Question

4. Silver chloride is a relatively insoluble salt. Only 1.92 mg of AgCl will dissolve per liter of water at 25°C. How many parts per million of Agt can be present in water at 25°C? Assume the density of the solution equals the density of water, 1.00 g/mL. a. 0.52 ppm b. 0.93 ppm c. 1.92 ppm d. 9.30 ppm e. 52.0 ppm

Answer 1

ppm = mass of solute(in mg)/Volume of solution( in lit)

=1.92 mg/1 lit

=1.92 ppm

AgCl -----> Ag+ + Cl-

1 mole AgCl =1mole Ag+

Ag+ concentration = 1.92 ppm

Answer-- (c) 1.92 ppm