Hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with hydrochloric acid: Mg(s) + 2HCl(aq)→→MgCl₂ (aq) + H₂(g) ▾ Part A When 30.0 g of Mg reacts, what volume, in liters, of H₂ gas is produced at 26 °C and 780 mmHg?

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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.