• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Flame Tests

Extracts from this document...

Introduction

Zachary May

9-11-01

4th

Flame Tests

Summary:  In this lab, our purpose was to determine the identity of an unknown solution.  We tested each of 9 solutions and a solid.  We identified the color by recording the spectroscope reading, through cobalt glass, and by observations by the naked eye.  Our procedure included using a wire to get a sample of the substance and perform the flame test.  To ensure proper colors, we cleaned each one by dipping them in HCl and then burning them.  By comparing the flame color of the unknown substance to the flame color of the other substances, we were able to determine the identity of the solution.

Data:image00.png

Table1

image01.png

...read more.

Middle

SO4,BaCl2, the NaCl crystals, and the combination of Na2SO4plus K2SO4 all appeared to the naked eye to be about the same color.  In table 1, all values that are proceeded by a <?> did not have a clear spectroscope reading, or the flames for each didn’t last long enough to get an accurate reading.  The accurate spectroscope readings showed strontium chloride to have a spectrum reading from 490-640 on the second trial.  The unknown substance had a reading of 440.  The combination of sodium sulfate and potassium sulfate gave a reading of 450.  From the naked eye perspective, the potassium sulfate by its self looked light pink and light blue, but the spectroscope reading
...read more.

Conclusion

2, and the combination of Na2So4 and K2SO4.  In the spectroscope readings, it resembled barium chloride somewhat.  In the cobalt test, it resembled NaCl crystals.  My data concludes that the metal is a combination of sodium sulfate and potassium sulfate.

        7.  The flame test is not the best test to perform to find the identity of an element, because so many other factors are involved, such as room air, temperature, outside light, and contamination due to improper cleaning.  

        8.   The spectroscope can show the colors to both metals in a solution if they are mixed.  In the barium chloride, this was evident.  The spectrum showed an array of colors.  The best example of this is in the lithium chloride, where there were two distinct lines on the spectroscope, showing both metals.

...read more.

This student written piece of work is one of many that can be found in our GCSE Pay Phone Problem section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Pay Phone Problem essays

  1. The Framework Knitting Museum: An Accurate Reflection of History or Not?

    and the Framework Knitter only 3, they both had 3 floors, and both cottages had rather compact space. The floors on the ground floor were the same, both having the same black bricks, although they'd try to cover these with the recycled rugs.

  2. Perception - the interpretation of information.

    One of the very first to look at whether perception is learned or inherited was that of Stratton, in 1893. He spent a week wearing an inverting lens over one eye. (The other eye was covered with an eye patch).

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work