Chemical formula Definition and 31 Threads

I have seen the structures like X3 (HITP)2 (X = Cr, Mn, Fe, Co, Rh, Os, Ir). Can I replace X with Mg? Will it be stable?

I have recently started self studying chemistry and I am at the point where I'm learning to name chemicals given chemical formulas and vice versa. (Like Iron (III) Oxide --> Fe2O3). I am having trouble with doing this process for polyatomic ionic compounds. I can't seem to remember some the...

My chemistry teacher gave me this problem. I tried and tried, but I couldn't figure it out and the deadline is tomorrow. Please help me out here friends. 1. This is the problem : In a compound which is made of element Y, weight percentage of Y is 72% and N( Nitrogen) is 28%. Also, 3 Y atoms...

Hi guys I'm into rocks and minerals but I'm not a chemist I can't really find a definition between ... chemical formula and Idealised chemical formula ? example below of a mineral sample I purchased a few days ago part info from ... https://www.mindat.org/min-3760.html Chemical Properties of...

Homework Statement I found out that Bauxite has 2 formula, which one is 2Al(OH)3, and the other one is Al2Si2O5(OH)4⋅2H2O. What's the difference of these formula? Homework EquationsThe Attempt at a Solution

Hi, I was hoping I could get some things cleared up. Recently my Solid State professor mentioned that we could simply, from the chemical formula, predict where the band crossings are going to be. For example, take LaFeAsO. Since La has a valency of +3, Fe of +3, As of -3, and O of -2, he...

Lets say you were given an unknown which contains two salts, and your results give you evidence that potassium phosphate, ammonium, and carbonate ions are all present. What are four possible salts that could be your unknown?

What's the chemical formula of bornite?According to wikipedia http://en.wikipedia.org/wiki/Bornite it is Cu5FeS4.According to http://www.spiritofisis.org/knowledge/crystal_files/bornite.htm it is Cu2FeS4 and as per my textbook it is Cu3FeS2.Now,What's the actual chemical formula of bornite?I...

Hi, i need to know the chemical formula of cement and resin and their densities. can someone help me, please? thank you in advance !

Hi guys, I have what I hope is a simple question. basically I have a known crystal structure with a known dopant, however I don't know what the charge on the dopant is and I can't find it in any papers. Now I'm not sure if this is something I just need to find or whether this is something I can...

What is the chemical formula for car exhaust emission

Homework Statement When copper (II) sulfate hydrate, a blue crystalline solid containing embedded water molecules (called a hydrate), is heated in air, it loses the water molecules and the blue solid is transformed to a white anyhydrous (no water) crystal known as copper (II) sulfate.Homework...

Homework Statement I have a couple of problems here that are all part of one homework problem. A,B,C, and D. I have completed what I believe are the correct answers, but I really don't know for sure. This is an online chemistry class, and it really is not very good. I've watched about 3...

Homework Statement For a assessment task at school, I have to compare various types of fuel, one of which is diesel. One aspect of the task is to name the chemical formula for each fuel. The Attempt at a Solution I keep finding that the formula for diesel is C12H23. I know that diesel is...

Homework Statement If limestone (calcium carbonate) and clay (assume aluminum silicate) are mixed together and heated then the result is cement. Cement is a mixture of calcium oxide, carbon dioxide, aluminum oxide, and calcium silicate. These bags can be purchased at any building supplies...

There are 2 parts to this question: 1. If limestone (calcium carbonate) and clay (assume aluminum silicate) are mixed together and heated then the result is cement. Cement is a mixture of calcium oxide, carbon dioxide, aluminum oxide, and calcium silicate. These bags can be purchased at any...

I think this chemical balance is correct but I'm not sure if I am writing it right or not. Any help?

What is the chemical formula of pure milk? What is the chemical reaction taking place when milk combines with salt? thanks in advance.:smile:

what is the chemical formula of amino acid?

Homework Statement A fuel may be deignated by the chemical formula C51 H105 S2 (OH)3 Write out the balance equation for complete combustion of this fuel. Homework Equations Cx Hy Oz Sn [(x) + (y/4)] o2 > xCo2 + (y/2) H2o The Attempt at a Solution The problem is that I...

hello, my name is Jesse and I'm new to the forums. I'm in 10th grade chemistry and i have a question. what is the chemical formula of diesel fuel? i searched it on google and found something about hydrocarbon and i have no idea what this is. please help

If I add the chemicals C3 H6 O (2-propanone) and C8 H18 O (2-ethylhexanol) will I wind up with the chemical formula C11 H24 O2 ? thanks

i m a student of Chemistry , and i got a university assignment and i need ur kind help in this matter , i need information about a chemical its name is [Vetro Paste 0.23A what is this , its chemical formula , structure , its physical and chemical properties , and its uses , please guide...

We did a lab at our school recently but some of the questions regarding the lab confused me. The data obtained from the lab is here: Determining the Chemical Formula of a Hydrate Purpose Find the molecular formula of the hydrate of Copper (II) Sulfate, CuSO4 x H20. Prediction When the...

Can someone tell me what this chemical structure is? [PLAIN]ftp://24.58.188.197/d:/download/chemicalstructure.gif[/URL]

I'm interested in trying to find this out because I'm wondering if i could artificially make it from school materials...also i want to do a presentation on it tommorow, if i can't find the relevant information I'm going to have to do my presentation on ionisation energy, which is easy, and which...

If aluminum has a positive 3 charge and chlorine has a negative 1 charge, then the formula becomes AlCl3, because the negative three in chlorine would balance out the positive 3 in aluminum right? So, what about this? Silion has a positive 4 charge. and neon has a neutral charge. What would the...

What is the chemical formula for oleic acid?

2 ml of 15M Nitric acid was added to copper bromide(CuBr) and gently heated until a black substance was formed, copper oxide(CuO), and was completely dry. There was .93g of CuO formed in the reaction. The CuO was formed from the decomposition of the copper nitrate produced by the reaction of...

Can anyone tell me what the chemical formula for Chlorothyl is. I would appreciate any help, and I will give full credit to the person who answers in my bibliography. Thank you!

I don't get this: "Its empirical formula is C 10 H 17 N 3 S • 2 HCl • H 2 O" What is with those dots? And the middle part has a number before a letter...