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November 23, 2014

Homework Help: Chemistry

Posted by Dan on Sunday, October 17, 2010 at 5:51pm.

Determine the mass of zinc sulphide,ZnS which is produced when 6.2 g of zinc and 4.5 g of sulphur are reacted.

This question is really confusing me, and I'm not sure where to start. I think I have to calculate the moles of each given reactant first in which case I have:
nZn = 0.095 mol
nS = 0.140 mol

But from here I'm confused. Do I determine the ratio? If so it's 1:1 now what??? I'm confused. Pls.help me.

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