7. (1 point) colligative properties are directly related to the *
freezing point of a solute
nature of the solute
nature of the solvent
number of solute particles in a solution
8. (1 point) what is the formula for sulfuric acid? *
h₃so₄
h₃so₃
h₂so₄
h₂so₃
9. (1 point) which of the following is an arrhenius base? *
ch₃cooh
hso₄⁻
lioh
nh₄⁺
10. (1 point) a lewis base is a substance that can *
accept a pair of electrons
accept a hydrogen ion
donate a hydrogen ion
donate a pair of electrons
11. (1 point) which compound is amphoteric and can act as both a brønsted-lowry acid and a brønsted-lowry base? *
ammonia
hydrochloric acid
sodium hydroxide
water
12. (1 point) what are the bases in the following equilibrium reaction? cn⁻ + h₂o ⇄ hcn + oh⁻ *
cn⁻ , h₂o
cn⁻, oh⁻
h₂o, hcn
h₂o, oh⁻
13. (1 point) the products of the self-ionization of water are *
h₃o⁺ and h₂o
oh⁻ and oh⁺
oh⁺ and h⁻
oh⁻ and h⁺
14. (1 point) what type of solution is one with a ph of 10? *
acidic
basic
neutral
the type varies depending on the solution.
15. (1 point) the base dissociation constant is only found for *
concentrated bases
dilute bases
strong bases
weak bases
16. (1 point) a 18m solution of an acid that ionizes only slightly in solution would be *
concentrated and weak
strong and dilute
dilute and weak
concentrated and strong
short answer / essay questions
answer the following with complete sentences if there is math involved show all of your work -the work is worth at least 1 point.
17. (3 points) if the solubility of a gas is 5.6 g/l at 505 kpa pressure, what is the solubility of the gas when the pressure is 1010kpa? *

18. (4 points) you have your choice of sucrose, c₁₂h₂₂o₁₁, sodium chloride, nacl, or calcium chloride, cacl₂ to use to melt the ice on the driveway. explain why each choice will melt the ice, but also include which is the best choice and why. *

19. (3 points) calculate the [h⁺] for the aqueous solution in which [oh⁻] is 1 x10⁻⁹. is this solution acidic, basic or neutral? show your work *

20. (3 points) what is an acid dissociation constant? when can it not be calculated and why? *

21. (4 points total) classify each solution as either an acid or a base using the properties that are stated. what are two ways these solutions are similar? solution a – has a bitter taste and feels slippery solution b – has a sour taste and feels sticky.