A 0.55 g sample of a certain metal reacted with acid to liberate 375.0 mL of hydrogen gas when collected over water at 20.0 degree Celsius and 790.0 torr (corrected room pressure). The vapor pressure of water is 17.535 mm Hg at this temp. Assuming there is no need to account for pressure differences due to water levels, and using the reaction below, what is the molar mass and identity of the metal? 2X + 6HCl --> 3H2 + 2XCl3

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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.