When 0.046 moles of aluminum sulfate are dissolved in enough water to make 638 milliliters of solution
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When 0.046 moles of aluminum sulfate are dissolved in enough water to make 638 milliliters of solution

[From: ] [author: ] [Date: 11-09-17] [Hit: ]
138 mol / 0.638 L = 0.......
what is the molarity of sulfate ions?
Answer in units of M

-
1 mol Al2(SO4)3 releases 3 mol SO42- in solution.

0.046 mol Al2(SO4)3 x (3 mol SO42- / 1 mol Al2(SO4)3) = 0.138 mol SO42-

M = mol / L = 0.138 mol / 0.638 L = 0.216 M SO42-
1
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