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Nitrogen gas and hydrogen gas undergo synthesis to form ammonia gas. If 1.40 g of nitrogen are used in the reaction, how many grams of hydrogen will be needed?

Respuesta :

joseaaronlara

Answer:

The answer to your question is 0.3 g of H₂

Explanation:

Data

N₂ (g) = 1.4 g

H₂ (g) = ?

Balanced Reaction

                            N₂(g)  + 3H₂ (g)   ⇒ 2NH₃ (g)

Process

1.- Calculate the atomic mass of nitrogen and hydrogen.

N₂  = 14 x 2 = 28 g

H₂ = 1 x 6 = 6 g

2.- Use proportions and cross multiplication to solve it

                             28 g of N₂  ------------------- 6 g of H₂

                              1.4 g of N₂ -------------------- x

                             x = (1.4 x 6) / 28

                            x = 0.3 g of Hydrogen

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