Homework Help: chemistry

Posted by Allison on Monday, October 10, 2011 at 6:30pm.

A laboratory has a 2.0-mol sample of pure selenium and a 2.0-mol sample of pure chromium. How many more grams of selenium than chromium does this represent?

chemistry - DrBob222, Monday, October 10, 2011 at 7:12pm
grams = moles x molar mass

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