1.) A mixture of 15.0 grams of Aluminum and 20.0 grams of Sulfur is made to react to form Aluminum sulfide according to the expression: Al, + St» →Al,S6) (A). Which one is the limiting reactant? (B). How many grams of Al,S, can be formed? (C). How many grams of the other reactant ae left over?

Q: None

A: Step l1: Step 2: Step 3: Step 4:

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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.