Answer:
53.11 × 10²³ molecules of CO₂
Explanation:
Given data:
Mass of CO₂= 388.1 g
Number of molecules = ?
Solution:
Number of moles of CO₂:
Number of moles = mass/molar mass
Number of moles = 388.1 g/ 44 g/mol
Number of moles = 8.82 mol
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.
1 mole = 6.022 × 10²³ molecules
8.82 mol × 6.022 × 10²³ molecules / 1 mol
53.11 × 10²³ molecules of CO₂
