Calculate the number of molecules in 4.0 mol H2O.

A0.60 ´ 1023 molecules
C2.4 ´ 10–23 molecules
B2.4 ´ 1024 molecules
D2.4 ´ 1023 molecules

Verified Answer :

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

y = 4 * 6.02x10²³

y = 2.4x10^24 molecules

answer b

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