How is molality used?
Molality involves moles: it is the ratio of moles of solute to kilograms of solvent. Molarity, on the other hand, which should not be confused with molality, is the ratio of moles of solute to liters of solution. Colligative (collective) property calculations tend to use molality as opposed molarity.
Suppose a snowstorm is coming, all the stores are closed, and you need antifreeze for your car's radiator to prevent your car's engine from freezing or splitting. You must make your own antifreeze using materials you have at home. You will need enough soluble antifreeze solution to replace about
- What are the most important differences between molality and molarity? (use the second resource link if necessary)
- What are some similarities and differences of the various ways to express concentrations of solutions?
- Based upon your knowledge on molality and molarity, which do you believe is more convenient in expressing concentrations of solutions and why?
- To help you better understand molality, use the third and fourth resource links to review and test you skills.