Homework Help: Chemistry PLEASE HELP!

Posted by Mike on Monday, October 11, 2010 at 4:09pm.

When 0.042 moles of aluminum sulfate are
dissolved in enough water to make 763
milliliters of solution, what is the molarity of sulfate ions?
Answer in units of M.

Chemistry PLEASE HELP! - bobpursley, Monday, October 11, 2010 at 4:13pm
I wonder what is going on here? this is incredibly easy

Moles sulfate ions in Al2(SO4)3
Molarity= molessulfateions/liters of solution
= 3*.042/.763 moles/liter

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