1. The problem statement, all variables and given/known data If you were to count the number of carbon atoms at the rate of four each second, how long would it take you to count 6.0 grams of Carbon atoms? 2. Relevant equations ---- 3. The attempt at a solution 6.0 g Carbon x [1 mole carbon atom / (6.02 x 10^23 grams )] = 9.97x10^-24 moles carbon atoms then my friend told me.... per one second, three moles. therefore, 9.97x10^-24 moles carbon x 4 seconds x 1 / 3 moles carbon = 1.33 x 10^-23 s I'm having an exam tomorrow and I have a GUT feeling that this'll be asked -__- can someone please help?