What's the Point of Molality?!?

What is the primary difference in the calculation of molarity and molality?

• Molarity uses moles of solute per liter of solvent, while molality uses moles of solute per kilogram of solution.

• Molarity uses moles of solute per liter of solution, while molality uses moles of solute per kilogram of solvent.

• Molarity uses grams of solute per liter of solution, while molality uses grams of solute per kilogram of solvent.

• Molarity uses moles of solvent per liter of solution, while molality uses moles of solvent per kilogram of solute.

Why is preparing a molal solution generally considered simpler than preparing a molar solution?

• Molal solutions require less solute.

• Molal solutions only require measuring the mass of the solute and solvent, while molar solutions require precise volume measurements using specialized glassware.

• Molar solutions are always more concentrated.

• Molal solutions do not require any solvent.

How does a change in temperature affect the molarity of a solution?

• Molarity increases with increasing temperature because the volume of the solution expands.

• Molarity decreases with increasing temperature because the volume of the solution expands.

• Molarity remains constant regardless of temperature changes.

• Molarity is only affected by pressure, not temperature.