How many moles are in 13grams of C6H6. should this question be broken down into its imperical formula (CH)6 and calculate the number of moles of CH and multiply by 6 or calculate the gram molecular wt of C6H6 and divide it into 13 grams?

Question

How many moles are in 13grams of C6H6.  should this question be broken down into its imperical formula (CH)6 and calculate the number of moles of CH and multiply by 6 or calculate the gram molecular wt of C6H6 and divide it into 13 grams?

DrBob222 · Answer

moles = grams/molar mass If you break it down and do units of CH, then multiply by 6 you just do more work to get the same answer you would get if you used the second approach you note. 13/78.11 = ??