Inorganic Chemistry

what density does nitric acid have at 70% conc, and what density does sulphuric acid have at 80% conc

How do you find the radius of a zinc atom using avagadro's number (6.02 x 10>23), the density of zinc (7.13 g/ml), weight of 1 mol of zinc (65.4 g) and using V=4/3 (pie) r (cubed). I don't just need the answer i wanna know how to do a problem like this! THANKS

undefinedundefinedundefined hi i was wondering if anyone could tell me how to make CONCENTRATED sulphuric acid from car battery acids. and what type of container should i use to store it. thanks

Hey all, I think I need a little help cause I'm a little confused. Well, heres the case: I'm trying to find the % content of Nitrogen in fertiliser by mixing an ammonium sulphate(NH4)2 SO2 fertiliser solution with a known volume of NaOH and then titrating it with a known concentration of HCl. From the equation, if I'm not mistaken, the number of moles of NH4 OH produced would be the same as the NaOH (calculated from a known concentration) 2NaOH + (NH4)2SO2 => Na2SO2 + 2NH4 OH This solution was heated and cooled, and then titrated with HCl and the volume required to change the colour of the indicator was recorded. I'm assuming the important part of t…

I found that my text book's illustration of the glass atoms as silicon oxide, but it said that glass is formed by silicon dioxide. Which is correct?

ups!

I've read a lot of posts saying Ohhh cesium is soooo cool let's blow something up ! And similar posts And i was wondering i mean come on cesium is radioactive. Don't you get like cancer from this. And die a horrible death from radiation. LP Aspirin

hi, i'm not really sure where this thread shoud go, so yeah...sorry if it is in the wrong place. anyway, does anyone know what kind of stuff people test for in drinking water. i know they probably test for minerals; however, other than calcium, i don't really know what specific minerals. thanks.

Hi, I know that becuase of radioactive decay that Iodine-131 which has a half life of 8.04 days becomes Xenon. But when does it become stable and stop decaying?

Is there an easy way to produce oxygen at home?

how do you make aluminium powder could you tell me please

Hey I've been experimenting for quite a while with BP. And finally came across this formula: 60% Kno3 20% Sugar 10% Charcoal 10% Sulfur If you have the time and the necessary materials to make it, Please try it and post your thoughts here. (enjoy and be carefull) Thnx LP Aspirin

Hello, I am a secondary school student currently taking grade 11 university chem. and I was wondering about the decay of atoms. My first question is can regular atoms decay? , can isotopes decay? or is it just radioactive isotopes? And is it just the radioactive ones that release energy? and what determines if alpha, beta, or gamma rays are going to be released. Thank you.

i want to know how to safely extract cesium from cesium chloride. first of all, i need to know just how dangerous chlorine gas is...second of all, i know that sodium melts at 801C, what temp does cesium take? third of all, for electrolysis i will be using a 12V car battery and two steel prongs. i need to know, what type of container is used to conduct this experiment in? also, i know that cesium reacts with air, and burns, so i am hesitant to use deisel fuel, are there any other solutions that cesium will not react with? i've heard vinegar works, not sure though. also, people have told me that the cesium just pops out, like little silver fireworks, is this true? i've read…

whats the difference between covelant bonding and ionic bonding explain what both are please

I was wondering if it was possible to get NaCl03 through electrolysis of salt water, and get reasonable amounts of it using only a 9v battery. would you have to increase the current and lower the voltage? I heard somewhere anything above 3v in electrolysis just heats up the electrolyte.

I saw a formula sodium hydroxide(aq) + aluminium(s) + water (l) to form something. Actually, it is to damage something. But for acid hydrogen chloride(aq)+Al(s) to damage something. Why does sodium hydroxide need to get some water but hydrochloric acid doesn't need to? Doesn't the sodium hydroxide is already in aqueous form and is in water?

yesterday i decided to recover potassium chlorate/potassium perchlorate by adding match heads to boiling water, filtering out the recovered sulfur and cardboard and boiling off the water. well, i found that as i concentrated it, the mixture (that ended up as a solution/suspension of white powder) turned a certain light blue, as seen below. can anybody tell me what that blue is from?

I know its interesting to study, but I don't see how antimatter elements could possibly benefit humanity. Unless, that is, you wanted to create photons (light?). Am I off base here? Does anyone see any possible benefits of Anti-matter elements like Anti-hydrogen?

Hi, I want to make some kno3 from nano3 and kcl, but the only source I have of kcl is 'lo-salt'? This is 2/3 kcl and 1/3 nacl: how do I separate the two? Also, can anyone explain the NaNO3 + KCl -> KNO3 + NaCL reaction in detail, and also how to carry it out? Thanks in advance, Grant

I can't seem to find any information about large scale/worldwide production of sulphur.. could anybody help me please..

How would one go about disposing 1/2 a film canister of black powder without exploding it? I was doing an expriment, and made a lot of waste.

Every Chem forum I have been on has myriad posts on home made explosives. Why do you think this is? Is it born out of genuine scientific curiousity or are a load of terrorists trying to get some free info? Do you think it is acceptable to discuss synthetic methods for producing explosives on a public forum? Not having a go, just curious.

Since there are too many false thermite making instructions on the web (and because I'd like to have a faster way to make a hole through a pine table than sulfuric or permanganic acid ), perhaps it's time to discuss some thermites. This is a formula I found: Lighting mix (for the heat to ignite the thermite): 5 parts | Potassium nitrate 3 parts | Powdered aluminum 2 parts | Sulfur Thermite: 70% Fe3O4 (Fe2O3 will work too?) 23% Powdered aluminum 7% Sulfur (The Fe3O4 and aluminum are heated in an oven to about 320 degrees Fahrenheit, and then mixed with sulfur) I have my suspicions of this formula actually working (I haven't tried it), but who knows.…

Aluminium is covered in PVC. The gap between then fills up with water. The PVC decomposes (caused by light) and forms hydrochloric acid. This then corrodes the Aluminium into Aluminium chloride which goes into the water to form solution. Please can somebody explain why the process after this is continuous even if no more chloride ions are released from the PVC?