So basically the question is that there is 2.3 grams of a compound , it contains 1.2g of carbon , 0.3g of hydrogen and 0.8 of oxygen, I found the number of moles in each and ended up with 0.1 , 0.3 , 0.65 , now I am confused where i go next to find the formula. Is it CH3O7
Confromation for Empirical Formula Question (not asking you to do it for me) Watch
- Thread Starter
- 07-02-2017 20:48
- 07-02-2017 22:05
You've basically got it - just check your calculation for the number of moles of oxygen (it's a bit high - its 0.8/16).
If you calculate this, then I think you've got the idea - divide all the values by the smallest number.
Just a tip - when you work out the formula at the end, if the value is 6.5, you would have to double all of your numbers to get whole numbers as you can't disregard 0.5 of the atoms (also, in this case the there should be more H atoms that C and O - again, check O molar calculation!)