Answer:
The numer of molecules is 9, 03 x 10 ^ 23 molecules. See the explanation below, please.
Step-by-step explanation:
We use the number of Avogadro:
1 mol------- 6, 02x 10 10 ^ 23 molecules
1, 5mol ---x = (1, 5 mol x6, 02x 10 10 ^ 23 molecules)/ 1 mol=
x= 9, 03 x 10 ^ 23 molecules