Question

The empirical formula of a group of compounds is CHCl. The active ingredient in permethrin, a powerful insecticide, is a member of this group. The molar mass of the compound is 290.8 g/mol. How many atoms of carbon does a molecule of the compound contain

Answer 1

6 atoms of carbon.

Step-by-step explanation:

Hello,

In this case, we can easily compute how many times the molar mass of the empirical formula is in the molecular formula by firstly computing it:

`M=12.01g/mol*1+1.01g/mol*1+35.45g/mol*2\\\\M=47.58g/mol`

Then, we divide them:

`(290.8g/mol)/(47.58g/mol)= 6.111`

Which is approximately 6, for that reason, we are going to find six atoms of carbon in the molecule.

Regards.