### Mistake in the 2009 Midterm Solutions?

Posted:

**Mon Oct 31, 2016 2:33 pm**For the 2009 Midterm for the "yellow book", is there an error in how the solution is solved? For example, the solution states that to find the molar ratio of the C, H, and O atoms, the book says to "divide each amount of moles by 0.2939". However, when dividing the moles of H20 and CO2, which the yellow book solves for us, the molar ratio does not come out to 1.4:1.2:1. But when the moles of each atom (moles of H, moles of C, which are not calculated in the yellow book) in the formula are divided by "0.2939", the ratio does come out.

I know this might be an unintentional error, so sorry if I'm sounding a bit annoying here. :(

I know this might be an unintentional error, so sorry if I'm sounding a bit annoying here. :(