Question

If a drop of water weighing 1.8 gm contains 60,230,000,000,000,000,000,000 molecules, then how many molecules are present in 7.2 gm of water? Represent your result in exponent form​

Answer 1

Step-by-step explanation:

Number of molecules in a dot of water of weight 1.8 gm

= 60. 230, 000, 000, 000, 000, 000, 000

= 6.023 x 1000000000000000000000

= 6.023 x 1020

Answer 2

Answer:

Number of molecules in a dot of water of weight 1.8gm

= 60,230,000,000,000,000,000,000

= 60,230×

10000000000000000000000

=6.023×10^22