i have a Chemistry lab (level 2) final exam soon.
our teacher told us that we would have % transmittance problems, can someone show me an examples (maybe from an online test) or a made up one, of what i might expect to find on my chemistry lab final? like an examples of a % transmittance problem?
he just gave us this equation and told us we'll solve problems with it:
%T = I/IO x 100
I would look closely at your notes, I do not know what you studied in your class. But I suspect it was Beers Law, or Beers-Lambert
http://teaching.shu.ac.uk/hwb/chemistry/tutorials/molspec/beers1.htm
he just gave us the equation and he did mention beers law. thanks for the link
Sure! I can certainly give you an example of a percent transmittance problem that you might encounter on your Chemistry lab final exam.
Example problem:
A solution of a compound has an initial intensity of 2.5 and a final intensity of 1.8. Calculate the percent transmittance of the solution.
To solve this problem, we can use the equation that your teacher provided:
%T = I/IO x 100
First, we need to identify the given values:
I (final intensity) = 1.8
IO (initial intensity) = 2.5
Now, let's substitute these values into the equation:
%T = (1.8/2.5) x 100
Next, we can calculate the percent transmittance:
%T = 0.72 x 100
%T = 72
Therefore, the percent transmittance of the solution is 72%.
In this problem, we used the given equation %T = I/IO x 100 and substituted the provided values to find the percent transmittance. It's important to understand that this equation represents the relationship between the final intensity (I) and the initial intensity (IO) of a solution. By plugging in the given values into this equation, we were able to determine the percent transmittance.