how many moles of molecules are there in 38g of fluorine f2?
Molar mass of F2 is 38 g. How many atoms are present in 0.147 mole of F2? One molecule of F2 contains 2 atoms of fluorine. So, 0.147 moles will contain 0.147 X 2 X 6.023 X 1023 = 1.76 X 1023 atoms of flourine.