Question

In the chemical formula 3NH4, how many total atoms of hydrogen (H) are there?

Answer 1

12 because it shows that there is 4 and then you times the 4 by the coefficient of 3

Answer 2

Answer: The number of hydrogen atoms in a given chemical formula are
`7.2264* 10^(24)`

Step-by-step explanation:

We are given a chemical compound having chemical formula of
`NH_3`

In 1 mole of ammonia, 1 mole of nitrogen atom and 4 moles of hydrogen atoms are there.

According to mole concept:

1 mole of a compound contains
`6.022* 10^(23)` number of atoms.

So, 3 moles of ammonia will contain =
`3* 4* 6.022* 10^(23)=7.2264* 10^(24)` number of Hydrogen atoms and
`3* 1* 6.022* 10^(23)=1.8066* 10^(24)` number of nitrogen atoms.

Hence, the number of hydrogen atoms in a given chemical formula are
`7.2264* 10^(24)`