Can somebody please answer this question

Question

8.59E+20 molecules of C₆H₁₂O₆ equals    moles of C₆H₁₂O₆.

Answer 1

Good old Avogadro's number says there's 6.02*10^23 molecules in a mole. We'll just divide 8.95*10^20 by this number. (It's the same reasoning as if somebody said, "I have 24 eggs. How many dozens do I have? We know that a dozen is 12 so we'd divide 24/12 and get 2 dozen. We're just doing the same trick with way bigger numbers.) (8.95*10^20) / (6.02*10^23) = 1.49*10^-3 moles.