Nicotine is a compound that contains C, H, and N. If a 2.50g sample of nicotine is burned in oxygen, 6.78g of CO2, 1.94g H2O and 0.432 g of N2 are the products of combustion. What is the % composition of nicotine?

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Q: What is the chemical shift in ppm of a carbon that resonates at 1325 Hz on a 250 MHz instrument

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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".