Question

How many carbon atoms are in 2.12 mol of propane (C3H8)? How many hydrogen atoms are in 2.12 mol of propane?

Answer 1

 3 carbons and 8 hydrogen = 11 atoms in propane.
per molecule.
2.12 mol C3H8 | 6.02 x 1023 molecules of C3H8 | 11 atoms.
| 1 mol C3.

Answer 2

The number of carbon atoms in 2.12 moles of propane is 38.304 $\rm \times\;10^2^3$ atoms. The number of hydrogen atoms in 2.12 moles of propane is 102.144 $\rm \times\;10^2^3$ atoms.

Propane has been a hydrocarbon of 3 carbon chain. The atoms are attached to each other by the covalent bonds. The subscript of the element in the molecular formula gives an insight into the number of atoms.

In a molecule of Propane, there have been 3 carbon atoms and 8 hydrogen atoms.

The number of molecules in a mole of the compound has been equal to the Avogadro number. Thus the number of molecules in 2.12 mol of the compound can be given by:

1 mole = 6.023 $\rm \times\;10^2^3$ molecules

2.12 moles =  6.023 $\rm \times\;10^2^3$  $\rm \times$ 2.12 molecules

2.12 moles = 12.768 $\rm \times\;10^2^3$ molecules.

• The number of carbon atoms can be given by:

1 molecule of Propane = 3 carbon atoms

12.768 $\rm \times\;10^2^3$ molecules of Propane = 38.304 $\rm \times\;10^2^3$ atoms.

The number of carbon atoms in 2.12 moles of propane is 38.304 $\rm \times\;10^2^3$ atoms.

• The number of hydrogen atoms can be given by:

1 molecule of Propane = 8 hydrogen atoms

12.768 $\rm \times\;10^2^3$ molecules of Propane = 102.144 $\rm \times\;10^2^3$ atoms.

The number of hydrogen atoms in 2.12 moles of propane is 102.144 $\rm \times\;10^2^3$ atoms.

For more information about the number of atoms, refer to the link:

https://brainly.com/question/13206790