Question

calculate molar concentration of sol having 20% fecl3 sol having density 1.1gm/ml​

Answer 1

Explanation:

Molar mass of FeCl3 = 56 +3 × 35.5.

= 162.5 g.

20 % by Mass/ mass means 200 g out of 1000 g.

Volume of 1000 g solution = 1000/1.1= 0.909 L.

Molarity = mass of solute/ molar mass x volume of solution in litres.

= 200/162 5 ×0.909 =1.35 M.