chemistry

posted by .

can someone please explain to me in dummy language this question... Why is the graph of transmittance versus concentration not linear?...

Thankyou very much

  • chemistry -

    I suppose the easiest way to look at that absorbance = A = abc and that is a linear graph. But A = log (1/T) so the graph of T versus concn can't be linear because it is a log term.

  • chemistry -

    In dummy language, it is not linear because it is logarithmic by definition.


    absorbance=constant*concentration=kc
    which is linear with concentration.

    but absorbance=10*log P/Po=
    =10log 1/Transmittance
    because transmittance=P/Po

    which leads to T=e-k*concentration
    Thus, it is not linear.

    http://teaching.shu.ac.uk/hwb/chemistry/tutorials/molspec/beers1.htm

  • chemistry -

    why is the hydrous copper sulfate heated to constant weight?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. english

    i need to rite an english speech but i don't know what to do it on and my confidence levels are very very low somebody please help me. it has to be an aussie icon. Hi Caitlin. When we think of an Australian icon, we think of the Boxing …
  2. can someone please help me?

    simplify the following expressions involving complex numbers. (3+2i)-(-7-i) 10 + 3i how did you do that?
  3. year 8 re-Re teachers

    i posted this question before but can`t see it on the page.sorry if it is there. please could someone help me i need to write an essay for re . i don`t really understand what to do. if someone could explain the question id be very …
  4. Calculus please help!

    Suppose you have a set of data points for x and t. Using the below formula you need to graph a STRAIGHT LINE. x = 1/2 a t^2 Now, I know I would graph x versus t, but do I graph: -x versus t -x versus the root of t -x versus t^2 -or …
  5. chemistry

    Help with Beer's Law lab experiment question! So we were told to calculate the concentration of 5 standard solutions but I don't know how to do that exactly. The Concentration of the solution in flask B was .0024 M and our lambda max …
  6. chemistry

    how do I plot absorbance vs concentration and transmittance %T vs concentration on the same graph?
  7. Chem

    I'm confused with Determining the concentration of a soution: beer's law lab. 1.Explain why pure water is set for a transmittance of 100%. - I believe the pure water is set for a transmittance of 100% in order to for a tranmission …
  8. chemistry

    Q: Calculate the unknown molar concentration of CH3NH2 in MeOH titrated against a known molar concentration of HCl ?
  9. Language art

    Just this one question please . 1.According to the MLA style, how should you format the title of a magazine article?
  10. Please help with Chemistry?????

    A standard solution with a FeSCN2+ concentration of 1.55x10^-4M has a percent transmittance (%T) of 18.8%. Another solution of unknown FeSCN2+ concentration has a percent transmittance of 44.8%. A) Calculate the absorbance (A) of each …

More Similar Questions