Chemistry SAT II plesae help!

sonalii
Fri, 01 Jun 2007 20:10:22 +0000

density is Mass/Volume. if if it wants to know the density of a pure substance at STP (Carbon, Oxygen… elements basically) you would do the molecular weight/22.4

i dont know the answer to ur second question… sorry

for o-chem (which yes, is unbelievably confusing) there are certain properties associated with each. according to my book (kaplan)

alkanes- only carbon-carbon single bonds

alkenes - atleast one carbon-carbon double bond

alkynes - atleast one carbon-carbon triple bond.

a good way to remember this is to remember that they go in alphabetical order… a, e, and y.