4-3 Relate mole count to individual count

4-3-1. How many atoms of carbon are in a 2.50 mol sample of carbon?
A. 1.51x10²⁴
B. 30.0
C. 4.15x10^-22




4-3-2. How many moles of O₂ molecules are in a sample containing 3.0x10²² O₂ molecules?
A. 2.0 mol
B. 1.06x10^-21 mol
C. 0.50 mol