[Chemistry]Composition of elements in empirical formula

[chomool]

Homework Statement

0.2243 g of compound C give 0.3771 g of carbon dioxide, 0.0643 g of water and 0.2685 g of silver bromide. Determine the empirical formula of the compound.

Homework Equations

Why the empirical formula only takes C,H and Br into consideration, but singles out Ag?
Ans: C6H5Br

The Attempt at a Solution

 

[chemisttree]

It must be because they assume you know that silver nitrate is used to determine halogens. They also assume the you have no oxygen in the compound and that oxygen is used in excess as a reagent in the C and H determination.

 

[chomool]

It must be because they assume you know that silver nitrate is used to determine halogens. They also assume the you have no oxygen in the compound and that oxygen is used in excess as a reagent in the C and H determination.

I see your point, thanks chemisttree
Once more question,
Will Ag be included into empirical formula at times?

In other words,
is there any restrictions in composition elements of the empirical formula?

Thanks.

 

[Borek]

is there any restrictions in composition elements of the empirical formula?

Generally speaking - no.