a. 1 ounce
b. 2 to 3 pounds
c. 10 pounds
d. 8 ounces
2007-01-18 04:14:48 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
A pound of good quality anthracite coal contains about 95% carbon. The molar ratio of carbon to CO2 is 1:1 with complete combustion.
So, 1 pound= 454 gram. 95% of that is 431 grams of carbon
431 g * (mole Carbon/ 12 g) * (1 mole CO2 /1 mole Carbon)= 35.9 moles CO2
35.9 moles CO2 * (44 g / mole CO2) = 1579.6 grams CO2
1579 grams * (pound/ 454 grams) = about 3.5 pounds
So, b. is the closest answer, and probably correct accounting for poorer quality coal and less than 100% combustion.
2007-01-18 04:27:42 · answer #1 · answered by Jerry P 6 · 0⤊ 0⤋
Well this problem to my knowledge would need a lot of information and switching from grams to pounds or ounces whatever works but your gonna need a Balanced Equation and then use the ratios to figure out how much of a product your gonna get out of 1pound of coal so whatever coal is reacting with to form carbon dioxide so you figure this is a single replacement type of equation so hopefully this was some help to your problem and neccesities to solve it..
2007-01-18 12:22:38 · answer #2 · answered by blazncaczn 3 · 0⤊ 0⤋
B. About 3 pounds.
2007-01-18 14:33:10 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Coal is 90+ percent carbon by weight
The molecular weight of carbon is 12
The molecular weight of carbon dioxide is 44
Do the math.
2007-01-18 12:24:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
the answer is c
e = mc^2, matter cannot be destroyed. all of other ones have less matter than a pound so they cannot be correct. and 2 to 3 pounds is an unspecific answer and cannot be correct.
just use ur head ppl, come on
2007-01-18 12:23:29 · answer #5 · answered by conventional 4 · 0⤊ 0⤋
its got to be B no doubt about it. Definitely B, go for B!!
2007-01-18 12:46:37 · answer #6 · answered by wally 3 · 0⤊ 0⤋