4. (4 pts) The first modern synthetic pigment, Prussian blue, is also known as ferric ferrocyanide with the chemical formula Fe.[Fe(CN)6]3. Calculate the molar mass of Prussian blue and the %Fe in the compound.

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".