History has chosen "triphosphate" and "diphosphate" as the terms to use for adenosine-substituted phosphate anhydrides, icky though the term may be. Older literature will also use "diphosphate" to mean "bisphosphate". The name "fructose diphosphate was formerly in wide usage for what is now known as "fructose-1,6-bisphosphate", for example ...

2020年9月21日 · $\ce{NaH3P2O7}$ is an intermediate acid-salt formed during the neutralization of pyrophosphoric acid ($\ce{H4P2O7}$) which becomes unstable as pH rises and leads to formation of trisodium diphosphate, $\ce{Na3HP2O7}$:

2016年11月21日 · Here's a potential synthesis route for Farnesol (1) from the starting material Nerolidol (2). Farnesol is then phosphorylated into Farnesyl diphosphate. Nerolidol (2) is treated with anhydrous acetic acid under basic conditions to produce Farnesol (1). From The Total Synthesis of Natural Products edited by John ApSimon, page 201. Also ...

2015年5月9日 · $\begingroup$ Diphosphate, as in adenosine diphosphate (ADP) is the most common contrary example. "Diphosphate" is a side group composed of two esterified phosphates, $\mathrm{H_3P_2O_7—}$, whereas a bisphosphate compound such as fructose 1,6-bisphosphate bears two $\mathrm{H_2PO_4—}$ side groups, which may or may not be bound to the same atom.

I'm looking for an explanation of the bonding in the phosphate (PO43−) ion: (Image courtesy of Wikipedia) Phosphorus (15P) - being the fifteenth element - has fifteen electrons, five valence elec...

2019年4月15日 · The solubility of calcium salts is highly dependent on $\mathrm{pH}$.For example, let’s look at tricalcium phosphate, which presents the solubility equilibrium: $$\ce{Ca3(PO4)2(s) + H2O <=> 3Ca^2+(aq) + 2PO4^3-(aq)}$$ The solubility product constant for this equilibrium $(K_\mathrm{sp})$ is vastly varied from source to source.

What part in the strand contributes to the overall non neutral charge? DNA is not isolated in the body, so what keeps it stable while being charged? Why is it important for DNA to be charged?

2022年12月30日 · We have this exercise without solutions. From a 0.2 M $\ce{NaH2PO4}$ solution and a 0.2 M $\ce{Na2HPO4}$ solution, a buffer solution with pH = 6.8 is to be prepared.

2016年2月10日 · Both the prefixes bis-, tris-, tetrakis-etc. and the prefixes di-, tri-, tetra-etc. are used to describe how many times a certain single ligand attaches to a central metal — and this usage is no different here than in typical molecule nomenclature.

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