Answer to Question #210972 in General Chemistry for Jenny

Question

Hydrazine, N₂H₄ is used in rocket fuels. The thermochemical equation for the combustion of hydrazine is: N₂H₄ + O₂ → N₂ + 2H₂O + 622.4 kJ

a)     How many grams of H₂O will be produced if 1.5 of N₂H₄ is used?

Answer 1

Mole ratio of H₂O to N₂H₄ = 2:1

Therefore, 1.5 moles of N₂H₄ = 3 moles of H₂O

Molar Mass of H₂O = 18.01528

= 18.01528 ×3

= 54.04584 g