Ishwar S. answered 10/19/18
Tutor
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University Professor - General and Organic Chemistry
Hello Monica
1 mole CaO = 6.02 x 10^23 formula units CaO
1.72 mol x (6.02 x 10^23 formula units CaO / 1 mol) = 1.04 x 10^24 formula units CaO