Question

what is the number of molecules in a drop of water weighing 0.2 gram?​

Answer 1

Answer:

0.2g of water = (6.022 x 0.2 / 18)x 10 ^23 = 0.0669 x 10 ^23 = 6.69 x 10^21 molecules

hope it helps you!!

a

mark me as the brainliest!!