Friday
March 27, 2015

Homework Help: chemistry

Posted by Jan on Tuesday, January 19, 2010 at 6:44pm.

I'm having a little trouble doing a worksheet.

1.25 moles of KBr contains how many Br atoms?

How do I find the number of atoms for one of them?

Also, I'm not sure how to solve:

Calculate the number of atoms in CO2.

Thanks.

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