The number of water molecules present in a drop of water (volume = 0.0018mL) at room temperature is

The number of water molecules present in a drop of water (volume = 0.0

1.	The number of water molecules present in a drop of water (volume = 0.0018mL) at room temperature is
Answer» `1.084 xx 10^(18) `6.023 xx 10^(23)` `3.01 xx 10^(23)` `6.023 xx 10^(23)` SOLUTION :B) Number of moles = (Weight)/(Molecular weight) `=(0.0018)/(18) = 1 xx 10^(-4)` [`therfore` 0.0018 mL = 0.0018g] Number of water MOLECULES `=1 xx 10^(-4) xx 6.023 x 10^(23)` `=6.023 xx 10i^(19)`