Answer Happy

11. Which of the following combinations will not result in the formation of a buffer solution? 1.acetic acid-sodium acetate 2.Formic acid-sodium formate 3.Acetic acid-hydrochloric acid 4. Boric acid-sodium borate 12.Which phrase accurately completes the statement, a buffer? 1.can be composed of a weak acid and its salt 2.must contain fairly high concentrations of acid and base components 3.can be made up of equal concentrations of acid and conjugate base components 4. has the ability to resist pH changes when small amounts of an acid or base is added 5.All of the above accurately completes the statement. 13.The Ksp expression for magnesium fluoride is Ksp=[Mg2+][F-1] 1. True 2.False 14. The greater amount of acid or base the solution can absorb means the greater the buffering capacity. 1. True 2.False 15.Qsp calculations are used to determine if a precipitate will form. 1. True 2.False