What is the concentration of an AlCl₃ solution if 150. mL of the solution contains 450. mg of Cl^- ion?

Question

Quizplus · Accepted Answer

To find the concentration of AlCl3, first convert 450 mg of Cl- to moles (450 mg = 0.450 g, and the molar mass of Cl is 35.45 g/mol). This gives 0.450 g / 35.45 g/mol = 0.0127 mol of Cl-. Since each AlCl3 provides 3 Cl- ions, the moles of AlCl3 is 0.0127 mol / 3 = 0.00423 mol. The concentration is then 0.00423 mol / 0.150 L = 2.82 × 10^-2 mol L^-1.

What Is the Concentration of an AlCl3 Solution If 150

What Is the Concentration of an AlCl₃ Solution If 150