Question

If a sample of ammonia contains 16.0 g of h, how many grams of n does it contain?

Answer 1

If a sample of ammonia contains 16.0 g of H, and 140 grams of N  it will contain.

The reaction of hydrogen and nitrogen to form ammonia.

N2 + 3H2 →2NH3

    Given                               mole ratio

16 grams of H2        x          1 mole of N2/3 mole of H2

 = 5 moles of N2

so,

1 mole of N2 contains 28 grams

then,

5 mole of N2 will contain = 5 x 28 = 140 grams

What are some domestic applications for ammonia?

• Fill a suitable bottle halfway with ammonium hydroxide (such as an empty soda or dishwasher bottle).

• Add warm water to the remainder, then shake vigorously.

• This ammonia and water mixture can be applied directly on the surface or used to remove dried-on stains.

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