Acids And Bases Flashcards
H+=
H3O+
Properties of acids
Produces h+ Sour Corrode metals Electrolytes React with based to form salt and water Turns blue litmus paper red
pH>7
Bases
pH<7
Acid
Properties of bases
Produces OH- Bitter chalky Are electrolytes Soapy slippery Turns red litmus paper red
Ends in hydroxide
Base
Naming acid
Binary ide
Hydro (stem) ic acid
Naming acid
Ternary ate
(Stem) ic acid
Naming acid
Ternary ite
(Stem) ous acid
Arrhenius theory (traditional)
Acids produce h+
Bases produce OH-
Problem to Arrhenius theory
Some bases don’t have OH-
Bronsted Lowry theory
Acids- proton donor
Bases- proton acceptar
Proton
Hydrogen atom that lost its e-
Lone pair
Two e- not involved in pair
Lines pairs go with
Bases, need lone pair to act as base
Anfoteric
Act as acid and base
Conjugate pair
Difference of hydrogen ion
Acid more hydrogen
One less is base
Strong acids/bases
100% ionization
Single arrow
K»»»»1 very much greater than one
Weak acids and bases
Much less than 100% ionization
Reversible reaction
K«««1
What don’t have any concentration
Liquids
pH scale
is a way of expressing the strength of acids and bases
PH formula
-log [h+]
[H+] formula
[h+]= 10^-PH
In a neutral solution, formula for [h30+][OH-]=
[h30+][OH-]= 1.00x10^-14
pOH formula
pOH= -Log [OH-]
PH paper
Multicolored
Universal indicator
Multicolor
Natural indicators
Red cabbage, radishes
When Ka is so little it is neligable, neglect which
Neglect the reactants x
Only do it if it’s weak acid
Concentration=
Molar
What makes acid acidic
The excess hydrogen ions
Which acids and bases dissociate
Strong acids, completely ionize completely while weak acids don’t
Strong binary acids
HCL, HBr, HI
All others are weak
Strong acids with ternary
O great than #H by two or more the acid is strong
What makes bases basic
The excess hydroxide ions (OH-)
Strong bases
Strong binary based
Made of group 1 or 2 metals and hydroxide. All others weak
Salt hydrolysis
Acid and bases go through neutralization
Acid and bases go through neutralization to produce
Salt and water
Three possible salt hydrolysis
Strong acids and base
Strong acid weak base
Weak acid strong base
To make neutral salt
Strong acid
Strong base
To make acidic salt
Strong acid
Weak base
To make a basic salt
Weak acid
Strong base
A weak acid and weak base will produce
Any type of solution relative to the strengths of acid and base
Salt is
An ionic compound
Neutralization
Chemical reaction between acid and base that produces salt and water
Does neutralization always mean pH=7?
No!!
Titration
Experiment technique
Neutralize experiment to determine concentration of solution
In titration the unknown is in the
Earlyn Myers flask
Known solution is in the
Byrate
Equivalence point (end point)
Point at which equal amounts of h3O+ and Oh- have been added
Equivalence point is determined by (end point)
Indicator color change
pH Meter, dramatic change in pH
Titration formula
MVn=MVn
Titration
M-
V-
N-
M-molarity
V-volume
N-number of h+ ions in acid or Oh- ions in base
When acids dissociate
Cations go with
Oh-
When acids dissociate
Anions go with
H+
Reacts with certain metals
Acid
Reacts with carbonate
Acid
In a solution a weak acid produces
A mixture of molecules and ions
Why are Ka values all small numbers
Solutions contain high concentration of un ionized acid molecules
What is value or Kw at 298 K
1.0x10^-14
Standard solution
Solution of known concentration