What is the formula weight (in g/mol) of copper(II) nitrate trihydrate, Cu(NO3)2 3H₂O? Give your answer to 6 significant figures, and be sure to use at least 4 significant figures for each atomic weight. 241.60 g/mol What is the percentage of copper (by mass) in copper(II) nitrate trihydrate, Cu(NO3)2 3H₂O? Give your answer to 5 significant figures. %Cu by mass

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.