3. A solution is prepared by dissolving 25.0 g of AlCl3 (molar mass 133g/mol) in water to obtain 100 mL of solution. What is the molar concentration of chloride ions (NOT that of AlCl3) in the solution?

4. Xylazine is a veterinary sedative that illicitly reported being consumed by human and resulted in several overdose-deaths in the U.S. If 10 tablets (each of 100mg) are discharged into the toilet and diluted to 1000L of wastewater, what would be the concentration of xylazine in wastewater? (assume the density of wastewater is 1 g/mL).

8. Which will have the highest boiling point?

- 0.15 M mgCl2

-0.40 M glycerin (C3H8O3)

-0.20 M HF

-0.10 M (NH4)2SO4