Question

How many molecules of water are present in a drop of water which has a mass of 50 mg?

Don't search from Google ​

Answer 1

Answer:

ans is 167.27 ×10^20

Explanation:

18g or water will contain 6.022×10^23 molecules

and 50 mg will contain = 6.022×10^23×50×10^-3/18

=16.727 ×10^20

Answer 2

Answer:

167.27 * 10^20 molecules..

Explanation:

18g of water will contain 6.022 * 10^23 molecules

and 50 mg will contain =

6.022 * 10^23 * 50 * 10^-3/18 = 16.727 * 10^20