Directions: Determine the mole ratio of the following reactants and products. For items 1 and 2: 4NH3 + 302 6H2O + 2N2 1. What is the mole ratio of NH3 to H2O? 2. What is the mole ratio of O2 to N2? → SiF, + 2H2O For items 3 and 4: SiO2 + 4HF 3. What is the mole ratio of HF to SiF4? 4. What is the mole ratio of SIO2 to SiF.? For items 5 and 6: 3NO2 + H2O → 5. What is the mole ratio of 3NO2 to 2HNO3? 2HNO3 + NO 6. What is the mole ratio of H2O to NO?

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Q: 59 100- 80- M(102) 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 m/z Relative Abundance

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Q: Molarity

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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".