Question

how many atoms?
calculate the number of atoms of each element...
4(nh_{4})_{2}s
n=
h=
s=
2fe_{2}(so_{3})_{3}
example
fe = 4
s = 6
o = 18
type

Explanation:

Step1: Calculate the number of N atoms

In \((NH_4)_2S\), there are 2 N atoms in one \((NH_4)_2S\) unit. And there are 4 such units (due to the coefficient 4). So the number of N atoms is \(4\times2 = 8\).

Step2: Calculate the number of H atoms

In \((NH_4)_2S\), there are \(4\times2=8\) H atoms in one \((NH_4)_2S\) unit. With 4 units, the number of H atoms is \(4\times8=32\).

Step3: Calculate the number of S atoms

In \((NH_4)_2S\), there is 1 S atom in one \((NH_4)_2S\) unit. With 4 units, the number of S atoms is \(4\times1 = 4\).

Answer:

N = 8, H = 32, S = 4