Answer:
0.18mol
Explanation:
Given parameters:
Mass of CaCl₂ = 20g
Unknown:
Number of moles = ?
Solution:
To solve this problem;
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of CaCl₂ = 40 + 2(35.5) = 111g/mol
Number of moles = [tex]\frac{20}{111}[/tex] = 0.18mol
