1.33*10^ 23 molecules of carbon dioxide to moles

0.22moles of carbon dioxide

Explanation:

Given parameters:

Number of molecules of carbon dioxide  = 1.33 x 10²³molecules

Unknown:

Number of moles   = ?

Solution:

To solve this problem, we use the relationship below:

   1 mole of a substance contains 6.02 x 10²³moleccules;

So;

    1.33 x 10²³molecules will contain   = 0.22moles of carbon dioxide

the answer for sodium is 0.186

the answer for rubidium is 0.251