What is density?

Chemistry Lecture #2: What is density?
Go to www.richardlouie.com for a pdf transcript of this lecture.

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My left ear is smarter now. Thanks!

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thank you for your effort! you are a great teacher Sir Richard!

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This video definitely helped a lot. Thank you!

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Sir i appreciate a lot for your work

[@victoriadickson5991]

Great one

[@HappyIYoshi]

Very helpful video! Helped illustrate the relationship between mass, volume, and density perfectly. I was a bit confused before, but now it makes perfect sense. :)

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great demonstrating the concept

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Very good sir

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Thank goodness for this! I have a density quiz and a layers of the earth quiz and I was so confused! Thank you so much!!

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Natalie Cray _190 I hav a quiz tomorrow on density volume and mass

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I came here for learning physics and ended up learning both Chemistry and physics.😂

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Great lecture

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[@richardlouiechemistrylectures]

Thanks for the feedback. I hope that your students are doing well.

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It was really helpful I completely understood...

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did your teacher send this to you?

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Awesome and thank u so much for giving more info about density.

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Great effort...but why did you stop uploading video...you should continue for the students....

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great demonstrations!

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Explained it vary well thank u!!

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Thx

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[@richardlouiechemistrylectures]

Glad it helped!

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Thank u!! It is helpful

[@josejasso3298]

Your explanation of why the aluminon foil box does not sink is wrong.
1. the box is filled with air,
2. If you have the same temperature and pressure density does not change.
3. the aluminum box flotes for the Archimedes principle, that is why boots float.

[@richardlouiechemistrylectures]

You might have a point. At about 6:13 I point out that the box is filled with air. Since air is less dense than water, it floats in the water. I probably should have emphasized that the box is mostly air, and that the reason the box floats is because air is less dense than water.

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Thanks alot

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great sir

[@dhavalpandya978]

rubbing alcohol density is 0.78 not 0.87...

[@richardlouiechemistrylectures]

Thanks for the correction!

[@dhavalpandya978]

@@richardlouiechemistrylectures
Sir, I am very inspire of your knowledge that try to simplify chemistry more than our college profesor.

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W

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Mass is cool

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you should push it harder

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r u a teacher

[@richardlouiechemistrylectures]

Yes, I am a high school science teacher. Thanks for watching! www.richardlouie.com/about.html

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just kidding that was a good video

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it was a really good video

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you cant hear this guy

[@richardlouiechemistrylectures]

I used a wireless microphone that unfortunately recorded the sound in mono, so the sound only goes to one speaker. If one of your speakers doesn't work, you may not hear the sound. Sorry about that. Try listening with ear phones (you'll only hear sound in one ear phone).