Chemistry Tutorial: Atomic & Molecular Mass

[@cptmoorestar]

LOVE THESE VIDEOS!!! Honestly why am I only finding this stuff fascinating now..... these videos would have been invaulable during school! Still bettter late than never. Also never really understood how to see the world through a periodic elemental language.... awesome!!

[@AtomicSchool]

Great comment. Thank you, John.

[@cptmoorestar]

@@AtomicSchool No no thank you for these videos! Im hooked.... learning about the makeup of the universe........ 20+ years later! lol

[@AtomicSchool]

@@cptmoorestar :)

[@heyygore]

Thanks sir, this channel is one of the most underrated ...

[@AtomicSchool]

Now that's a great comment. Thanks.

[@heyygore]

@@AtomicSchool I can't even imagine this kinds of quality and practical teaching in India , keep it up professor...

[@AtomicSchool]

@@heyygore I visited a Tamil Nadu school a few years ago, and loved it.

[@heyygore]

Great , I'm in final year of mechanical engineering and neither of my teaching staff has any knowledge of fundamental concepts, their teaching style is so mediaeval as if they mugged up the topic before class.

[@AtomicSchool]

@@heyygore Good luck with your career

[@neilkaushik2402]

Thanks for the vid. At school when the teacher was talking I was like, I don't speak your language, but now I get it.

[@AtomicSchool]

This is great feedback, Neil.

[@robertklotz9319]

Me too, now I get the lesson. It's easy with your explanations. I watched your other videos also. Same, they're great. But w/o school and previous knowledge, thou botched, I doubt that I would have understood so well today. THANKS to you I want to know more. I got hooked. GREAT!!!

[@worldtourin4k235]

Sir your explanation is great

[@Kirellzed]

Atomic mass is also measured in the form of neutrons+protons,why did they do all this measuring or was the neutron+proton method not discovered yet? You channel is amazing btw!✨

[@AtomicSchool]

Thanks Kirellzed. Neutrons + protons is called Mass Number rather than Atomic Mass. There is a playlist on this at concept kzbin.info/aero/PLYbDrmR0pxgpljmn59ZQ0a_T3_DWbw9O1

[@Kirellzed]

@@AtomicSchool Thank you very much

[@AtomicSchool]

@@Kirellzed Good luck!

[@michael-wz2tg]

thanks your videos are very helpful

[@halfbloodgeek301]

Sir , When Are You Going to post a new video

[@himajamoon]

Super explanation sir

[@AtomicSchool]

Thank you.

[@artubtu]

Would you please explain in more detail how you got the 1 to 16 mass ratio between H and O? And how do I find your reply. I've asked several questions and can't find any replies. Maybe you could make a video on how to do that. Thsnks. Artu Btu

[@AtomicSchool]

The ratio of the hydrogen to oxygen masses on a macroscopic scale is 1:8. If water molecule had a formula HO (one hydrogen atom and one oxygen atom) then the ration of the masses of the individual atoms would also be 1:8. That's what Dalton thought. However, when we discovered that water is H2O, and that there are 2 hydrogen atoms bonded to one oxygen atom, it meant that there twice as many H atoms. In other words, the H atoms must be half the weight than originally thought. The new ratio must be 1:16.

[@robertklotz9319]

@@AtomicSchool now I got this too. Thanks.

[@mugenifrancis3333]

yo the best teacher

[@AtomicSchool]

Thank you Mugeni!

[@elizabethrosch970]

Were can I buy those sticky atoms? I would like to buy them for my 3 Grand daughter. I Googled them and I cannot find them. I live in the USA and my daughter lives in Bali. Please let me know. Thank you! PS: You have the very best channel on KZbin.

[@AtomicSchool]

Thank you Elizabeth :) For Sticky Atoms email me at [e-mail] if you are still interested.

[@Bamboo4U2]

Hi. Thanks for the video. I'm a bit confused though. At the very end, you stated that the atomic mass of carbon dioxide (co2) is 46, with two oxygens at 16 each (32) but you stated carbon's mass was 14 but the periodic table says carbon's atomic mass is 12. Can you clear that up for me? Thanks!

[@AtomicSchool]

Thanks Jake, my error. I will change carbon's Atomic Mass to 12 ... don't know what I was thinking. CO2 has a molecular mass of 44.

[@colinayogiestyandread.6137]

SAME THOUGHTS. HEHEHE BUT NICE. THIS JUST SHOWS THAT WERE THAT ATTENTIVE TO THIS VID. KUDDOS!! 🖤🖤

[@cptmoorestar]

I am so glad you cleared this up. was pausing the video doing the head sums..... and was like 46... nope 44 lol..

[@joylu6334]

At 5:22 it says that carbon's atomic mass is 14, and it should be 12.

[@AtomicSchool]

Quite right. Good spotting, Hastings.

[@ladiaemad6273]

good simplest explain thanks

[@AtomicSchool]

Thanks for the feedback, Ladia.

[@ApisBull]

0:26 She has 1 blue eye and 1 brown eye

[@selenarose3680]

I also noticed that...

[@halfbloodgeek301]

Ian Sir, The Channel's New Name Is Good

[@AtomicSchool]

Thanks Sarath. I agree.

[@richard50ification]

Thanks for another piece of your work. Having watched it something drew my attention. I mean when we look at, say, atom of gold and one of lead: Lead had been placed right next to gold on its right. That suggests that it has only one proton more than gold and its position in the periodic table is fully justified, where as density of lead is significantly lower than that of gold. Is density irrelevant to the place where elements are placed in periodic table?

[@Kirellzed]

Yes it is irrelevant to the table,when mendeléev proposed the periodic table it was based on atomic mass ,now its no more a function of atomic mass.Now it is based on atomic number.

[@sageelliott3558]

At the end i thought it was 46 not 44

[@Lucky-xw6hj]

He noted Carbon's mass as 14, which is incorrect. It is actually 12. Which he did note correctly in the equation.

[@AtomicSchool]

C=12 and O=16. So 2x16 + 12 = 44

[@ksumar]

@@AtomicSchool Good but I think 🤔 you need to amend the video or super impose a correction when you show C=14. It should be C=12.

[@AtomicSchool]

@@ksumar Good spotting, Karim. One day I will :)

[@ksumar]

@@AtomicSchool Welcome but an excellent video. You have a great voice 👍... A true narrator 🙂 I'm teaching my daughter chemistry at 13 and these are good starter videos! 👌 I fervently hope you will do many more in the series.

[@nitishdevalaraju6596]

C=12 5:04

[@AtomicSchool]

Good spotting Nitish!