The number of moles : n = 4.95 x 10 ²⁴
Further explanation
Given
2.98E28 molecules of water
Required
The number of moles
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
n = N : No
n = 2.98 x 10²⁸ : 6.02.10²³
n = 4.95 x 10 ²⁴
