Conclusion
1. What metal ion would you predict to be contained in the sample of unknown? Why?

A: Sodium, Na. Because when we put the unknown substance in the flame it turned orange just like Sodium.

2. Based on your results and observations would this method be practical to determine metals in a mixture? If not, why not?

A: No because if two substances are mixed it may let off a different color.

3. Explain the reason Potassium was visible when using the cobalt glass.

A: Because Cobalt is a brittle, hard, transition metal with magnetic properties similar to those of iron, which allowed us to see Potassium.

4. Explain the effect of the nitrate ion in solution on the color emission.

5. Give at least two reasons why the flame test is sometimes invalid.
A: When solutions of metals are heated they give off characteristic colors. Sometimes the colors may seem alike but be totally different. There may also be a temperature difference.

6. What other means of qualitative analysis are used to identify metals?
A: Qualitative analysis is used to separate and detect cations and anions in a sample substance.

Further Investigation

1. Explain the difference between emission and absorption spectra.
A: Emission Spectra produces thin gases in which the atoms do not experience many collisions because of the low-density.
An absorption spectra occurs when light passes through a cold, dilute gas and atoms in the gas absorb at characteristic frequencies; since the re-emitted light is unlikely to be emitted in the same direction as the absorbed photon, this gives rise to dark lines in the spectrum.

2. Advertising lights are produced and sealed tubes of various noble gases, which emit colored light when excited. Using references, explain the techniques used in producing the lights.

3. Use reference sources and determine the flame color of five additional metal ions.

4. What is a spectral line?

5. Compare the 2 methods. Why is spectroscopy superior to flame test?

DONT COMMENT ON THIS ENTRY UNLESS YOU KNOW THE ANSWERS TO ANY OF THEM =] THAT WOULD HELP ME A LOT AND I WOULD LOVE YOU FOREVER AND EVER. BUT THE REASON IM PUTTING THIS UP HERE IS BECAUSE MY EMAIL WONT WORK AND IM GOING OUT OF STATE AND I NEED TO PRINT THIS OUT WHEN IM THERE SO I HAVE NO WHERE TO PUT IT EXCEPT HERE LOL. I HAVE NO TIME TO PUT IT ON A DISC. SO PLEASE HELP IF YOU CAN. <33

i'll update when i feel like it. =]

come on baby we ain't ganna live forever. .
let me show you all the things we could

do together.

hey loves* omg i haven't updated in such a long time. but sorry so much has been going on. with work and school and such. well my birthday was ahmazing. for all of you who asked i turned 16. =] uhm so lets try to catch up..shall we?

my birthday:

it was pretty shweet.
my friends threw me a surprise party.
i got a lot of the things that i wanted.
such as..my sidekick.
&mytotallyawesomefriends got me some really cute things also.
one got me a Dooney&Bourke wristlet and made me a scrapbook.
one got my The Notebook & A Walk to Remember..my 2 favorite movies.
one made me a cute card kind of things with memories on it =]
one also got me frames for our memories & pjs w. matching slippers. =]
one got me a tiara and jewlery, it was fun flaunting the tiara.

school:

..is really annoying. my chemistry teacher and i have issues at thee moment. i hate him and im pretty sure he hates me for the attitude i give him. algebra 2 sucks too. my teacher doesn't know how to teach.everything else is good.

&such:

uh, even though school is hard i still have mucho time to hang out with my friends. a lot of people aren't into the whole school&hanging out deal put together but i mean come on! how many times do you get to be a teenager? ONCE. so live it right.
i finally saw Saw2 which was freaky as anything. after i got out i was ready to seriously puke. today im going to the mall with my friend which should be fun. so yea. leave those comments and ill reply.

kthanksbye.

2days yo.