How many moles of carbon in 130g of C2H6
14.4 moles of Carbon, if using 3 sig figs. If there are only two sig figs the answer is 14.
- grams divided by the molar mass of C2H6, which is 18.0584g/mol = 7.22 moles of C2H6.
Since there are 2 carbon atoms per C2H6, we must multiply the number of moles of C2H6 by 2 to get the number of moles of Carbon which is 14.4 or 14 if using two sig figs.