Answer:
8.31moles of H2O
Explanation:
Avogadro's hypothesis gives us an excellent understanding that 1mole of any substance contains 6.02x10^23 molecules. This means that 1mole H2O also contains 6.02x10^23 molecules.
Now, if 1 mole of H2O contains 6.02x10^23 molecules
Therefore, Xmol of H2O will contain 5.00x10^24 molecules i.e
Xmol of H2O = (5.00x10^24)/6.02x10^23 = 8.31moles of H2O
