Question

21.84 grams of d calcium chloride are dissolved in water to a final volume of 562.43 mL. The resulting solution has a density of 1.10 gram per milliliter at this temperature. What is the molarity of calcium chloride in the solution

Answer 1

Answer:

0.35 M

Explanation:

Molar mass of calcium chloride= 40+2(35.5)= 111gmol-1

Mass calcium chloride= 21.84g

Volume of solution= 562.43ml

From

n= CV

But n=m/M

n= number of moles

C=concentration

V= volume of solution in litres

m=mass of substance

M= molar mass of substance

n=21.84/111= 0.197moles

C= 0.197 ×1000/562.43

C= 0.35 M