Question

calculate the number of molecules in a drop of water having with 0.1 gram​

Answer 1

Answer: molecules =

mole X 6.022x10^33

Explanation:

= 0.1/18 x6.022x. 10^23

=0.033x10^23

3.3 x10^21 molecules

Answer 2

Answer:

3.345×10^21 molecules

Explanation:

Hey... It's your answer

See, atomic weight of water or H2O is 18g

That means, 18g of H2O contains 1 mole and 1 mole contains 6.022×10^23 molecules/atoms

So, 18g of H2O contains 6.022×10^23 molecules

0.1g of H2O will contain =

(6.022×10^23 × 18)/0.1 = 3.345×10^21 molecules

Hope this helps

:-) :-) ^_^ ^_^