Molality

How many moles of BaI₂ are present in 0.250 kg of H₂O if the concentration is 0.3 m?

• 0.075 mol

• 0.83 mol

• 1.25 mol

Molality is defined as ________________________

• a. the moles of solute per kilogram of solvent

• b. moles of solute per liter of solution

• c. mass of solute/ mass of solution

• d. mass of solute/ mass of solvent X 100

Molality (m) = moles of solute / _________________________.

• a. kilogram of solvent

• b. kiloliter of solvent

• c. kilometer of solvent

• d.ounces of solvent

Which equation is used to find molality?

• Moles solute/L solution

• Moles solute/kg solution

• Moles solute/kg solvent

• Grams solute/L solution.

What is the molality of a solution in which 30.0 moles of NaCl is dissolved in 1.5 Kg of water?

• a. 20.0 M

• b. 2.2 m

• c. 135 m

• d. 20.0m

What are the units of molality

• a. m

• b. M

• c. ML

• d. ml

Tags

NGSS.HS-PS1-5

What is the molality of a solution when 48 g of NaCl is dissolved in 5 kg of water?

• 557 m

• 4.14 m

• .17 m

• 6.04 m

Molality is defined as the moles of solute per kilogram of what?

• solvent

• solution

• solute

• mixture

Which of the following is the correct formula for calculating molality?

• Moles of solute per liter of solution

• Moles of solute per kilogram of solvent

• Grams of solute per liter of solvent

• Moles of solute per gram of solvent

What is the molality of a solution containing 5 moles of glucose in 2 kg of water?

• 2.5 m

• 0.4 m

• 10 m

• 5 m