in 1.5 Kg of water?

• 2.0 M

• 0.22 m

• 135 m

• 2.0m

Molality (m) = moles of solute / _________________________.

• kilogram of solvent

• kiloliter of solvent

• kilometer of solvent

• ounces of solvent