Hydrogen gas, H₂, can be generated by the decomposition of aluminum hydride, AlH3, according to the following reaction. 2 AIH3(s)-> 2 Al(s) + 3 H₂(g) How many grams of AIH3 would be required to generate enough H₂ gas to fill a 50.0 L tank at 712 torr and 25.0°C?

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Q: How does evaporation occu Why does ice float? What is a solution?

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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.