Recent content by Mayhem

I see what you are asking. Understand that the problem you stated in the thread title is opposite of what actually meant to ask. When the measured yield is higher than the theoretical yield, it is either because the theoretical yield was incorrectly calculated, or because the isolated product...

Small thing. Percent yield = (actual yield / theoretical yield) * 100. Without the 100 factor, you just get a ratio, not a % expression.

Both AuCl3 and [AuCl4]- exist. Chemistry principles get funky when you get to the third row metals (where Au sits) so I can't comment on why exactly, but it would appear that [AuCl4]- is prepared under rather extreme chemical conditions (aqua regia), where an excess of Cl- and H+ are present...

Unless Ir is special for this, any option will change the bond properties of the CO ligand, even if the change is small. To convince me otherwise, I'd need to see IR spectra corresponding to option b, c and d as well as the parent IrCl(CO)(PPh3)2. Now it does specify a decrease in triple bond...

Energy storage is one of my areas of interest and indeed, energy density is a key parameter for storage viability. But reversibility, in the sense that you can 'recharge' your storage device is as important for general applications.

It is well known that a high nitrogen to carbon ratio in a molecule is a predictor of positive energetic properties. I can't find a common vendor that supplies the reagent in question, but I'm sure it's out there. Maybe on the Chinese chemical market. Also, PubChem is a terrible resource as...

This is the only published article I could find, and googling 1,2-dicyanohydrazine (or N,N') only returns a few relevant links, one of which being this exact thread. Certainly an obscure reagent. Anyway the hydrazine N-N is already reactive and a CN^{1-} group is electron withdrawing...

Please provide a reference to those articles.

Careful with describing a "reduction" in reactants. Say decrease/increase instead. Between reactants and products, the only thing that is conserved is mass and charge. Every other quantity is potentially subject to change.

I used a Linux distro for a long time and the only thing that limited my productivity was working around Windows only software, some of which was needed for my studies. Having used Windows exclusively for two years now, I really miss the ease of navigating in Linux. I feel like Windows is made...

Rule no. 1 chemistry: There are no unbound protons. Rule no. 2 of chemistry: THERE ARE NO UNBOUND PROTONS Rule no. 3 of chemistry: Charges are always balanced by an oppositely charged species. The phenomenon you are describing would not be described by conventional chemistry. You would...

Counter ion makes a huge difference. Most sulfates are soluble as chlorides, but a lot of sulfates aren't soluble as chlorides (just to use your example?. This will affect solubility in acid if there isn't another dissolution pathway, i.e. hydrogen gas formation.

The "security" in the MS Office package is perplexing. I am trying to open a .txt file I made myself, why are you giving me crap?

Excellent example of how making things more complicated don't make them better. Instead of reading group by group now I must follow an arrow? My daughter loved this episode of Dora the Explorer.

Another excellent example is vanadium in flow batteries.