Question

find the morarity of 2.22g of CaCl dissolve in water to make a solution of volume 2 L​

Answer 1

Explanation:

Molarity of a solution is defined as number of moles of solute dissolved per liter of solution.

Molarity ( M) = # of moles of solute / volume of solution (L)

Volume of Solution = 100 mL or 0.1 L

moles of CaCl2 = mass of CaCl2 / molar mass of CaCl2

moles of CaCl2 = 11g / 111 gmol−1 = 0.099 mol

Molarity ( M) = # of moles of solute / volume of solution (L)

Molarity (M) = 0.099 mol / 0.1 L = 0.99mol/ L