Question

Number of atoms in 9g of water is close to

Answer 1

Answer:

No. Of molecules = N

given mass = 9gm

Molar mass = 18 GM

N = m/M × Avogadro's no.

= 9/18 × 6.022 × 10^23

= 3.011 × 10^23

1 molecule has 3 atoms so 3.011 × 10^23 has

3.011 × 10^23 × 3 = 9.033 × 10^23 atoms

Explanation: