Nitrogen trifluoride, NF3, is used in the production of flat panel displays. It is also a potent greenhouse gas. The average concentration of NF3 in the atmosphere increased from 0.02 parts per trillion (ppt) in 1978 to 0.454 ppt in 2008. What was the concentration of NF3 in 2008 in mg per kg of air?

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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".