Answer:
≈
1.2
⋅
10
24
atoms of hydrogen
Explanation:
Water has a molar mass of
18.01528
g/mol
≈
18
g/mol
.
So, in
18
g
of water, there will be
18
g
18
g
/mol
=
1
mol
Since water has a chemical formula of
H
2
O
, there will be
2
moles of hydrogen in every mole of water.
In one mole of water, there will exist approximately
6.02
⋅
10
23
water molecules.
So, there will be a total of
6.02
⋅
10
23
⋅
2
≈
1.2
⋅
10
24
hydrogen atoms.
