About 30,4 grams of N2O3 gas;   I. Contains 0,8 moles of N atoms.. II. Contains 1,2 pieces of O atoms. III. 8,9 liters in UNC.   Which of the statements are corrrect?      A) Only II  B) II and III  C) I and III  D) Only I  E) I, II and III

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A: Number of moles = mass/molar mass  So, mass = number of moles × molar mass

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A: N2   +  3 Br2   --->  2 NBr3   given 2.22 × 10² moles of N2

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A: Given, The percentage of Carbon = 27.29 % The percentage of Oxygen = 72.71 %

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".