Molar Mass and its Applications - AP Chem Unit 1, Topic 1b

In this video, Mr. Krug shows students how molar mass can be applied to various situations, including calculating the percent by mass for the elements in a compound.

[@user-ot9wr4gn8k]

非常好视频，使我知识旋转，爱来自中国

[@JeremyKrug]

感谢您从中国远道而来的美言！

[@champlynyang5809]

Hey Mr Krug, I do have a problem is at 2:51 I did 33.9 divided by 101.96 x 6.02 x 10 to the 23 it gave me the answer of 5.52x10 to the -25. And I’d use the calculator on it but idk what’s wrong with the calculation.

[@adamahmadi3850]

Great Videos, thank you for sharing! any possibility to have the slides in PDF form (for purchase)? Thanks

[@JeremyKrug]

I'm actually working on a 'guided notes' series to go along with this video series. It's going to be available in conjunction with my Ultimate Review Packet (over at ultimatereviewpacket.com). I'm hoping to have it ready by mid-fall 2024.

[@HieiJung]

Hey Mr.Krug, for the problem at 5:45 ; when doing 1 divided by avogadros number times 18.02, I ended up getting 2.99 x 10^23 instead of 2.99 x 10^-23. Is this because when finding mass of molecules I automatically convert to a negative power or what?

[@JeremyKrug]

You might have typed the number into your calculator wrong. Be very careful when entering scientific notation on your calculator (especially if it's division) and check the manual on your calculator. to make sure you're doing it the right way.