Homework Help: chemistry

Posted by curt on Saturday, December 1, 2012 at 12:24pm.

How many atoms of tin are necessary to
react completely with 7.42 x 10(24th)g
of HF.
Sn(s) + 2HF(g) = SnF2(S) + H2 (g)

chemistry - Steve, Saturday, December 1, 2012 at 1:51pm
I think you must mean 7.42 x 10^24 molecules of HF, since I doubt that there are that many grams available.

since each atom of Sn reacts with 2 molecules of HF, it would require half as many Sn as HF.

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