chem lab

posted by .

hi im doing a post lab sheet for chem class. and im having a little trouble.

i have:

temperature 12.6 C -> 285.6 K
Time 816 sec

but im supposed to find 1/T(K)
it looks like my classmate
did this: 12.6 x 285.6 = 3598.56
however they gave me the response to group 2 also:

and they did not mulitiply because

group 2: 45.0 C -> 318 K
45.0 x 307.8 = 13851. but the answer they gave me was 1/T(K)= 3.14 x 10^-3

im very confused can someone please help me?

by the way this si for an experiment where we put a mixture into a bath and checked to see how long a color would leave from the mixture (purple color).

  • chem lab -

    I agree that you are confused. Apparently this was a potassium permanganate solution and you are doing some kind of experiment on chemical kinetics; however, you haven't given any other details (and those I had to guess). One possibility is that 1/T might be 1/time and not 1/Temperature.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Biology

    I really need help with my science lab. I was sick when we did the lab on Thursday and Friday was a snowday so I did not get to get the observations off my peers. My teacher has allowed people one more day and I do not understand this …
  2. Lab in general

    I just read my syllabus for lab and I am kind of shocked at what it says. I do know that I have to write out procedures of the lab in my nbk before coming to lab but I just read that it says "You will NOT be allowed to refer to you …
  3. O-Chem

    What is EDTA exactly and why do we use it in lab setting?
  4. jessie

    hi im doing a post lab sheet for chem class. and im having a little trouble. we did an experiment where we put a mixture into a bath and checked to see how long a color would leave from the mixture. i have temperature 12.6 C -> …
  5. chem

    The study of kinetics group 1: Temp: 12.6 C T(K): 12.6+273= 285.6 1/T(K): 3.50X10^-3 this one is the x value Time: 816 sec Rate ®: 7.66 x10^-6 LnR: -11.8 this is the y value group 2: Temp: 45C T(K): 45+273= 318 1/T(K): 3.14X10^-3 …
  6. chem - check my answers?

    i already posted this but i tried to solve it on my own can you check at the end of this paragraph?
  7. chem

    I am having trouble coming up with a lab to determine the pka of salicyclic acid! help1
  8. Chem Lab Help

    I wanted to know if any one has done the Determination of ASA Content of Tablets Lab Report. I need help doing the post lab questions
  9. Chemistry(DrBob222)

    So, i did this lab, a solubility and thermodynamics lab of KNO3, and in it we had to determine the delta h delta g and delta s, the question i have is what is the relationship of the signs delta h, delta s, and delta g, to the dissociation …
  10. Chemistry

    For chem we did a kinetics lab based on the rate of reaction of peroxydisulfate ion with iodide ion. I'm supposed to find the amount of S2O3 ^2- consumed for every trial (in moles) If someone could just explain how to do that with …

More Similar Questions