The mass of substance which consists the equal number of particles as 12 grams of Carbon-12 is said to be mole.
For example:
The balanced chemical equation for production of water from hydrogen and oxygen is:

That means 2 moles of
reacts with 1 mole of
to give 2 moles of
.
The given formula is
.
Hence, 4 represents the number of moles in
formula that is 4 moles of
.
The number of atoms of sodium,
in
is:

The number of atoms of sulfur,
in
is:

The number of atoms of oxygen in,
in
is:

Explanation:
1=2 atoms
2=4-n where n is the number of bonds to that carbon
3=10
4=2
Answer:
5.22*1022 molecules of glucose (C6H12O6) is equal to 15.08 grams
Explanation:
Number of molecule of glucose in one mole 
Now mass of one mole of glucose
grams
Number of moles in
molecules of glucose 
Number of moles in
molecules of glucose = 
Number of moles in
molecules of glucose =
=
moles
Weight of
moles
grams
Answer:
C
Explanation:
Only this choice is applicable and correct.
The inter-molecular forces of attraction between the molecules must have been broken (overcome) before the molecules can gain an increase in the kinetic energies between them.