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Post by Miguel Suarez on April 6, 2012

Nice video really good work professor, wish all professor would explain like you

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Post by mateusz marciniak on May 5, 2012

great video but i was wondering, isn't Acetate C2H3O2 -1?

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Post by Abdihakim Mohamed on May 7, 2012

Where where you professor for the past two years of my life, I wish I came across this website way earlier.

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Post by Yaron Zaret on June 10, 2012

awesome teacher

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Post by Riley Argue on June 14, 2012

I sat in first year chem in high school for a complete year, but my teacher could not explain this material to save her life.

But somehow you explained it so simply. Thank you!

1 answer

Last reply by: Professor Hovasapian
Tue Jan 29, 2013 3:37 PM

Post by Antoni Szeglowski on January 27 at 12:12:51 PM

Best teacher on Educator!

1 answer

Last reply by: Professor Hovasapian
Tue Jan 29, 2013 11:49 PM

Post by Marian Iskandar on January 29 at 10:21:12 PM

I really enjoy these videos, but for the past week, nothing will load! Very disappointing!

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Post by rajendra irani on February 18 at 08:57:17 PM

Dear Sir,
Great Teaching and I am really enjoying AP Chemistry.

Kind Regards
Raj

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Post by rajendra irani on February 18 at 09:05:31 PM

HO -Hydrogen peroxide. why not it is named as hydrogen monoxide?

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Post by Professor Hovasapian on February 18 at 11:54:28 PM

Hi Raj,

I hope you're doing well. Thank you for your kind words, and I'm happy to hear you are enjoying AP Chem.

Regarding the OH, I'm wondering if you meant the OH- polyatomic Ion. If so, then, because it is an Ion that has a charge of -1, it is named as a single entity, and does not fall under the systematic procedures for naming compounds -- we simply rfer to it s Hydroxide.

Hydrogen Peroxide is actually H2O2. Now, O2- (an Oxygen atom with a 2- charge) binds to to H+ ions to create this molecule.

If the molecule were HO, without a charge, then you would be correct: it would be called Hydrogen Monoxide. In fact, water, which is the common name, and which you know as H2O -- it's systematic name is exactly Dihydrogen Monoxide.

If I have misinterpreted you question, Raj, please let me know, and I will remedy the issue.

Best wishes for a happy and productive year.

Raffi

1 answer

Last reply by: Professor Hovasapian
Thu Feb 28, 2013 4:39 PM

Post by Youssef Sadki on February 28 at 01:18:12 PM

I wpould like to thank you so much ...you make really like how easy to drink water...

Naming Compounds

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

Advanced Placement Chemistry