Question

If 23.6g of nitrogen are mixed with 17.3g of hydrogen, how many grams of ammonia may...

If 23.6g of nitrogen are mixed with 17.3g of hydrogen, how many grams of ammonia may form?

Homework Answers

Answer #1

Balanced chemical reaction:

N2 + 3H2 --------> 2NH3

Thus 1 mole of N2 reacts with 3 moles of H2 to give 2 moles of NH3.

First, we need to decide which is limiting reagent.

23.6 g of N2 = 23.6 g / 28.01 g/mol = 0.8426 moles

17.3 g of H2 = 17.3 g / 2.01 g/mol = 8.6 mol

Thus N2 is the limiting reagent and H2 is in excess.

So, 0.8426 moles of N2 will produce = 0.8426 * 2 = 1.6852 moles of NH3.

1.6852 moles of NH3 = 1.6852 mol *17.03 g/mol = 28.70 g of NH3

Thus 28.07 g of ammonia may form in the given reaction.

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