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Nitrogen and hydrogen make ammonia. If you begin with 36.2g of nitrogen and excess hydrogen, how many grams of ammonia can you make?

Nitrogen and hydrogen make ammonia If you begin with 362g of nitrogen and excess hydrogen how many grams of ammonia can you make class=

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Answer:

Mass =  44.2 g  

Explanation:

Given data:

Mass of nitrogen reacted = 36.2 g

Mass of ammonia formed =?

Solution:

Chemical equation:

N₂ + 3H₂    →    2NH₃

Number of moles of nitrogen:

Number of moles = mass/molar mass

Number of moles = 36.2 g / 28 g/mol

Number of moles = 1.3 mol

Now we will compare the moles of nitrogen and ammonia from balanced chemical equation to determine how many moles of ammonia re formed.

                        N₂         :         NH₃

                        1            :          2

                       1.3          :         2/1×1.3 = 2.6 mol

Mass of ammonia:

Mass = number of moles × molar mass

Mass = 2.6 mol × 17 g/mol

Mass =  44.2 g  

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