Formulas/Abbreviations
(Ka)(Kb)=
1.0e-14
What is a neutralization reaction
a reaction between an acid and a base, makes water and a salt
What are some of the different acid/base problems we will have to face in these troubling times
1. Strong acid/base
2. Weak acid base
3. Buffers
4. Hydrolysis
What is the concentration of HCl if 30mL of 0.10M NaOH neutralizes 50mL of HCl?
1. write the balanced equation
2. Find the moles of what to can3
3. Use those moles to find the other moles
4. Find molarity
A salt formed with a strong acid and a weak base makes a ____ salt
acid
A strong acid has a Ka value (less than/greater than) 1
Greater than
What is salt hydrolysis?
when a strong acid/base is neutralized in the reaction, a neutral salt is formed
Do ions that come from strong acids/bases influence the pH?
No, they fully dissociate
What is the [H+] concentration and pH of 0.01 M solution? Ka = 3.5e-8
1.87e-5 M, pH = 4.73
1. Write balanced equation
2. write equilibrium expression
3. Ice table
4. solve for x (molarity)
5. solve for pH
A salt formed with a weak acid and a strong base make a ____ salt
basic
A weak acid has a Ka value (less than/greater than) 1
less than
What do you do if ions of a salt come from both the acid and the base?
Compare the Ka and Kb, whichever is larger wins. anion= basic, cation= acidic
Where do salts that contain ions come from
a weak acid/base
Calculate pH of 1M KNO2 solution. Ka of HNO2 = 4.5e-4
8.17
1. Know how it will dissociate
2. Weak acids/bases hydrolyze, so it will control the solution, you can ignore the strong acids/bases
3. ICE table
4. Ka/b equation to find M (x)
5. find pH from M (x)
1. Sacid + Sbase =
2. Sacid + Wbase =
3. Wacid + Sbase =
4. Wacid + Wbase =
1. Neutralization reaction
2. Salt
3. Salt
4. Salt of conj acid/base
Ka is
Acid dissociation constant
What is a titration
a carefully controlled neutralization reaction
a salt that contains the anion of a strong acid and the cation of a strong base yields a ____ solution
neutral
aktiv
rah
What is the equivalency point in titrations
the endpoint, where it changes colors, total #of [H+] mols = total # of [OH-] mols, strong acid/base occurs at 7
What is the osmotic pressure formula
pi = MRT
What is "standard solution"
the titrant, the unknown is the analyte
A salt that consists of the anion of a weak acid and the cation of a strong base yields a _____ solution
basic
you must do aktiv
pls
What city was angelina born in