5:27 pm on Jan. 5, 2009 | Joined: April 2007 | Days Active: 346 Join to learn more about morgan82United States | Posts: 1,218 | Points: 4,687
Amazingness99
Omnipotent One Patron
Calculate the molar mass of Al2(PO4)3 first.
Then, divide 250 by the number you got and you should get the moles of that substance.
5:28 pm on Jan. 5, 2009 | Joined: Oct. 2007 | Days Active: 400 Join to learn more about Amazingness99Connecticut, United States | StraightFemale | Posts: 8,614 | Points: 19,300
Heart92
When Your Mind Captures You Patron
Do you have more questions? I can help you out with the others.
------- Starting a new oblivious. I'm nervous. knees shaking. My own detention. inside, I fight. the bermuda triangle comes to life. Trapped. Caged. Deranged. Mind carries you into another world, Somewhere beyond the eye is a worl pool.
5:29 pm on Jan. 5, 2009 | Joined: Nov. 2006 | Days Active: 649 Join to learn more about Heart92California, United States | Bi-curiousFemale | Posts: 20,360 | Points: 32,148
Just Waiting Here
Dairy Product Addict Patron Support Leader
You need to calculate the molar mass. You do this by using the weights that you get off of a periodic table.
You have Al2(PO4)3, which means you have 2 aluminum, 3 phosphorus, and 12 oxygen.
Add up all the weights together to get your molar mass of this compound.
Since you have 250 grams, and molar mass is in grams per mole, you need to divide 250 by the number you just calculated. This will give you the number of moles.
565 users online 
211582 members 
You have 1 new message.
Patron
