Question

How many molecules are in 4.50 moles of H2O?

Answer 1

C can be the only correct answer - 6.023 x 10^23 is the amount of molecules in a mol of an element. 4.5 x 6.023 x 10^23 can not equal anything but C.

4.5 x 6.023 x 10^23 = 2.71035 x 10^24

Answer 2

Answer is gonna be: 2.71 x 10^24 molecules

Hope this helps!