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Tutorial 2 FORMULAS, PERCENTAGE COMPOSITION, AND …

Tutorial 2 FORMULAS, PERCENTAGE COMPOSITION, AND …

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2–, ions. The lowest common multiple of 3 and 2 is 6, so we will need six positive and six negative charges: two Al3+ and three SO 4 2ions, and the formula for aluminum sulfate is Al 2(SO 4) 3. Then, in a formula unit of Al 2(SO 4) 3 there are two aluminum ions and three sulfate ions; or two aluminum, three sulfur, and twelve oxygen atoms.

  Formula, Tutorials, Compositions, Percentages, Ions, Tutorial 2 formulas, Percentage composition

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