YasminZ07 YasminZ07

11-10-2022
Mathematics

Answered

The mass of a hydrogen atom is
1.67 × 10^-24grams.
The mass of a nitrogen atom is
2.32 × 10^-23 grams.
A molecule of ammonia contains 3 atoms
of hydrogen and 1 atom of nitrogen.
a) Calculate the mass of one molecule of
ammonia
Give your answer in standard form.
b) Calculate the number of molecules in 1
gram of ammonia.
Give your answer in standard form to 3
significant figures.

Answer :

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