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In the following problems answer is given in bracket, I just want the steps how to...

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Chemistry

In the following problems answer is given in bracket, Ijust want the steps how to get them:

(a). Calculate the % of each DRY product whencoal is burned stoichiometrically in air. The mass analysis of thecoal is: 80% C; 10% H2; 5% S; and 5%ash.(76.7%N, 22.5%CO2; 0.8%SO2)

(b). Find the air fuel ratio for stoichiometric combustion ofButane by volume. Calculate the percentage of carbon dioxidepresent in the DRY flue gas if 30% excess air isused. (30.95/1; 10.6%)

Make sure you cover both parts as Chegg Question allowsat max 4 sub-parts. I want all the steps to get the correctanswer.

Answer & Explanation Solved by verified expert
4.1 Ratings (657 Votes)
Basis 100 gm of coal It contains 80C means 80 gm of C 10H2 ie 10gm of H2 5S 5 gm of Sulfur Atomic weights C 12 H1 S 32 Moles C 8012667 H2 10 and S532015625 Combustion reactions are CO2CO2 moles of O2 to be used 667 moles H205O2H2O moles    See Answer
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