Question

Approximately how many moles of chlorine makeup 1.79 x 10^23 atoms of chlorine

Answer 1

Approximately 0.297 moles of chlorine are present in 1.79 x 10^23 atoms of chlorine, calculated by dividing the number of atoms by Avogadro's number.

Step-by-step explanation:

The student is asking how many moles of chlorine are present in 1.79 x 1023 atoms of chlorine. To answer this, we use Avogadro's number, which is 6.022 x 1023 atoms/mol, to determine the number of moles from the given number of atoms.

Step-by-Step Solution

To find the number of moles of chlorine, divide the number of atoms by Avogadro's number.

Number of moles of chlorine = (1.79 x 1023 atoms) / (6.022 x 1023 atoms/mol).

Perform the division to get the approximate number of moles.

Therefore, by doing the calculations we find that the number of moles of chlorine in 1.79 x 1023 atoms of chlorine is approximately 0.297 moles.

Answer 2

Given the atoms of Chlorine, Cl =
`1.79 *10^(23) atoms Cl`

1 mol of any substance has Avagadro number of formual units (atoms, molecules, ions)

`6.022 * 10^(23) Cl atoms` are present per each mole chlorine.

The conversion factor used to convert atoms to moles of chlorine is,

`(1 mol Cl)/(6.022*10^(23) Cl atoms )`

Calculating the moles of Cl that make up
`1.79 *10^(23) atoms Cl`:

`1.79 *10^(23) atoms Cl` *
`(1 mol Cl)/(6.022*10^(23) Cl atoms )`=0.279 mol Chlorine

Therefore, 0.297 mol Cl make up
`1.79 *10^(23) atoms Cl`