3.Consider the following balanced equation:show all work 2H2O --> 2H2 + O2 15.7g of H2O decomposes. What volume of Hydrogen gas would be formed if it were collected at 789 mmHg and 30.0 degrees C? Numerical Answer: Unit: Label:

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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.