Question

calculate the number of particles in 0.25 moles of water molecule

Answer 1

To calculate the number of particles in 0.25 moles of water molecule, we have to follow the following steps given below:

Formula of Water is H2O.

Atomic weight of H = 2 and O = 16.

Atomic Weight of H20= 2x2 = 1x16= 20 gm/mole.

No. Of Moles= 0.25/20 =0.0125.

To calculate the no. of particles in water we will multiply it by

0.0125 x 6.022 x 1023

0.075275 x 1023

Answer 2

Explanation:

1 Mole of water = 18 mole

Mass of mole = 0.25 mole

1 Mole of O2 particles = 6.022×10²³

0.25 Moles of O2 particles = 6.022×10²³ × 0.25

= 1.505 ×10²³