How many atoms are in 6.45 mol of silicon?

Answer 1

6.45 moles X 6.02 X 10 to the 23 power will be right (use 3 significant figures in your answer)

Answer 2

There are 3.89 x 10^24 atoms in 6.45 mol of silicon. This is calculated by multiplying Avogadro's number (6.022 x 10^23) by the number of moles of silicon.