Chlorine gas (Cl2) can be prepared on a small scale according to the following balanced equation: MnO2(s) + 4 HCl(aq) -----> MnCl2(aq) + 2 H2O(l) + Cl2(g) If you perform this reaction with 10.0 grams of HCl and excess MnO2, what volume of Cl2, measured at 740 mm Hg and collected over water 27.0oC, can be obtained? (The vapor pressure of water at 27oC = 26.7 mm Hg)

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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.