2Mg +02-2MgO The number of grams of MgO produced when 7.90 grams of O2 reacts completely is QUESTION 7 How many moles of hydrogen atoms are there in 0.83 mole of C3H8?

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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.