chem lab

posted by .

ok I'm having trouble with graphing this chemistry lab. It's on atomic emission spectra. In this experiment we observed the line spectrum of first helium, and here is the data:
color: distance: wavelenght:
violet 20.35cm
light blue 21.70cm
green 23.08cm
light green 22.75cm
yellow 27.70cm
red 31.70cm
faint red 33.95cm
and then for hydrogen:
purple 19.57cm
green 22.47cm
yellow 26.95cm
red 31.00cm

Its given the visible helium emission lines:
wavelenght(nm) relative intensity
447.1 200
468.6 30
471.3 30
and so on...

Also there is a table of colors of visible light:
wavelenght range (nm)
380-420 violet
420-440 violet-blue
440-470 blue
470-500 blue-green
and so on...

Now I'm asked to make a calibration curve for helium. distance along meter stick A vs. waelength
I know Y is the distance (cm)which we found out in the lab and wavelenght (nm) is the X.
I don't understand how I would set up the excel.
plzzzzzzzzzzzzzzz help

  • chem lab -

    Personally, I wouldn't waste my time on setting up a program on Excel. If you were to do this every day for a year it would make sense but to do it once it is easier to calculate each line and graph it manually. You can be through with it by the time you set up the program. Of course, you may have been asked to graph it ON THE COMPUTER with Excel in which case just ignore this response. I don't know how to use Excel to graph. However, if you will go to the Excel help button and type in graph, the instructions will come up. I have found the Help section very useful.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chem

    why are the atomic emission line spectra different for each element?
  2. chem lab

    I'm doing a lab on helium and hydrogen emission spectra. so I got violet 20.35cm blue/green 21.70cm green 22.75 light green 23.08 yellow 27.70 red 31.70 faint red 33.95 and I also have the wavelenghts for helium spectra, its given. …
  3. Chemistry Lab

    Last week, I did titration of Zn with EDTA experiment. I used calmigte as the indictor. The endpoint of this titration is supposed to be blue. The color change go from wine-red to violet to Blue. I did a mistake by stopping the titration …
  4. Chemistry Lab

    Last week, I did titration of Zn with EDTA experiment. I used calmigte as the indictor. The endpoint of this titration is supposed to be blue. The color change go from wine-red to violet to Blue. I did a mistake by stopping the titration …
  5. Astronomy - help!

    Imagine that you have obtained spectra for several galaxies and have measured the observed wavelength of the H emission line of atomic hydrogen. The rest wavelength of H is 656.3 nanometers (nm). Your results are as follows: • …
  6. Chemistry

    I'm doing a flame testing lab in which I'm supposed to be able to identify an unknown element by observing the color it emits once heated. The color of the flame after heating this unknown metal is a light pinkish-violet. The question …
  7. physics

    The spectrum of light from the galaxy M100 has a prominent dark line at a wavelength of 592.2 nm. The same spectral line observed in a lab on earth has a wavelength of 589.4 nm. How fast is M100 moving relative to earth?
  8. chem lab

    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 …
  9. Physics - Hydrogen Emission spectrum

    a) Describe the emission spectrum of a hydrogen discharge tube b) Explain why different color lines appeared in different position in the spectrum. Use a suitable atomic model to help construct your answer. c) Explain how do you decide …
  10. chemistry

    What are emission spectra? Is it correct to say . The pattern of spectral emission lines produced by an element.Each element has his own unique emission spectrum. What do you think?

More Similar Questions