1.

If 1 ml of water contains 20 drops. Then no. of molecules in a drop of water isA. `6.023xx10^(23)`B. `1.376xx10^(26)`C. `1.673xx10^(21)`D. `4.346xx10^(20)`

Answer» Correct Answer - C
1 mL of water = 1 g of water
`:.` 20 drops of `H_(2)O = 1g`
1 drop of `H_(2)O = (1)/(20)g=0.05g`
`=(0.05)/(18)`mole `=(0.05)/(18)xx6.23xx10^(23)` molecules
`=1.673xx10^(21)` molecules.


Discussion

No Comment Found

Related InterviewSolutions