Question
Asked Feb 7, 2020
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Charcoal is primarily carbon. What mass of CO2 is produced if you burn enough carbon (in the form of charcoal) to produce 4.90 kJ × 10² kJ of heat? The balanced chemical equation is as follows:
C(s) + O2 (g) → CO2 (g),
ΔΗ
-393.5 kJ
Express the mass in grams to three significant figures.
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Charcoal is primarily carbon. What mass of CO2 is produced if you burn enough carbon (in the form of charcoal) to produce 4.90 kJ × 10² kJ of heat? The balanced chemical equation is as follows: C(s) + O2 (g) → CO2 (g), ΔΗ -393.5 kJ Express the mass in grams to three significant figures. ο ΑΣφ т 3

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Step 1

According to the given reaction, 393.5 kJ of heat is produced on the formation of one mole of carbon dioxide (CO2). So, 393.5 kJ of heat is equivalent to 1 mole of CO2. The amount of CO2 to be generated (n) to produce 4.90×102 kJ or 490 kJ of heat is calculated as follows:

Chemistry homework question answer, step 1, image 1

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