Hydrazine,N₂H₄,once Used as a Rocket Propellant,reacts with Oxygen in the Following

question 68

Multiple Choice

Hydrazine,N₂H₄,once used as a rocket propellant,reacts with oxygen in the following equation. N₂H₄(g) + O₂(g) → N₂(g) + 2 H₂O(g)
The reaction,at 50% yield,produces 4.0 moles of N₂.What was the mass of hydrazine used? Assume that O₂ is in excess.

• A)32.0 g
• B)260 g
• C)64 g
• D)0.063 g

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