Inorganic Chemistry

Hello, I want to have a clear mind before taking the exam. Isn't the layer of iron can resist corrosion,.ie. rusting, like zinc and aluminium? Also, why is rust so strange, the rust is red in colour? Shouldn't it be yellow or green in colour?

sounds like a good idea to me! Talk about a quick way to get rid of the ice.

I took 3g of KNO3 and put it onto small stainless steel bowl. I expected that if i heat it it will decompose to K2O and some nitric oxides by rather wild bubbling. KNO3 melted almost instantly and when i continued heating KNO3 was still liquid and completely quiet. Just stainless steel had some reddish glow that was clearly visible through liquid nitrate. How to decompose KNO3 not going to still higher temperatures? I want to make some KOH from it. ( Just experimenting on various uses of nitrates. )

in my school, when I was being taught about electrolysis, the electrode that offers electrons are called cathode.... but as more lectures being given, another textbook says the electrode that offers electrons are called anode.... which one is true??? Albert

I have an ampoule of bromine in my collection, and I have it out here on my desk near my window. The window is closed and locked, but there is a chill coming through there. The top of the ampoule, which is sticking up out of my holder, is exposed to that chilly draft. You can see little droplets of bromine condensing where the cool air is hitting the sealed ampoule. If I put my finger where the droplets are forming, the heat from my hand makes them evaporate. But if I wait a few minutes, they come back. That is too cool!

recently i've been considering making ferrates and ferrites, etc from Fe2O3. can anybody tell me how the following reactions sound? Fe2O3(s)+KOH(l) -->K2Fe2O5 (Fe oxidized from +3 to +4) upon addition of water, i believe that it would break to form 2KHFeO3 Fe2O3+NaOCl(aq)+KOH-->K2FeO4 ^scratch that, as it would yield HClO which would decompose the ferrate i have heard of this method: Fe2O3+KNO3-->K2FeO4 but also, i believe it would work with chlorates/perchlorates as the oxidizing agents. Fe2O3+2KClO3+10HCl -->K2FeO4 ^may yield some deranged chlorine oxides though:\ Fe2O3+Na2O2(l)+KOH(l)-->K2Fe2O5

In a hydrogen fuel cell, 1. At anode, why does Hydrogen gas have to release electrons????? what makes that do this?? 2. If the electrons are released, why they travel along the metal wire, instead of joining the positive ions in the electrolyte?? 3. What do the characteristics of the hydrogen fuel cell's electrolyte suppose to be?? (Give some examples of electrolyte).... Apreciate for responds Albert

tonight i had the urge to make some iodine, so i did using chlorine displacement. in order to generate chlorine i distilled 300mL of bleach down to a suspension of 75mL precipitated hypochlorites and 50mL supersaturated hypochlorite solution. i then placed a funnel upside-down in this, with the funnel duct-taped to a u-tube. the tube and funnel fit perfectly. this tube went under the surface of 20mL KI solution in a crucible. i added a splash of supersaturated HCl under the funnel, put the funnel back and stepped back. immediately chlorine was evolved, going through the tube and bubbling vigorously out the other end into the solution, which instantly turned purpl…

okay, i understand how these reactions works and in which circumstances, but there are some general concepts that i am confused about. first of all, i know that in Sn2 reactions, generally weak bases are best as nucleophiles..but how can you know what a weak base is? for example, why is CH3CO2- a weak base (sn2 will predominate) and CH3CH2O- a strong base (E2 will predominate)? And..how can u tell what is an aprotic or protic solvent? for example, CH3OH is protic, but CH3CN is aprotic?

What is the difference betweem Calcium Carbide and Calcium Chloride?

sitting in my shed with the Butane heater on and making some pita breads on the grill in front of it, a few grains of table salt (NaCl) fell onto the ceramic element. it burned the typical bright yellow for about a minute then faded out? SO.... What happened to it?

