Answer:
0.85M
Explanation:
Given parameters:
Mass of CuCl₂ = 400g
Volume of water = 3.5L
Unknown:
Molarity of the solution = ?
Solution:
Molarity is one of the ways of expressing the concentrations of a solution. It is defined as the number of moles per unit volume of a solvent.
Molarity = [tex]\frac{number of moles}{volume}[/tex]
To find the number of moles of CuCl₂;
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of CuCl₂ = 63.6 + 2(35.5) = 134.6g/mol
Number of moles = [tex]\frac{400}{134.6}[/tex] = 2.97moles
Molarity = [tex]\frac{2.97}{3.5}[/tex] = 0.85M
