Equilibria Flashcards
1
Q
define conjugate acid and base
A
doubt
2
Q
expression of Kw
A
[H+][OH-] / [H+]^2
3
Q
value of Kw
A
1x10^-14
4
Q
expression of Ka
A
[H+]^2/[HA]
5
Q
formula of pH
A
-log[H+] / pKa + log [salt/acid]
6
Q
formula of H+
A
10^ -pH / Ka x [acid/salt]
7
Q
how to make pKa from Ka
A
-log(Ka)
8
Q
how to make Ka from pKa
A
10^ -pKa
9
Q
2 ways of solving Ksp
A
x2 and 4x3
10
Q
partition coefficient formula
A
organic/aqueous unless mentioned compound is soluble in H2O; in the case formula is aqueous/organic
11
Q
disproportionation reaction 70 C
A
X^2 + NaOH = NaXO3 + NaX + H2O
12
Q
disproportionation reaction at 15 C
A
X^2 + NaOH = NaXO + NaX + H2O
13
Q
define buffer
A
- resists change to pH
2. if small amount of acid or alkali is added
14
Q
equations for blood buffer
A
H+ + HCO3- = H2CO3
OH- + HCO3 = CO3 2- + H2O
