So I have a Chem test on Thursday for placement into Chem next year, and I need to figure out how to find a mol, an easy way, because my last teacher gave me a way that takes like 10 minutes and I don't have that kind of time on this test, anybody know one?

Do you mean converting grams to moles?

Get a shovel and start digging...






But really I'm assuming you mean what Wooderson said, or just unit analysis in general?

http://wiki.answers.com/Q/How_do_you_convert_from_grams_to_moles_and_also_fr om_moles_to_grams

http://www.ktf-split.hr/periodni/en/