According to minearc.com, “oxygen candles are used as a backup source of breathable air in an emergency. In addition, they supply an on-demand source of oxygen, utilized in airplanes, space stations, and other applications such as safe havens and refuge chambers.” The chemical reaction that produces oxygen is shown below. 2 NaClO3(s) → 2 NaCl(s) + 3 O2(g) To support 4 people for 21 hours, about 2.600E3 liters of oxygen at STP is needed, how many grams of NaClO3 is needed per person per hour

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A: Mole ratio of hydrogen and oxygen is 2:1 in the reaction Reaction is  2H2 + O2 -----> 2H2O

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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".