This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
36 g H2O are produced. Steps: 1. Write the balanced chemical equation: 2H₂(g) + O₂(g) → 2H₂O(l) 2. Calculate the molar mass of H₂: Molar mass of H₂ = 2 × 1.008 g/mol = 2.016 g/mol 3. Convert the mass of H₂ to moles of H₂: Moles of H₂ = Mass / Molar mass = 4.0 g / 2.016 g/mol ≈ 1.984 mol H₂ 4. Use the mole ratio from the balanced equation to find moles of H₂O: From the equation, 2 moles of H₂ produce 2 moles of H₂O. Moles of H₂O = Moles of H₂ = 1.984 mol H₂O 5. Calculate the molar mass of H₂O: Molar mass of H₂O = (2 × 1.008 g/mol) + (1 × 15.999 g/mol) = 2.016 + 15.999 = 18.015 g/mol 6. Convert moles of H₂O to grams of H₂O: Mass of H₂O = Moles × Molar mass = 1.984 mol × 18.015 g/mol ≈ 35.74 g H₂O Rounding to two significant figures (due to 4.0 g H₂), the mass of H₂O produced is 36 g.