Gra 3/2017 11:59 PM 0 933/10012/1/2017 11:59 AM Print Calculator Periodic Table

Question

Gra 3/2017 11:59 PM 0 933/10012/1/2017 11:59 AM Print Calculator Periodic Table on 15 of 22 Mapd A Sapling Learning Coal is the most common energy source. Burning coal for energy produces large quantities of atmospheric pollution that contain gases such as carbon dioxide (CO2) and sulfur oxides (SO.) Suppose a large power plant buns 730000 metric tons of coal (CueHgeO,NS) per year s of carbon are prodtoer plant per year? Number ti year Assuming all of the carbon burned in coal is converted to CO2, how many grams of COz are produced by his power plant per year? g/ year about us careers privacy polcy terms of use contact ushelp Book Pro

Explanation / Answer

a)

tons of carbon in plant per year:

730000 tons of coal

from the molar mass:

total C = 135 per mol

MW of Coal = C*135 + 96*H + 9*O+1*N+ 1*S

MW of Coal = 12*135 + 96*1 + 9*16 +1*14 + 1*32 = 1906

C fraction = 135*12 /(1906) = 0.84994

then...

Mass of C present = 0.84994 * 730000 = 620456.2 of C tons per year

b)

tonmol of C = ton of C / MW of C = 620456.2 /12 = 51704.68 tonmol

1 tonmol of C = 1 tonmol of CO2

tonmol of CO2 = 51704.68

MW of CO2 = 44 tons/tonmol

tons of CO2 = 51704.68*44 = 2275005.92 ton

mass in grams--> 2275005.92ton * 10^6 g /ton = 2.2750 *10^12 grams of CO2 per year

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