Answer:
21.4 ×10²³ particles
Step-by-step explanation:
Given data:
Number of moles of aluminium sulfate = 3.55
Number of particles = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
For 3.55 moles of aluminium sulfate:
3.55 mol × 6.022×10²³ particles / 1 mol
21.4 ×10²³ particles