Unit 4 Acids + Bases

Question 1

If Q = Ksp

Answer 1

the solution is saturated and no precipitation will occur

Question 2

If Q < Ksp

Answer 2

the solution is unsaturated and no precipitation will occur

Question 3

If Q > Ksp

Answer 3

the solution would be above saturation
The salt above saturation will precipitate

Question 4

what are the characteristics of a strong acid

Answer 4

has equilibrium to the far left, are polar, ionizes completely in (aq) solutions, and has weaker bonds to hydrogen

Question 5

What are the 7 strong acids

Answer 5

HCl, HClO4(perchloric), HBr, HI, HNO3(nitric acid), H2SO4, HClO3(hdyrochloric)

Question 6

what is the relationship between pH and Ka (for acids)

Answer 6

the higher the pH the lower the Ka

Question 7

what is the pH of a titration of a weak acid with a strong base at the equivalence point?

Answer 7

pH>7

Question 8

what is the pH of a titration of a strong acid with a strong base at the equivalence point?

Answer 8

pH=7

Question 9

how do you calculate the ksp given the molar solubility?

Answer 9

plug in ksp values into equation, use molar ratio for exponents

Question 10

how do you calculate the pOH of a base given molarity?

Answer 10

use ICE table, plug in molarity for base(products are OH and cation)

Question 11

what is an Arrhenius base?

Answer 11

a molecule that when dissolved in water will break down to yield an OH- or hydroxide in solution

Question 12

what is an Arrhenius acid?

Answer 12

a substance which has a hydrogen atom and can easily give hydrogen ion or proton in its aqueous solution

Question 13

what is a bronsted lowery acid?

Answer 13

is any species that can donate a proton, H +

Question 14

what is a bronsted lowery base?

Answer 14

any species that is capable of accepting a proton