Nitrogen react with hydrogen to produce ammonia. How many grams Hydrogen is needed, if 10.00 g...

Question

Question

Nitrogen react with hydrogen to produce ammonia. How many grams Hydrogen is needed, if 10.00 g Nitrogen is used?

Answer 1

Answer #1

Reaction of nitrogen with hydrogen to form ammonia is as shown

Molar mass of N₂=2xmolar mass of N=2x14 g/mol

=28 g/mol

Number of moles of N₂ used up=Given mass/molar mass

=10 g/28 g/mol=(10/28) mol

As per the balanced chemical equation given above

1 mol N₂ needs 3 mol H₂

So (10/28) mol N₂ needs 3x(10/28) mol= 1.07 mol H₂

Molar mass of H₂=2xmolar mass of H=2x1 g/mol=2 g/mol

Mass of hydrogen needed=number of moles x molar mass

=1.07 mol x 2 g/mol=2.14 g

So 2.14 g H₂ is needed

Answer 2

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