Kno3 as a liquid?

[civil disobedience]

i'm a helper in my biology and chemistry classes at school. i just sit there and rinse out the test tubes and stuff inside the storeroom where they keep there chemicals.

Theres a container that says Kno3. i've seen Kno3 and it was in a powder. i was just wondering if its possible the container could just have water in it or somthing?

[ac3yal0ne]

im almost certain its a high concentration of kno3 in water because it easily disolves

[jrly]

Why would it have water in it?

[civil disobedience]

i dun know. maybe they were cleaning or somthing?
whats a school doing with a high concentration of Kno3 then anyway?

[jrly]

You can buy it from a store in 98% concentration and school would use if for various experiments, nothings springing to mind though.

[civil disobedience]

so, its a high concentration then. like the other guy said?

[jrly]

If the school has it then it is probably in powder in 100% concentration, because I have no idea why you would have it in water with a lower concentration.

[civil disobedience]

i think you misunderstood me. i ment the liquid actully looks like water. not that i know if there is actully any Kno3 in there to begin with. maybe i'll just go and mess around with some a little later then? then we'll know.

[slippy]

Are you perhaps getting KNO3 and HNO3 muddeled up? I mean you could have 100% pure KNO3 and hit it with a hammer and it won't do anything, all KNO3 really is is a farily inert oxidiser, I dont see why the school would stock it let alone keep it in an AQ solution, but then I don't think they would have HNO3 either. The only useful stuff I could get my hands on when I was at school was glassware, filter paper, Ph testers and Mg ribben.

[jrly]

Originally Posted by civil disobedience

i think you misunderstood me. i ment the liquid actully looks like water. not that i know if there is actully any Kno3 in there to begin with. maybe i'll just go and mess around with some a little later then? then we'll know.

I didn't realize that you were saying that it was an aqueuos solution, I thought that it was a bottle and you were wondering what might be in it since it was a bottle and said KNO3 on it. I have no idea why it would be a liquid and it seems not very smart to have something misnamed in a chem lab.

[MasterSmiffy]

hey,
i am most sertain that kno3 has to be in powder form,

yours sincerly,
MasterSmiffy

[fenderbender48]

No, its like acYalOne said, its a concentrated solution, most likely. I don't know why anyone would want it in an aqueous solution either, but let's face it, chem 1 covers all single and double replacement reactions, etc. I remember having to balance equations all the time and I saw KNO3 a lot. Maybe the teacher just likes to show off some stupid bubbling reaction and happened to find that. Who knows.

KNO3 + HCl ---> KCl + HNO3

or something like that

[xkdjs]

i once did a chemistry lab in class where we dissolved KNO3 in hot water then watched crystals form as it cooled maybe the teacher did they that lab then had the students pour the liquid into that jar so she could take it to hazardous waste disposal.

[john lee]

Originally Posted by civil disobedience

i'm a helper in my biology and chemistry classes at school. i just sit there and rinse out the test tubes and stuff inside the storeroom where they keep there chemicals.

Theres a container that says Kno3. i've seen Kno3 and it was in a powder. i was just wondering if its possible the container could just have water in it or somthing?

Kno3 mixed with water is used to feed plants,have there been any experiments with plants.Plants grown with and without KNO3? John.

[mastermagician]

You guys, this is a very very common occurrence. I worked in my High School lab a while back and was in Qualitative chemistry, all of those solutions are used in Qualitative chemistry to determine what some sort of mystery chemical is. They generally all have a pretty low molarity unless you're dealing with acids, which means that it's really not going to be of use in anything other than whatever they use it for in class.

[X-ray Cat]

In biology classes a potassium nitrate (KNO3) solution is used for colouring or altering plant tissues making them better observable under the microscope. It's nothing special, just a salt dissolved in water. Useless unless you have a giant bucket of it and boil the water off..

[numerator]

potassium nitrate solution is also used to make salt bridges in galvanic cells