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74. The composition of a hydrate is given in the circle graph shown at the right.
What is the formula and name of this hydrate?
75. Challenge An 11.75-g sample of a common hydrate of cobalt(II) chloride
is heated. After heating, 0.0712 mol of anhydrous cobalt chloride remains. What
is the formula and the name of this hydrate?
Answers: 3
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