Question

Calculate the number of molecules in 4.0 mol H2O.

a. 0.60 ´ 1023 molecules
c. 2.4 ´ 10–23 molecules
b. 2.4 ´ 1024 molecules
d. 2.4 ´ 1023 molecules

Answer 1

1 mole H2O ---------------------- 6.02x10²³ molecules
4 moles H2O--------------------- y molecules

y = 4 * 6.02x10²³

y = 2.4x10^24 molecules

answer b

hope this helps!.