Calculate the number of water molecule present in one drop of water which weighs 0.18g.

Q. Calculate the number of water molecules present in one drop of water which weighs $0.18g$.

Q. What is the mass of a water molecules in gram? How many molecules are present in one drop of pure water which weighs $0.05g$? If the same drop of water evaporates in one hour, calculate the number of molecules leaving the liquid surface per second.

Q. The number of water molecules present in a drop of water weighing $0.018g$ is:

Q. Calculate the number of molecules in a drop of water weighing $0.05$ gm.

Q. Calculate the number of molecules in a drop of water weighing $0.07$ g.