Phosphorus reacts with oxygen to form diphosphorus pentoxide, P₂O5. 4 P(s) + 50₂(g) 2P₂05 (s) How many grams of P₂O5 are formed when 3.59 g of phosphorus reacts with excess oxygen? Show the unit analysis used for the calculation by placing the correct components into the unit-factor slots. 32 3.59 g P x 141.94 g P₂O5 4 mol P 5 mol O₂ X Answer Bank 32.00 g 0₂ 1 mol O₂ 1 mol P₂0, 2 mol P₂O5 1 mol P 30.97 g P = g P₂05

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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.