Question

Choose the total number of each item requested below. 4C 6 H 12 O 6 A.Carbon atoms B.Hydrogen atoms C.Oxygen atoms Molecules
A.Carbon atoms ___
B.Hydrogen atoms ___
C.Oxygen atoms ___
D.Molecules ___

Answer 1

Explanation:

A molecule is defined as the substance that contains same or different elements which are chemically combined to each other in a fixed ratio by mass.

For example, $C_{6}H_{12}O_{6}$ is a molecule.

And, the stoichiometric coefficient placed before a molecule represents how many total molecules of that substance are actually present.

For example, in $4C_{6}H_{12}O_{6}$, the stoichimetric coefficient is 4 and it depicts that there are 4 molecules of $C_{6}H_{12}O_{6}$ are present.

Therefore, total number of each item present in $4C_{6}H_{12}O_{6}$ are as follows.

• Carbon atoms : $4 \times 6$ = 24

• Hydrogen atoms : $4 \times 12$ = 48

• Oxygen atoms : $4 \times 6$ = 24

• Molecules : 4

Thus, we can conclude that in 4 molecules of $C_{6}H_{12}O_{6}$ there are 24 carbon atoms, 48 hydrogen atoms and 24 oxygen atoms.