# Alloy-component weight based on desired molecule

I'm a gold smith and I want to start experimenting with non-standard metal-alloys. Now high school is a long time ago for me so while I think I've got this right, I'm just not as sure as I should be when working with precious metals costing 40 dollar a gram. So could anyone confirm that what I'm doing is right:

I have two metals Metal X, with an atomic-weight of 20 Metal Y, with an atomic-weight of 3

If I want to create an intermetallic alloy of $\ce{XY2}$, where one atom of X is combined with two atoms of Y and I'd want 10 grams of that alloy. I would alloy (20*10)/26=7.692g of metal X and (6*10)/26=2.308g of metal Y, correct?

• I think this is perfectly fine here, great question! Nov 27 '12 at 21:09