Chemistry

Hi everyone, is there any fun experiments i can do with the following chemicals, Calcium carbonate Sodium hydrogen sulphate Calcium hydroxide Iron (||) sulphate Aluminium potassium sulphate Ammonium chloride Ammonium iron (|||) sulphate Zinc Vinegar. Any replies apreciated thank you:)

Acetic acid (vinegar) is an acid zinc (Zn) is a metal, im pretty sure that when an acid plus metal mix they produce hydrogen gas and a salt, right? But when mixed, nothing happend, not even 1 bubble. Just sat there in the acetic acid. Im guessing The vinegar is too weak an acid, if this is the case how can i get my vinegar from 5% acidity to any higher, Thanks

Okay. So lets say I had 500 microcuries of polonium inside some foil. When the alpha particles hit the foil, they abosrb it and emit a neutron. However,I have 2 problems with this. There is NO WAY I'll be able to get my hands on a decent amount of polonium. Is there an alpha only material that I can get 500 microcuries in a small amout of mass? 2nd, I need a good, relativley cheap material for the foil. It would be great if you helped me out with these questions.

Does anybody know of a process which could be used to extract phosphorus and other valued components from urine? We are looking for means to a add some value to waste waters and finance waste water treatment in developing countries.

Ok, So I am a junior chemistry major doing organic research, but my question hasn't really occured in organic lab and is really more microbiology related, but I assume chemists in certain fields have either run across this problem or already know how to prevent this from happening. I have a chemical, its a racetam nootropic (completely legal), that I ordered a gram of from a chemical provider. Because this nootropic is for personal use and not laboratory use, I have no access to lab chemicals, scales, etc. I dissolved the entire gram in solution and was going to measure my dose in concentrations of 2mg / ml H20. My problem is that because I was in a hurry, I poured this s…

I was looking around at a few methds of making potassium but people seem to say that it is too hard to do at home. I stumbled upon this youtube video ( )It's seems a simple method and does not need extreme heat or any expencive catalysts. Please take a look and tell me if this would work, i have not tried it yet.

as i haven't posted in several months, just an intro. i work in the field of pyrotechnics as both a hobbyist, and a professional. in my occupation, one of the main compounds i come into contact with is flash powder. just a standard binary KClO4:Al flash powder with no adulterants. as probably the majority of you know, this is a pretty dangerous substance if great care is not taken when mixing, storing...etc...so naturally, the industry has introduced a new flash powder product which is supposed to be "safer". of course, "safer" is in the eye of the beholder, and honestly, upon confinement, this new product is just as dangerous as regular flash powder. so here…

hiiii every one i need help to understand phosphouros nmr for phosphine complexes with ttanstion metals

Hi, I need to learn how to interpret NMR, specially C-NMR. Thing is, I'm having a hard time trying to understand it, specially NMR of aromatic compounds, asigning each H/C of the molecule to the corresponding peaks. I'll really apreciate if someone can suggest me a website or a book that explains it.

good day How to extract the nicotine from the propylene glycol or glycerol ? sodium thiosulfate can be useful?

I just made a small error, and I wanted to erase some of my writing on paper. I took the eraser I have, and removed the pencil writing. Then I realized that I have no idea how that works! First of all, when I write, the friction between the (soft) graphite and the paper causes some graphite to stay behind in and around the fibres of the paper. That part I understand (although it's a bit crude). But how the hell can an eraser get that graphite off the paper again? Does it have such affinity for graphite? Is it just an interfacial phenomenon, or is there a reaction? Wikipedia does not explain how it works. This website says that the graphite "sticks" to the rubber…

hiii every one i need books for magnatic properties of complexes

So, I'm starting to notice that EDTA is really annoying to make a solution from. I would like to make a 0.5M stock solution of EDTA, but all I have is EDTA disodium salt. I'm reading that's basically EDTA but more readily soluble. Another thing I keep reading is that I'll have to adjust the pH of the EDTA disodium salt solution in order to make the molecules more soluble, because I keep getting precipitates at the moment. I'm not sure if I can avoid changing the pH or not. If I have to change the pH, then 7.4 would probably be good and in line with the other Tris-HCl 7.4 pH solution I've made.

Does anyone know if it is possible for a molecule of a secondary dibromoalkyl, Br-R1-Br ( eg R1 = 1,4-dibromo cyclohexane) to undergo conventional Negishi coupling with two molecules ( or slightexcess ) of a bromozinc alkylester, BrZn-R2( eg R2 = BrZnCH2COO.C2H5) to give R2- R1 –R2 ? Will BOTH the Br in Br-R1-Brreact together equally at the same rate ? If yes, and if there is a Journalreference mentioning dibromo couplings,similar to above, then kindly quotethis. All the Journal literatures and study is only about monobromocompounds ( Br – R ). No one has researched or mentioned about dibromo compoundcouplings. Your input will be appreciated,thanks.

good afternoon. hcn+naoh<->nacn+h2o How to displace balance to the right towards receiving salt?

