Empirical formula from masses

1. Oct 6, 2009

triplepie

1. An unknown metam M reacts with sulfur to form a compound with the formula M2S3. If 3.12g of M reacts with 2.88g of S, what re the names of M and M2S3?

2. 2.88g S ( 1 mol of S/ 32.07 g S) = 0.09 mol of S, thats all i can think of really.

3. Haven't been able to get one.

2. Oct 7, 2009

Staff: Mentor

0.09 moles of S, how many moles of metal?

What is the metal molar mass?

--
methods