A hydrocarbon mixture consists of 85.71% carbon and 14.29% hydrogen by mass. What is the empirical formula of the hydrocarbon? Please express your answer in the form (for example) C2H5 without subscripting formats ("ONES" (1) are not required). Empirical formula: If the molecular weight of the hydrocarbon is approximately 56 g/mol, what is the molecular formula? Please express your answer in the form (for example) C2H5 without subscripting formats ("ONES" (1) are not required). Molecular formula:

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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".