the number of moles in 17 grams of ammonia
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How many molecules are present in 17g of ammonia?
Ammonia, formed of 3 hydrogen atoms and a nitrogen atom, has an atomic weight of 17g/mol. (Actually 17.031g/mol if we’re being picky.)
This means that 17g of ammonia is one mole of ammonia.
The number of molecules in
a single mole of any compound is given by Avoadro’s constant, which is 6.023x10^23.
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1 mole of NH4 = 6.022 x 10^23 atoms
1 molecule of NH4 has 4 atoms
So for 1 mole = 4 x 6.022 x 10^23
= 24.088 x 10^24 atoms
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