If a 0.50 mol/L weak acid is diluted to 0.050 mol/L at constant temperature, which of the following will occur? O The hydrogen ion concentration decreases to 0.050 mol/L. O The pH decreases. O The acid dissociation constant decreases. O The percent ionization increases. O all of the above O more than one of the above is correct

Part A Determine whether the following hydroxide ion concentrations ([OH¯]) correspond to acidic, basic, or neutral solutions by estimating their corresponding hydronium ion concentrations (H3O*] using the ion product constant of water (Kw). Hydronium ion concentration [H3O*] Solution condition Greater than 1 × 10-7 M Acidic Equal to 1 x 10-7 M Neutral Less than 1 x 10-7 M Basic It may help to keep the following equation in mind as you work Kw [H3O+][OH¯] [1x 10 7 М]1 x 10-7 м 1 x 10-14 M Drag the appropriate items to their respective bins. • View Available Hint(s) Reset Help [OH-] 5 x 10-12 M [OH-] 3 x 10-9 M [-HO] 1 × 10 M [OH-] 7 x 10-13 M [OH-] 2 x 10-2 M 9 × 10-4 M [-HO) [OH-] = 1x 10-5 M [Он ] — 1х 1о 7 м Acidic Neutral Basic

For each of the following substances dissolved in water, predict whether the expected pH range of the resulting solution will be less than 7, equal or close to 7, or greater than 7.a. ammoniab. gastric juicec. lyed. vinegar

If HCI Is added the concentration of HCOOH Will ? Decrease  Increase  Or remain unchanged