Chemistry Basics: Osmolarity, Osmolality and Tonicity

Osmolarity, Osmolality and Tonicity Video
#chemistry #osmolarity #osmolality

It's so confusing - or is it really? Let's start with the mole and nail down molarity vs. molality. Then, we dive into the world of osmotic pressure and compare osmolarity and osmolality. Finally, we'll go through tonicity and explore hypertonic, hypotonic and isotonic solutions - with clinical examples of each.

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Overview: 0:80
What is a mole / Avogadro's Number: 0:28
Solvents, solutes and solutions: 1:40
Comparing molarity and molality: 2:18
Intro: comparing osmolarity and osmolality: 3:40
Review of osmosis: 3:43
Osmotic pressure: 4:07
The osmole: 4:25
Comparison of moles to osmoles: glucose, NaCl, K2SO4: 4:33
Comparing osmolarity and osmolality: 5:36
Tonicity: 7:30
Hypertonic, hypotonic, isotonic solutions: 7:50
Direction of osmosis, cellular response: 8:15
Clinical applications: 9:04
Thank you for watching: 9:32

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