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QUESTION
2420 g sample of an unknown hydrate of cobalt(II) bromide is heated until all the water of hydration is removed. The CoBr 2 that remains has a mass...
A 8.2420 g sample of an unknown hydrate of cobalt(II) bromide is heated until all the water of hydration is removed. The CoBr2 that remains has a mass of 6.2000 g.
- How many moles of CoBr2 are in the sample? mol
- How many grams of water were lost in the dehydration? g
- How many moles of water were lost? (mol)
- What is the value of "n" in the formula CoBr2 · n H2O? (1, 2, 3, 4...).
