Question

If you determined that the volume of a silver bar is 100. mL, how many atoms of silver would be in the bar? The density of silver is 10.5 g/mL.

Answer 1

D = m/v
m = Dv = 10.5 * 100 = 1050 grams
1050/Ag's amu = 1050/47 = around 22.5
22.5 moles is your answer

Answer 2

I think it might be 6.321E26 because if you multiply 100ml by 10.5 g and 6.02E23, thats what you get