Homework Help: Chem

Posted by Amber on Thursday, December 15, 2011 at 10:52am.

calculate the mass in grams of carbon needed to produce 160 grams of CO2 burning. C + O2 -> CO2

Chem - Steve, Thursday, December 15, 2011 at 11:26am
mol wt of CO₂ = 12 + 32 = 44

160g = 3.64 moles

3.64 moles of C = 3.64 * 12g = 43.63g

Use more precise weights if needed.
Chem - Amber, Thursday, December 15, 2011 at 12:52pm
Where is the 12g coming from?

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