Unformatted text preview: • 7H 2 O has 7 "waters of hydration". Each water of hydration is included in the formula weight of the solid. 2. Read the Experiment and answer the following questions; Show all calculations : a. What is the complete chemical name, the complete chemical formula and the formula weight of the precipitate that you will form in this experiment? ( Hint: Read the paragraph, including the reaction shown, after the solution to Example 1 on page 34 of the laboratory manual, and be sure to include the waters of hydration ) Name: ______________________________________ Formula ______________________________________ Formula Weight _________________________________ b. What is the percentage by mass of phosphorus in the precipitate in part a, above? ( See Sample and Practice Exercises 3.6 on pages 88-89 of your lecture text for examples .)...
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- Spring '10
- Chemistry, TA, Formula Weight