A sample of an oxide of lead (oxide A) weighing 4.7840 g is heated to drive off oxygen to form oxide B weighing 4.5704g.Further heating at high temperature removes more oxygen to give oxide C weighing 4.4639g and containing 92.8% of lead. What is the empirical formula of oxide A,B, and C?

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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.