Answer:
157.25 g NH3
Explanation:
Hydrazine is N2H4. Ammonia is NH3. So the idea is to take two NH3 and combine them to form N2H4 while removing the two excess H atoms.
Hydrogen peroxide is an oxidizing agent quite capable of donating an oxygen atom to a reaction.
2 NH3 + H2O2 → N2H4 + 2 H2O
Molecular mass of N2H4 is 2x14 + 4x1 = 32
Molecular mass of NH3 is 17 and you need 2 so 34 g per reaction.
148 g N2H4 / 32g/mol = 4.625 mol
4.625 x 34 = 157.25 g NH3
