Homework Help! discussion
Subjects
>
Science
date
newest »
newest »
message 1:
by
(S)
(new)
Mar 25, 2012 08:41AM
This is for genrel science questions, if needed this topic can be divide down more.
reply
|
flag
Hey! I need some chem help! I've done this before... just in japanese not english..So i have samples and mass, but i need to calculate the number of moles. Anyone??
So the problem says, i have 23 grams of NaCl dissolved in 280 ml of H20. What's the moler mass?? I calculated the number of moles in 23 grams, but i couldn't get the 280 ml of H2O. the problem's worded differntly then it would have been in japan -.-
It's due the 12th so i have some tiem too.


