Asked by mysterychicken

I realllyy need help with this:

39. Find the formula mass for AI2S3. Show your work. (The 2 and 3 are small)

Thanks
-MC
Answered by bobpursley
You look up the atomic masses of Al, and S.

formula mass=2*atomicmassAl + 3*atomicmassS

I will be happy to critique your work.

http://www.webelements.com/index.html

Answered by mysterychicken
...I got 150.158077...

-MC
Answered by bobpursley
correct.
Answered by mysterychicken
:D

Thanks!!!!
-MC
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