Question

Calculate no. of moles and molecules present in 0.065 mg of h2o

Answer 1

Calculate no. of moles and molecules present in 0.065 mg of h2o is 6.022 × 10 ^ 23

Answer 2

Explanation:

given

molar mass of water =2xH+ox1

=2x1+16x1

=2+16

=18

weight of water=0.065mg= 6.5x10*-5

no. of water = weight of water/

molar mass of water

=6.5x10*-5/

18

=3.611x10*-6