Acid Bases Flashcards
What is the Arrhenius definition of acid
Base
Acid is substance the increases H+ concentration
Base increase concentration of OH in solution
What is H3O
Hydronium
What is Lewis acid
Lewis base
Acid: species that accepts electron pair
Base: donates electron pair
What is the bronstead lowery def of acid and base
Acid: donates proton
Base: accepts proton
What is a polyprotic acid?
Acid that can have more than one acidic proton
Ex.
What is a strong acid
Strong base
Acid that ionizes completely in water to give H or H3O
Base that ionizes completely in water to give OH (hydroxide salts)
What are weak acids, give examples
Substance that partly diccosiates to give H or H3O
H3PO4, H2CO3, H2SO3, HCIO
CH3COOH, C2H5COOH
What are 3 example of weak acids
Lactic
Benzoic
Ascorbic acid (Vitamin c)
What is a neutral substance
Doesn’t have acid or base characteristics
What is Ka
Kb
Acid dissociation constant
Base dissociation constant
What does Ka and Kb tell us
The relative strength of the acid or base, higher, the stronger
What is autoionization
When water reacts with just itself to make H/H3O and OH
What is Kw
What is it at 25 degrees c
The autoionization constant/ ion product constant, get it by multiplying H and OH concentration
1X10^-14
In pure water the concentration of H and OH are….
Equal
Can be solved for at any temp
At 25 deg the concentrations are 1x10^-7
How do you find pH and pOH
How to fin H and OH given ph
-log [H/Oh]
10^(-ph/poh)
