CHEM

A particular coal contains 2.55% sulfur by mass. When the coal is burned, it produces SO2 emissions which combine with rainwater to produce sulfuric acid.

Determine how much sulfuric acid (in metric tons) is produced by the combustion of 1.1 metric ton of this coal. (A metric ton is 1000kg .)

A: ___ metric ton H2SO4

How do you set this up?


For Further Reading

chem - bobpursley, Monday, October 1, 2007 at 12:47pm
Determine the percent of S in sulfuric acid.

Then:

1.1ton/.0255 * 100/percentSinacid =

chem - DD, Monday, October 1, 2007 at 1:33pm
I tried this & the % of S in sulfuric acid = 32.7%.
However, when I worked 1.1ton/0.0255*11/0.327 I got:13191.82107. The question says to give to 2sig figs. I entered 1.3*10^4, but said that it was incorrect.

Any other suggestions...or did I just enter the numbers incorrectly?

chem - DD, Monday, October 1, 2007 at 1:36pm
tried this & the % of S in sulfuric acid = 32.7%.
However, when I worked 1.1ton/0.0255*100/0.327 I got:13191.82107. The question says to give to 2sig figs. I entered 1.3*10^4, but said that it was incorrect.

Any other suggestions...or did I just enter the numbers incorrectly?

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  3. 👁 2,079
  1. Try 1.1 metric tons x 0.0255 x (1 mol H2SO4/1 mol S) =
    1.1 x 0.0255 x (98.079/32.066) = 0.08580 which rounds to 0.086 to two sig figures. Let me know how this works.

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  2. I tried 8.6*10^-2 & well...it didn't work & now I have exceeded all attempts. Thank you for your help, however. I am not just sure what the question was really looking for. I will attempt to ask my prof if I get the chance. Perhaps it has something to do with the kg's? Or...perhaps it just didn't like the form that I wrote it in. I just checked what my answers were & it listed it as me having entered what I did & then under "evaluated" it just wrote 8.60...therefore incorrect. I should have perhaps just put as you stated.

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  3. Thanks for letting me know. I'm sure 0.086 to two s.f. is correct.

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  4. Mastering Cheistry? Im stumped on the same question: A particular coal contains 2.55% sulfur by mass. When the coal is burned, it produces SO2 emissions which combine with rainwater to produce sulfuric acid. Use the formula of sulfuric acid to calculate the mass percent of S in sulfuric acid. __ % S??

    I would appreciate some help! Thanks!

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  5. I tried your answer exactly as you put it, and it was still wrong. The correct answer that m.c. gave me is 7.8*10^-2

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