Khan Academy: Lab Values and Concentrations: What Is an Equivalent?

What makes air fresh or not so fresh? The solution is solution chemistry! Explore homogeneous mixtures with a video from the JFR Science series. The narrator explains a variety of solution terms, how to classify solutions, and how people...

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]

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]

This article explores exactly what is considered alive but reviewing over the characteristics of life.

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

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.

Do you know what a dinosaur is? This site has answers to the exploration questions about dinosaurs and a common ancestors.

Figure out how to calculate an equivalent and how it relates to a mole. Rishi is a pediatric infectious disease physician and works at Khan Academy. [10:18]

In this claim-testing exercise, you're going to make determinations about whether or not claims about living versus nonliving things are true or false.

Contractility tells us how many myosin heads are working at the end of systole; a number that goes up or down with the level of sympathetic nerve stimulation. Rishi is a pediatric infectious disease physician and works at Khan Academy....