Khan Academy: Molarity vs. Osmolarity

Molarity and osmolarity are two distinct concepts. Molarity (M) is the number of moles of solute per liter of solution. The unit of molarity is the mole (mol). Osmolarity (Osm/L) is the total concentration of all solutes in the solution....

Learn the definitions of a solution, solute, and solvent. Understand how molarity is used to quantify the concentration of solute, and comcalculations related to molarity.

See how each of these terms (molarity, molality, osmolarity, osmolality, tonicity) tells us something different about a solution in the Khan Academy video. [4:03]

This video teaches the viewer how to read a position vs. time graph. It explains how to use the graph to determine the following quantities: displacement, distance, average velocity, average speed, instantaneous velocity, and...

Video tutorial explains how to read an acceleration vs. time graph and shows how the area under the curve gives the change in velocity, while providing a few examples. [14:37]

Learn how molarity and molality differ. The molality of a solution is equal to the moles of solute divided by the mass of solvent in kilograms, while the molarity of a solution is equal to the moles of solute divided by the volume of...

This video lesson from Khan Academy provides information about the circulatory system. Students will learn basic information about the difference between arteries and veins. The differences among atherosclerosis, arteriosclerosis, and...

See how each of these terms tells us something different about a solution.

Learn how to read an acceleration vs. time graph in this video. Explore how the area under the curve gives the change in velocity. Observe a couple examples. [14:37]

Investigate how to use force vs. time graph to find the change in momentum in this video. See how to solve an example problem to find the final velocity of a spaceship. [8:13]