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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Gear:
Computer: iMac 27" late 2015
Mic: Apogee HypeMic
Software: Keynote and ScreenFlow
Chemistry consultant: FabioChem

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[BJ-ehol]

You have such a relaxing voice that even chemistry seems less scary 😂 thanks for these videos!

[jposton]

As a 45 year old mom trying to figure out chemistry to even try to help my student, this did help a lot! Thank you

[drandrewtan]

This is the best video on this topic. The added bonus is the examples of different solutions with different tonicity. Bravo!

[SohanLal-swtd]

Finally understood these confusing terms after 28 yrs of life. Thanks for simplifying these terms.

[stephanieusrey]

Oh my gosh, thank you. Thank you for your humor, first... good grief most teaching on this is SO DRY and BORING but you have made it, well, kind of fun somehow. And thank you for the memory trick, I'll take it, no matter how small. 😀

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[teresamortensen]

Thank you so much. You simplified this topic brilliantly.

[krishnavenialagarsamy]

I understood the concept of osmolarity and osmolality really well. Thank you :)

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[wypy]

You dont know much you help me i have come so far but i never really understand osmolarity and osmolality i just go with it and never really answer anything related with this and it always makes me less confidant about my education ! Thank you so much for making me get what it really is oh and your voice is very addicting i really enjoy listening....plz make more videos

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[hala]

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I'm confused by the overall concept of this channel but I'm still entertained. :D