Chemistry: Calculate the number of nitrogen atoms in 240 g of ammonium nitrate?

I think its Pentane Explanation:...

Calculate the number of nitrogen atoms in 240 g - id240696538, Kelseyyleigh2611

mrgoggles12

12.03.2022

Answer : The number of nitrogen atoms are, $3.61\times 10^{24}$

Explanation : Given,

Mass of NH_4NO_3 = 240 g

Molar mass of NH_4NO_3 = 80 g/mole

First we have to calculate the moles of NH_4NO_3

$\text{Moles of }NH_4NO_3=\frac{\text{Mass of }NH_4NO_3}{\text{Molar mass of }NH_4NO_3}=\frac{240g}{80g/mole}=3mole$

As we know that NH_4NO_3 contains 2 number of nitrogen atoms, 4 number of hydrogen atoms and 3 number of oxygen atoms.

Now we have to calculate the number of atoms of nitrogen.

As, 1 mole of NH_4NO_3 contains $2\times 6.022\times 10^{23}$ number of nitrogen atoms

As, 3 mole of NH_4NO_3 contains $3\times 2\times 6.022\times 10^{23}=3.61\times 10^{24}$ number of nitrogen atoms

Therefore, the number of nitrogen atoms are, $3.61\times 10^{24}$

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