Question

how many atoms are in 7.09gm of cl​

Answer 1

Answer:

Explanation:

Molar mass of chlorine is 35.453 amu

Given mass of Cl=7g

Here only 1atom of chlorine is given in 1mole

No. Of atoms =No. Of moles*NA*No. Of atoms in 1mole of the compound

No. Of moles =Given mass/Molar mass

=7/35

=1/5

=0.2moles

No. Of atoms=0.2*6*10²³*1

=1.2*10²³

Thank you