Ca(OH)2(s)+H2S(g)--->CaS(s)+2H2O(l) In the reaction above, calcium hydroxide and hydrogen sulfide react to form calcium sulfide and water.  If you combine 11 g of hydrogen sulfide with 15 g of calcium hydroxide: 1) Which reactant is limiting?      calcium hydroxide or hydrogen sufude 2) Calculate the number of moles of calcium sulfide produced if the percent yield is 100%.       [_______]  mol CaS

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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.