Therefore, 1 mole of gold weighs 196.9665 grams. So, in 2.8 grams of gold we would have: (2.8 gram)(1 mole/196.9665 gram) = 0.0142 mole. From Avogadro's number, we know that there are approximately 6.02 x 1023atoms/mole.
disregard the previous answer. You are not given anything in the way of grams, so you cannot assume the number of g from this. You would use Avogadro's Number, 6.02x10^23 in this case. I've attached a picture of how I found it. (Ignore my Statistics notes lol)
