# Simple empirical formula question

Stevecgz
Question:
The reaction of 1.36 g of manganese with excess cholrine produced 4.00 g of chloride compound of manganese. Determine the empirical formula of the product.

If I calculate this with cholrine as $$Cl_{2}$$ I get $$Mn_{3}Cl_{4}$$.

But if I calculate it with cholrine as $$Cl$$ I get $$Mn_{3}Cl$$.

Which way is correct?

Steve