Help!!!!

[PHATchik]

Ok, unless I can find some scientific person on Elite, I am screwed. I am conducting some experiments where I see if this little light will light up if I stick these copper wires attached to a 9V battery into different substances. I am supposed to tell if it is an electrolyte or not. ANd if so, then what ions are present. I have tested all the substances, but I have no clue on the rest. It is due tomorrow. Can anyone help me?

 

[HighIntensity]

sorry just passing through

 

[PHATchik]

Yea, I'm screwed.

 

[spongebob]

Ok, unless I can find some scientific person on Elite, I am screwed. I am conducting some experiments where I see if this little light will light up if I stick these copper wires attached to a 9V battery into different substances. I am supposed to tell if it is an electrolyte or not. ANd if so, then what ions are present. I have tested all the substances, but I have no clue on the rest. It is due tomorrow. Can anyone help me?

phatchik,

first, electrolytes are aqueous solutions that conduct electricity. and non-electrolytes do not.

electrolytes produces ions when disolved in pure water. a non-electrolyte does not. for example, when you disolve sodium chloride(NaCl), it disolves into just Na+ and Cl- ions. they both move towards the proper electrode(the wire you out into the solution) and thereby creates a flow of current, which completes the circuit and lights the bulb.

the difference between strong and weak electrolytes is seen with the brightnous of the bulb.

so, bulb lights up=electrolyte.

bulb no light up=non-electrolyte.

the ions present are positive and negative.

some strong electrolytes are NaCl, KI, and CaCl2.
some weak ones areHF, NH3, and H2O.

thats right, pure water is actually not a good conductor of electricity, contrary to belief.

 

[spongebob]

i cant believe she just longed off.

 

[smallmovesal]

i got her back hon

 

[PHATchik]

Thanks Sponge hun! I'm sorry I just logged off. That helps a lot. The hard part is figuring out what is in these substances.

 

[spongebob]

Thanks Sponge hun! I'm sorry I just logged off. That helps a lot. The hard part is figuring out what is in these substances.

what do you mean substance? the solution?

 

[PHATchik]

what do you mean substance? the solution?

I mean the stuff I stick the wires in. Like vinegar. Or Coca Cola. Or distilled water with baking soda. That kind of thing. Sigh. I think I am just going to have to wait until in the morning.

And a big thanks to Naturally Anabolic!!!!!!!

 

[spongebob]

I mean the stuff I stick the wires in. Like vinegar. Or Coca Cola. Or distilled water with baking soda. That kind of thing. Sigh. I think I am just going to have to wait until in the morning.

And a big thanks to Naturally Anabolic!!!!!!!

so you dont know what the solution is? you didnt make the solution? without very expensive lab equipment, i dont think you can figure out what the electrolytes are that are in an unknown solution.

now if you made the solution, i.e. NaOH(sodium hydroxide) disolved in H2O, then all you need to know is that it is a stong electrolyte, right???

 

[PHATchik]

Sponge hun, I am giving up. I am going to have to call someone in the morning to get the specific ions present. I've got to get some sleep now. Thank you for all your help hun! I appreciate it.

 

[spongebob]

Sponge hun, I am giving up. I am going to have to call someone in the morning to get the specific ions present. I've got to get some sleep now. Thank you for all your help hun! I appreciate it.

okey-d-dokie. one last comment. there are positive and negative ions in the solution.

i.e. when you dissolve NaCl into H2O, the positively charged Na ions will move towards the negative electrode and the negatively charged Cl ions will move towards the positive electrode. thus creating current flow. both ions are present.

vingar is weak acetic acid. acetic acid is CH3COOH. CH3COO- is a negative ion and H+ is the positive ion. i know that one because we manufacture it at work and sell it.

 

[danielson]

post a list of what you had to test. vinegar might conduct but it is a piss poor electrolyte and doesnt disscociate much (if you think back to you chemistry lessons in high school you ought to remeber the techer going on about dissociation andhow this can be calculated with logarithms etc.

anyhow, just post the list ....it shouldn't be too hard to figure out what was responsible





(and p.s. why the hell are you doing this? you dont do a science related coure do you. warik does biology and he's a computer student. is this an american thing?)

p.p.s. nice to see your not pushing up daisies or anything )

 

[Taps]

I don't understand half the stuff in this thread, but if you ever want to know about the management of executive-level informaion systmes, I'm your man. Or if you just want some cheap sex, I can do that too.

 

[danielson]

I don't understand half the stuff in this thread, but if you ever want to know about the management of executive-level informaion systmes, I'm your man. Or if you just want some cheap sex, I can do that too.

well you can help me if you want.

who's that chick on your avatar. is she your friend

*coughing heaviliy* and does she have any more pics *cough*