Right, Right, forgot about that...Thanks a lot
Can you look at another question?
A certain element, X, reacts with sulfur to form the compound X2S5 If 0.274 g of the element form 0.568 g of the compound, what is the atomic molar mass of the element?
A 31.0 g mol
B 58.9 g mol
C 65.4 g mol
D 74.7 g mol
E 121.8 g mol
I don't know what I did wrong here but the correct answer is B but I got D.
let x= molar mass of X
moles of element X = 2(moles of compound X2S5)
0.274/x = 2(0.568/(2x+5(32.065)))