How much is the molar extinction coefficient of methylene
blue at wavelenght 664 nm? Are molar extinction coefficient
depend on concentration of solution?
- 3 Answers
- 24641 Views
- Indfrag Limited, I also Faced
- E-Mail Answers
Answer Posted / bob
At 664, it's 74028. Extinction coefficient is not dependent
on concentration, but absorption is directly dependent on
concentration and the distance (length) that the light must
travel through the solution. So you can use a very thin
layer of concentrated solution, or a test-tube full of a
less-concentrated solution to get the same absorbance.
A = e*c*d.
e = extinction coefficent
c = concentration (molarity)
d = depth (optical path length)
| Is This Answer Correct ? | 20 Yes | 5 No |
Post New Answer View All Answers
Why does the experimental lattice enthalpy of NaI differ greatly from the theoretical lattice enthalpy?
what does 50 denote in dowex 50 ????
what kind of question can be asked in interview for UV- VISIBLE & give me answer ?
During Soundness testing of Cement by Lechatelier method the Cement mould expands about 20 mm when merged in curing water for 24 hours after mould preparation.In that Cement MgO content is about 3.0%,SO3 is about 2.6% & Blaine is about 360 M2/Kg.Guess the reason & suggest solution.
What is the brigg's raucher reaction?
In testing of Cement the formula for water requirement for setting time is as below- Water required for setting time = NC x 0.85 The question is that what is the logic of 0.85 in this formula??
How to accelerate electron capture decay?
a sample of gas occupies a volume of {450.0 ml}at {740 mm Hg}and[16C]determine the volume of this same sample at [760 mm Hg]and [37c]?
Write the each half cell reaction and also net cell reaction for a cell
WHAT IS THE SYLLABUS OO GROUP -I?
what is allowable limit Of stray light for a spectrophotometer laboratory instruments ?
The use of vermilion on rubric of the Tartar Relation is confirmed by the presence of three lines attributed to HgS. Why should this diatomic have more than one vibrational line?
what is induction on electrical insulators
what kind of question can be asked in interview for polarimeter related ?
How can be set a responds factor for evaluating a unknown impurity by HPLC
