3.149 Lysine, an essential amino acid in the human body,contains C, H, O, and N. In one experiment, thecomplete combustion of 2.175 g of lysine gave 3.94 gCO2 and 1.89 g H2O. In a separate experiment, 1.873 gof lysine gave 0.436 g NH3. (a) Calculate the empiricalformula of lysine. (b) The approximate molar mass oflysine is 150 g. What is the molecular formula of thecompound?

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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".