Hey, Ive been given a question and I was a bit unsure on my workings or answer could somebody clarify what I've done please. Hydrogen peroxide is a very useful and environmentally friendly bleaching agent. It can be produced in a controlled (slow) way by the reaction. CaO2(s) + 2 H2O(l) Ca(OH)2(s) + H2O2(aq) How many grams of H2O2 would be produced if 20.0 g of CaO2 were reacted with 15.0 g of H2O? (Molar masses in g/mol are: CaO2 = 72.0; H2O = 18.0; Ca(OH)2 = 74.0 and H2O2 = 34.0) Step 1: n(CaO2) = (1mol CaO2)x(20.0g CaO2)/(72.08g CaO2)= 0.2774694 mol CaO2 n(H2O) = (1mol H2O)x(15.0g H2O)/(18.016g H2O)= 0…

Can i make sodium hydroxide from calcium hydroxide? What chemicals are needed? And what are the differances beetween the 2 + will CaOH react with aluminum foil and water the same as NaOH will? Thanks

Hi everyone, is there any fun experiments i can do with the following chemicals, Calcium carbonate Sodium hydrogen sulphate Calcium hydroxide Iron (||) sulphate Aluminium potassium sulphate Ammonium chloride Ammonium iron (|||) sulphate Zinc Vinegar. Any replies apreciated thank you:)

Hello Guys, Just signed up to this forum, quite informative. I need help, i am making in house phenyle concentrates, its a floor wash cleaning solution, i will describe it in depth if required. Problem is we are using a alcohol print which is a thickening agent but keep our formula constant we have many variances in our batches. alcohol print gets mixed with dipentene, formuline, np9, water and fragrances. So could you suggest me an alternative for Alcohol Print ? Regards, Pooya.

Say I'm making a solution of 3 M KCl. I did that today. I think... Anyway, I made about 50 mL of KCl for a pH electrode solution. Now, if I remember correctly, (74.56 g/mol) / 1 L = 1 M solution of KCl 3 * "" with 1 L volume used = 3 M KCl But.. it's not that I'm adding 1 L of ddH2O, right? I put in the KCl, and I add enough water so that it appears as though 1 L of volume has been taken up by both the KCl and the water, right? So, when thinking about that 1 L of volume, I'm also considering the volume the KCl takes up.

Hi Hypothetically speaking, if I run two compounds on an HPLC and they have poor separation/poor baseline resolution how can I improve the separation in terms of changing flow rate. Do I increase the flow rate or lower the flow rate? I know that lowering the flow rate will make the peaks wider.

Hi all, I currently study starch, and a side project I am working on is researching the early history of starch research, which inevitably involves a lot of research about simple sugars (glucose and maltose) from learning that starch degraded with acid to sugars and with enzymes to glucose, maltose and various MW dextrins. To be frank, I am quite amazed at what was known back 100 years ago considering the methods were very limited. Paper chromatography to separate the sugars was not available until 1943. Gas and liquid Chromatography came about 8 years later. Most of the experiments involved controlled degradation with enzymes or acids followed by analysis in a p…

i been looking up all these great chemist recently... and when i look at there groups, the people they work with the undergrads and the post-doctoral guys... there mostly asian, indian and white.... i rarely ever see a black chemist in these groups working for the big time guys

Hello, we are 3 seniors, Josh, Jeremy and Heath, from Niskayuna High School and were looking for help. We are all enrolled in a technology course called Engineering Design and Development (EDD) and in this course we must brainstorm problems, confirm they actually are problems, come up with some solutions, contact professionals in the field, and design and prototype our final solution. We currently have a problem and are working on our solutions, our problem is carbonated beverages overflowing when you open them shorty after they are dropped. We have begun research on the issue of carbonation and were hoping you could help us on how to control carbonation. One …

I was just revising and came across the giant ionic structure, the cube. Well i was thinking, the face of the cube would have charges on it wouldn't it? For example NaCl. The crystal coordination number is 6:6 so 6 Cl's should surround a Na atom and visa versa. Well, at the face of the structure there can not be 6 Cl's surrounding an Na atom and then 6 Na's surrounding those Cl atoms. It would be endless right? The Cl in the centre of all faces only has 5 Na atoms surrounding it. The Na in the centre edge has 4 Cl's surrounding it. Why is this?