Well done; you're explaining this at the right speed. Ten minutes is excellent.
One comment: when multiplying by 100, you might want to remind the students of the effect that has on the decimal point instead of immediately going to the calculator (perhaps you were short on time..). Also - and this is a bit more advanced - before any calculation it might be a good idea to discuss what to expect in terms of the order of magnitude of the answer, as in the calculation at 6:08.
oh my god, I love you!!! I have a chem. test tomorrow! wish me luck!!
HunterMathis15 6 days ago
you should be teaching at ucla.....
ccbhr 1 month ago
Only if Khan was my chemistry teacher...
vampirehunter12345 1 month ago
if u use the formula and substitute the values..it would be much easier to understand..
kutecurse6060 3 months ago
Is there a precipitation reaction example?
AerialRush 3 months ago
ILOVE KHAN ACADEMY
LCMS329 3 months ago
How is it that these videos teach me a 100 times more than my professor ever has in a 2 hour lecture?
You're awesome man, keep it up!
m0jo954 4 months ago 3
great job, i really need help in chemistry
Finals on monday!! :(
im dead!!
valschuck61 5 months ago
And verily, it is written I went to explore each field of new knowledge and Sal Khan was there shining his light!
TheRoadsidePicnic 6 months ago
Good example for 1st time users
VeroniqueEmbrace 6 months ago
great video!!! :D but the working is so complicated T.T
minhogasm 10 months ago
Comment removed
sayitisntsokthnxbai 1 year ago
tomorrow im going to wake up and forget all of this useful information :(
ezalcinoryahoocom 1 year ago
Well done; you're explaining this at the right speed. Ten minutes is excellent.
One comment: when multiplying by 100, you might want to remind the students of the effect that has on the decimal point instead of immediately going to the calculator (perhaps you were short on time..). Also - and this is a bit more advanced - before any calculation it might be a good idea to discuss what to expect in terms of the order of magnitude of the answer, as in the calculation at 6:08.
Cheers!
elbay2 1 year ago
thankkksss you rock :)
girlicious102 1 year ago
Chemistry Final Tomorrow - Thanks for the Help!! : )
LexSanz 1 year ago
waiting on organic chemistry ;) but I find this video pretty useful.
Keep it going :)
Ketuh 1 year ago