Part 1: A given weak acid HZ has a Ka = 4.2 × 10−6 .What is the H3O+ concentration of a solution of HZ that has a concentration of 0.65 mol/L? Answer in units of mol/L.

Part 2:What is the pH of this solution of HZ?

Part 3: What is the percent ionization of HZ in this
solution? Answer in units of %.

Non renewable resources like petroleum eventually

How many moles of al3+ ions are in 1.25 moles of al2o3

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.