Equations to know Flashcards
1
Q
to calculate mol
A
n=M/Mr
2
Q
to calculate concentration
A
c=n/v
3
Q
to calculate volume at room temperature
A
v=n*24
4
Q
to calculate the number of particles
A
N=n*Na
5
Q
to calculate pressure and volume
A
Pv=nTR
6
Q
to calculate atom economy
A
(Mr of desired product/sum of reactants)*100
7
Q
to calculate the percentage yield
A
(actual yield/theoretical yield)*100
8
Q
to calculate heat energy
A
Q=mcΔT
9
Q
to calculate ΔH
A
ΔH=Q/n
10
Q
to calculate avr ΔH
A
sum of ΔH of reactants - sum of ΔH of products
11
Q
to calculate electrode potential
A
E = E right - E left
right is reduced element
left is oxidised element
12
Q
to calculate ΔG
A
ΔG = ΔH - TΔS
13
Q
to calculate the rate of reaction
A
Rate = k[A]^m[B]^n
powers are the order of reaction
14
Q
to calculate pH
A
pH = -log[H]
15
Q
to calculate Pka
A
Pka = -log(ka)
