Hydrazine (n2h4) is used as rocket fuels. it reacts with oxygen to form nitrogen and water. write the balanced equation for this reaction. n2h4 + o2 → n2 + 2h2o how many liters of n2 at stp form when 100g of n2h4 reaction with 100g of o2? how many grams of the excess reagent remain after the reaction?

Question

Chemistry

Natasha Warren

24 February, 14:54

Hydrazine (n2h4) is used as rocket fuels. it reacts with oxygen to form nitrogen and water. write the balanced equation for this reaction. n2h4 + o2 → n2 + 2h2o how many liters of n2 at stp form when 100g of n2h4 reaction with 100g of o2? how many grams of the excess reagent remain after the reaction?

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Giovanna Stephens · Answer 1

Chemical reaction: N₂H₄ + O₂ → N₂ + 2H₂O.

m (N₂H₄) = 100 g.

n (N₂H₄) = m (N₂H₄) : M (N₂H₄).

n (N₂H₄) = 100 g : 32 g/mol.

n (N₂H₄) = 3,125 mol.

m (O₂) = 100 g.

n (O₂) = 100 g : 32 g/mol.

n (O₂) = 3,125 mol.

From chemical reaction n (O₂) = n (N₂).

V (N₂) = n (N₂) · Vm.

V (N₂) = 3,125 mol · 22,4 L/mol.

V (N₂) = 70 L.

There is not excess reagent.