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Please help ASAP! What mass of hydrogen is needed to produce 10 moles of ammonia (NH3)?
N2 +
3H2 → 2NH3
30 moles
30 grams
15 grams
15 moles

Respuesta :

Neetoo

Answer:

Mass = 30 g

Explanation:

Given data:

Mass of hydrogen needed = ?

Number of moles of ammonia produced = 10 mol

Solution:

Chemical equation:

N₂ + 3H₂        →      2NH₃

Now we will compare the moles of ammonia and hydrogen.

                  NH₃            :                H₂

                    2               :                3

                   10               :               3/2×10 = 15 mol

Mass of hydrogen needed:

Mass = number of moles × molar mass

Mass = 15 mol × 2 g/mol

Mass = 30 g

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