Chemical Engineering

Question

How many moles contains 6 gram of carbon?

-6 moles -12moles -1/2 moles -3 moles

Mole=Weight in gm/Mol. Wt

Answer 1

How many moles of WHAT contains 6 grams of carbon? Are you asking how many moles of carbon contains 6 grams of carbon, or how many moles methane, ethane, propane, glucose, sucrose, etc. contain 6 grams of carbon? Let us assume you are asking "how many moles of carbon contains 6 grams of carbon?"

atomic mass of carbon (C) = 12.011 g/mole

6 g C x 1 mole C/12.011 g = 0.4995 moles = 0.5 moles of C contains 6 grams of C

Answer 2

You will multiple the amount of carbon by the the atomic mass of carbon - 12.01 grams/mole. For this problem we will round it to 12 grams/mole.

6 grams of carbon ( 1 mole/ 12 grams of carbon) = 1/2 moles.

The answer is 1/2 moles.