How many moles of Pb are in 4.71 × 1021 Pb atoms?
A) 0.00782
B) 2.84 × 10^45
C) 207.2
D) 6.022 × 10^23
E) none of the above
Answer: A
How many moles of Pb are in 4.71 × 1021 Pb atoms?
A) 0.00782
B) 2.84 × 10^45
C) 207.2
D) 6.022 × 10^23
E) none of the above