A recently created iron-carbon compound is a component of Ironman’s armor. It was created by reacting 5.214 g Fe with excess C for form 6.055g of the iron-carbon compound. What is the empirical formula of this compound? When entering the formula place the elements in the following order: Fe, C. For subscripts, write the number after the element it corresponds to. For example, H2O should be written as H2O.

Q: The empirical formula of compound R is ____________________

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Q: What is the percentage of each element in this substance?

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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.