Khan Academy: Lab Values and Concentrations: Calculate Your Own Osmolarity

Find out how tonicity is determined by ions that don't move across membranes and how it affects the movement of water. Rishi is a pediatric infectious disease physician and works at Khan Academy. [11:02]

Watch how centrifuging your blood decomposes it, and find out what it's made up of. The instructor is a pediatric infectious disease physician. [11:09]

Learn the difference between molarity and molality differ. Rishi is a pediatric infectious disease physician and works at Khan Academy. [8:00]

A video lecture showing how to figure out how to calculate an equivalent and how it relates to a mole. Lecture takes the viewer through several calculations. [10:18]

Learn how to use three lab values (Sodium, glucose, and BUN) to approximate your plasma osmolarity. Rishi is a pediatric infectious disease physician and works at Khan Academy. [12:57]

Learn how to use three lab values (Sodium, glucose, and BUN) to approximate your plasma osmolarity.

Find out how simple it is to calculate your BMI and the common BMI categories from a pediatric infectious disease physician who works at Khan Academy. [7:20]

Find out how simple it is to calculate your BMI and the common BMI categories. Rishi is a pediatric infectious disease physician and works at Khan Academy.

A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower...

See examples of calculating the pH of a buffer solution using the Henderson-Hasselbalch equation, including the pH of the buffer solution after adding some NaOH. [11:38]