1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: The Mole Concept

  1. Nov 20, 2015 #1
    1. The problem statement, all variables and given/known data
    What is the formula of a compound containing 3 moles of oxygen, one mole of aluminum and 3 moles of hydrogen in each mole of the compound?

    2. Relevant equations

    3. The attempt at a solution
    I don't really understand the question at all.
  2. jcsd
  3. Nov 20, 2015 #2

    Buzz Bloom

    User Avatar
    Gold Member

  4. Nov 20, 2015 #3


    User Avatar
    Homework Helper
    Gold Member

    I don't think there's any point in a Socratic dialogue to squeeze the answer out of you. You can write the formula AlO3H3, the Al , the O3 and the H3 can in principle be in any order you like; however it's more conventional to write it Al(OH)3 which is more indicative of structure, the way the atoms hang together. If you're somewhat prepared that should illuminate you immediately, if it doesn't there is nothing for it but to read yr textbook. o0)
  5. Nov 20, 2015 #4
    I thought that much more effort needed to go into that and I over complicated it for sure.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted