Percent Composition of Carbon in Dimethylsulfoxide (C2H6SO4)

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Discussion Overview

The discussion revolves around calculating the percentage of carbon in dimethylsulfoxide (C2H6SO4). Participants explore the correct formula and the resulting calculations, focusing on the chemistry involved in determining the percent composition.

Discussion Character

  • Homework-related
  • Mathematical reasoning
  • Debate/contested

Main Points Raised

  • One participant presents a calculation for the percentage of carbon based on the formula C2H6SO4, arriving at 19%.
  • Another participant questions the correctness of the formula used for dimethylsulfoxide.
  • A third participant confirms the formula is indeed (CH3)2SO, suggesting that the initial mass calculations may be based on an incorrect formula.
  • It is noted that using the correct formula leads to a different calculation resulting in 30.7% for the percentage of carbon.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the correct formula for dimethylsulfoxide, leading to differing calculations of the percentage of carbon. The discussion remains unresolved regarding the correct approach and formula.

Contextual Notes

There is uncertainty regarding the correct chemical formula for dimethylsulfoxide, which affects the calculations presented. Participants rely on different interpretations of the formula and its implications for mass calculations.

priscilla89
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Homework Statement



What is the percentage of carbon in dimethylsulfoxide, C2 H6 SO4?

Homework Equations



mass of C / total mass x 100 = percentage of carbon

The Attempt at a Solution



The total mass = 126

total mass of C = 24

Wouldn't it be 24 / 126 x 100 = 19 %

But somehow I got this wrong, it's 30.7 %

Any help will be appreciated, thanks a lot
 
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priscilla89 said:

Homework Statement



What is the percentage of carbon in dimethylsulfoxide, C2 H6 SO4?

Homework Equations



mass of C / total mass x 100 = percentage of carbon

The Attempt at a Solution



The total mass = 126

total mass of C = 24

Wouldn't it be 24 / 126 x 100 = 19 %

But somehow I got this wrong, it's 30.7 %

Any help will be appreciated, thanks a lot

Are you sure of your formula for dimethyl sulfoxide?
 
sjb-2812 said:
Are you sure of your formula for dimethyl sulfoxide?

Yes, but I think somehow it's the formula that's wrong.
 

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