3. Consider the nickel salt: (NH4 )2Ni(SO4 )2 ·y H2O (Ammonium Nickel Sulfate Hydrate), where y is the number of coordinated waters. (a) Assuming that the product is anhydrous (y = 0), what is the theoretical yield of ammonium nickel sulfate from 1.500 g of Ni (s)? (b) The actual yield of product was 9.640 g - obviously containing coordinated water. The product was then heated strongly until all the water had been driven off. The resulting anhydrous salt had mass 7.000 g. What is the value of y? (c) Based on the mass of the anhydrous product (7.000 g), what is the % yield of the reaction?

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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.