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April 18, 2014

Homework Help: Chemistry

Posted by Kyle on Thursday, January 26, 2012 at 7:33pm.

I did the work, but I need help checking it...

A compound contains 83.24% by mass carbon. Calculate the molar mass of the compound if it contains 5 moles of carbon per mole of compound.

This was my process:

I took 100g of compound and found that there are 83.24 g C in that much compound.

Then:

(83.24 g C) * (1 mol C / 12.011 g C) * (1 mol compound / 5 mol C) * (X g compound / 1 mol compound)

= 1.386 g compound

Is this correct..?

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