Chemical Kinetics Flashcards
1
Q
Sub title?
A
Rate constants and activation energy
2
Q
What was the general idea?
A
Look at 1st order reaction at 2 temps to find 2 rate constants that can be used to find the activation energy
3
Q
Beer-Lambert Law?
A
A=epsilonbc
A=absorbance
Epsilon= molar absorptivity
b=length of pathway
c=concentration
4
Q
What color changes occur with phenolphthalein?
A
Clear —> Pink (Reacts with OH)–> Clear (in excess OH solution)
5
Q
[P]=
A
[P(0)]e^(-kt)
6
Q
Arrhenius equation:
A
k = Ae^(-Ea/(RT))
A=frequency factor
7
Q
Slope=
A
k= log(absorbance) vs. time
8
Q
Spectrophotometer
A
lambda=552 nm
1.999 when blank cuvette’s in
Status indicator should be set to transmittance
9
Q
When taking the second reading for the chilled NaOH you should take the lower/higher of the two?
A
lower
