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arsen [322]
3 years ago
8

N2 + 3H2 → 2NH3 How many grams of hydrogen are necessary to react completely with 853.42g of nitrogen in the above reaction?

Chemistry
1 answer:
GarryVolchara [31]3 years ago
4 0

Answer: 182.87 grams of hydrogen are necessary to react completely with 853.42g of nitrogen.

Explanation:

The balanced chemical reaction is :

N_2+3H_2\rightarrow 2NH_3

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}  

\text{Number of moles of nitrogen}=\frac{853.42g}{28g/mol}=30.479moles

According to stoichiometry:

1 mole of N_2 react with = 3 moles of H_2

30.479 moles of N_2 will react with=\frac{3}{1}\times 30.479=91.437moles of H_2

 Mass of H_2 =moles\times {\text {Molar mass}}=91.437mol\times 2g/mol=182.87g

Thus 182.87 grams of hydrogen are necessary to react completely with 853.42g of nitrogen.

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