A sealed ampoule contains 18.0 g of H₂O(l) and 95.0 g of ethanol, C₂H₅OH(l) (molar mass 46.1 g mol⁻¹). The liquids do not react. Approximately how many discrete molecules are present in the ampoule?
a) 3.64×1024 molecules
b) 1.24×1024 molecules
c) 1.84×1024 molecules
d) 1.06×1024 molecules