Homework Help: intro chem

Posted by casey on Sunday, July 15, 2012 at 10:52pm.

What is the mass of carbon dioxide produced if 1.95 g sodium carbonate is used?

intro chem - Xokki, Sunday, July 15, 2012 at 10:59pm
Na2CO3 --> NaO2 + CO2
1.95g of sodium carbonate

n=m/M

n(sodium carbonate)= 1.95/(2x22.99+12.01+3x16)=0.018 mol

Mole ratio is: Na2CO3:CO2 = 1:1
= 0.018:0.018

m(Carbon dioxide) = 0.018 x (12.01+2x16)

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