What is the experimental molar mass (that is, calculated from the data given and not taken from the periodic table) of magnesium if 0.0208 grams of magnesium generates 21.25 mL of hydrogen at 19.1 °C with a hydrogen partial pressure of 735.4 torr? Note that the partial pressure of water vapor has already been subtracted from the total pressure.

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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.