This may seem a rather easy question to ask but why does Magnesium burn so easily. Does it have something to do with the electrons? I'm at a lose when it comes to science like this. Thanks

I was wondering how to dispose of cesium in a safest way possible. Any help would be appreciated thanks.

anybody here familiar with ferrates? supposedly barium superoxide and Fe2O3 yield BaFeO4... as well, molten KNO3 and Fe2O3 should yield K2FeO4 but hey, since when could iron chemically oxidize to +6??

I am making a simple electrolysis machine from some PVC pipe (i hope this isn't too reactive) and would like to know what kind of electrodes to use. Gold is pretty much out, but i've heard a lot about carbon. What type of carbon should I use and where can I get it? Is the graphite from a pencil sufficient? Also, to me more power and more speed = better, so is using the electricity from my house OK, or should I just use some batteries? Thanks.

if anybody has ever thought about making smoke bombs i advise you not too unless you live in a big open area, i have just made a smoke bomb today infact 10 minutes ago, i got the recipe from unitednuclear i thought this might be a bit of fun to do, so i got out the icing sugar potassium nitrate heated it ect, and i poured it in to a cardboard tube i filled it to the top, but there was some left over about 5g worth which dried quickly so i decide to light to see what it looks like and while i am doing that the other one can dry firstly small amounts of smoke are given off then alot and i mean alot, thick dense smoke, which blew back into my house( the back door was open ba…

Technetium, as we all know, is one of two elements with an atomic number less than 83 which is radioactive. (Promethium being the other). When looking around on the web, a lot of sites state that Technetium is highly radioactive and very dangerous. This is something that I kind of have to disagree with. I think that if someone were to obtain a sample of Tc-98, or perhaps it's Tc-99, it wouldn't really be all too dangerous. Here's my reasoning. Tc-98(99) is a beta emitter. It releases an electron when it undergoes decay as a neutron decomposes into a proton and an electron. The Technetium then becomes Ruthenium and the decay chain stops right there as the isotope o…

we all know permanganates exist, but little is said/found of manganates. seriously. do a search online for manganates and all you will find are manganate (VII) which are really just permanganates. i found one site that mentioned the electrolytic oxidation of manganates...but theyre not even listed in the merck index and i cant find them on chemfinder. anybody know why theyre so elusive?

would this work? (1) electrolysis water, collect hydrogen in flask [above cathode - negative] (2) hydrogen is lighter than air so the hydrogen should stay in the flask [if the flask is upside down]: (3) light match and immeditaely turn flask with hyrdogen the right way up so that the hydrogen comes up and catches fire [from the match] will you have a slow but sure mini flamethrower? or will it all go up in flames at once? or will it not work?

Im a student at IFSS in Canada and i need some information on a certain acid, Chlorosulfonic Acid to be precise. If anybody can give me information regarding this acid, such as how much is used in the world, what specifically is it used for, why do industrys and consumers need this compound, how toxic is the compound?, how can it impact the environment...basically the more information the better. The chemical formula is ClSO2OH for anybody who needs it. Thnx for any information you can offer.

I just want to ask... How do you determine which ion gives/accepts the electrons if there are more than 1 cations/anions at cathode/anode?? Please do tell me also why..... thx Albert

why the amount of protons is not in direct proportion to the strength of the electronegativity??? since it is the proton which attracts/holds the electrons.... Albert

you pour water on burning Mg, does it take the O from the H2O and the burn the H2 with the atmosphere? Why does it do this?

is it posssible to do a dehydrohalogenation of Cl using KOH, ethanol instead of NaNH2, NH3. for example: CH3-CH2-CL-C (double bond) CH-CH3 ----> CH3CH2C(triple Bond)CH On the midterm, i put KOH, ethanol, but i got it marked incorrect and the right answer was NaNH2, NH3...but when i read the book, it said either NaNH2, NH3 or KOH, ethanol is possible? somebody help me out here?

first, can anybody tell me where i can obtain KCl without a perscription? secondly, can anybody here tell me how much lithium i could obtain from one lithium battery? thirdly, can anybody tell me how i could do the replacement reaction that follows? KCl+Li->K + LiCl