weighed 3.893 g of Nickel(II) Chloride Hexahydrate, dissolved it in water and reacted it with an excess of concentrated ammonia solution. She isolated 2.468 g of the desired product. Nickel(II) Chloride Hexahydrate   +   6 NH3   →    hexaaminenickel (II) chloride   +   6 H2O (Note: The molar mass of Nickel(II) Chloride Hexahydrate is 237.7 g/mol and the molar mass of the

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