Amounts of tin may be alloyed with copper to produce bronzes of varying composition and properties. 8.9394 g of a particular bronze, compounded of only Cu and Sn, can be quantitatively converted into a 11.2311-g mixture of the Oxides CuO and SnO2. (Use the atomic masses: Cu 63.546, Sn 118.71, O 15.9994.) What was the percentage (by mass) of tin in the alloy?

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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.