Stoichiometry

What is the mole ratio of hydrogen to oxygen in the balanced chemical equation: 2H₂ + O₂ → 2H₂O?

How many moles of water are produced when 3 moles of oxygen gas react with excess hydrogen gas according to the equation: 2H₂ + O₂ → 2H₂O?

Calculate the mass of CO₂ produced when 44 g of C₂H₆ (ethane) is completely combusted. (Molar mass: C₂H₆ = 30 g/mol, CO₂ = 44 g/mol) Equation: 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

In the reaction N₂ + 3H₂ → 2NH₃, how many grams of NH₃ can be formed from 14 g of N₂ and excess H₂? (Molar masses: N₂ = 28 g/mol, NH₃ = 17 g/mol)

If 5 g of sodium (Na) reacts with excess chlorine gas to form NaCl, what is the mass of NaCl produced? (Molar masses: Na = 23 g/mol, Cl = 35.5 g/mol) Equation: 2Na + Cl₂ → 2NaCl

In a reaction, 10 g of calcium carbonate (CaCO₃) decomposes to produce calcium oxide (CaO) and carbon dioxide (CO₂). Calculate the mass of CO₂ released. (Molar masses: CaCO₃ = 100 g/mol, CaO = 56 g/mol, CO₂ = 44 g/mol) Equation: CaCO₃ → CaO + CO₂

Given the reaction: 4Al + 3O₂ → 2Al₂O₃, how many grams of Al₂O₃ are formed when 54 g of Al reacts with excess oxygen? (Molar masses: Al = 27 g/mol, Al₂O₃ = 102 g/mol)

In a reaction, 10 g of hydrogen gas reacts with 80 g of oxygen gas. Which is the limiting reagent in the reaction 2H₂ + O₂ → 2H₂O?

Calculate the volume of CO₂ gas (at STP) produced when 5 g of glucose (C₆H₁₂O₆) is completely combusted. Equation: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O (Molar mass glucose = 180 g/mol)

In the reaction: 2KMnO₄ + 10FeSO₄ + 8H₂SO₄ → K₂SO₄ + 2MnSO₄ + 5Fe₂(SO₄)₃ + 8H₂O, how many moles of FeSO₄ are required to completely react with 0.5 moles of KMnO₄?