What Are the Identities of M and M2S3 When M Reacts with Sulfur to Form M2S3?

[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, that's all i can think of really.



3. Haven't been able to get one.

 

[Borek]

0.09 moles of S, how many moles of metal?

What is the metal molar mass?

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