Chemistry stack exchange.

Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Visit Stack Exchange ... In a comment on the question I previously asked in Chemistry Stack Exchange, I was told that these other …Add line anywhere in topol.top and remove SOL from moleculetype section. #include "oplsaa.ff/spce.itp". About protein error- Check if your *.gro file include 1 protein molecule and 53832 water molecule in it. I am suspicious your *.gro file does not have protein molecule and filled with water only.Cross-posting is not considered the correct way to go on Stack Exchange. Or anywhere on the internet, to be a little more precise. The idea is that you want all answers to be in a single common spot, so the best answer out of different alternatives can be easily identified by votes.In today’s fast-paced digital world, businesses require highly skilled professionals who can handle complex software development projects. A full stack developer is a versatile professional who has expertise in both front-end and back-end d...I was looking for the pKa p K a of imidazole and found this pKa p K a table [1]: Compound Imidazolium 2-Aminoimidazolium 1-Methyl-2-aminoimidazolium 4,5-Dimethyl-2-aminoimidazolium pKa 7.38 8.46 8.65 9.21 Compound p K a Imidazolium 7.38 2-Aminoimidazolium 8.46 1-Methyl-2-aminoimidazolium 8.65 4,5-Dimethyl-2-aminoimidazolium 9.21.

Dec 24, 2014 · Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. It only takes a minute to sign up.

A quick way to draw the structure of a molecule is to look up the SMILES description of the molecule on pubchem or another cheminformatics site. To give an example, the SMILES of caffeine is CN1C=NC2=C1C (=O)N (C (=O)N2C)C. Then, you can load this into a chemistry drawing program such as Chemdraw (commercial) or MarvinJS ( online demo) or ...

Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Use MathJax to format equations.Effect of Temperature on pH of Water. The Kw K w is a function of temperature. It is 10−14 10 − 14 at 25 ∘C 25 ∘ C. When the temperature is 50 ∘C 50 ∘ C, the Kw K w can be calculated to be somewhere around 10−12 10 − 12 using Vant Hoff's equation, but this is so weird.Acidimetry is the specialized analytic use of acid-base titration to determine the concentration of a basic (synonymous to alkaline) substances using standard acid. Alkalimetry, is the same concept of specialized analytic acid-base titration, but for an acidic substance using standard base. – Poutnik. May 14 at 14:00.

Cross-posting is not considered the correct way to go on Stack Exchange. Or anywhere on the internet, to be a little more precise. The idea is that you want all answers to be in a single common spot, so the best answer out of different alternatives can be easily identified by votes.

Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Use MathJax to format equations.

Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Use MathJax to format equations.Oct 12, 2023 · Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Use MathJax to format equations. Aug 12, 2017 · I was looking for the pKa p K a of imidazole and found this pKa p K a table [1]: Compound Imidazolium 2-Aminoimidazolium 1-Methyl-2-aminoimidazolium 4,5-Dimethyl-2-aminoimidazolium pKa 7.38 8.46 8.65 9.21 Compound p K a Imidazolium 7.38 2-Aminoimidazolium 8.46 1-Methyl-2-aminoimidazolium 8.65 4,5-Dimethyl-2-aminoimidazolium 9.21. Q&A about the site for scientists, academics, teachers, and students in the field of chemistry Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Use MathJax to format equations.Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It only takes a minute to sign up. Sign up to join this community. Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top ...Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Visit Stack Exchange ... Otherwise it is too hard to tell you whether you should choose chemistry or physics.

Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Use MathJax to format equations.A “homework question” is any question whose value lies in helping you understand the method by which the question can be solved, rather than getting the answer itself. This includes not just questions from actual homework assignments, but also self-study problems, puzzles, etc. On the other hand, questions that come up in the course of ... Feb 25, 2023 · Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Use MathJax to format equations. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Visit Stack Exchange. ... For questions that have to do with chemistry, chemical reactions be they biological or artificial, or the industrial ...Newest 'chemical-engineering' Questions - Engineering Stack Exchange. Questions tagged [chemical-engineering] Ask Question. Use this tag for questions within …Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. It only takes a minute to sign up.Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, ... Chemistry studies very specific things: the phenomena in which atoms in molecules reorganize into different molecules (reactions) and the structure of these molecules as an organized collection ...

Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Use MathJax to format equations.

There is a lot of work associated to create such a database, or software. Organic Synthesis is one open-access reference for organic reactions, yet the normal output is a html / pdf of the reaction procedure, and not a *.sdf (or other chemically relevant *.xml-like) format. Inorganic Synthesis is a publication with similar intent as the former ...Welcome to Chemistry Stack Exchange! To get you the best answer, we provide this guidance for first-time askers. Before you post, search the site to make sure your question hasn’t been answered. Follow our policies when asking homework-like questions (questions about problem sets, exam items, etc.).Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, ... The branch of chemistry that deals with the study of redox reactions and how they can be applied to generate electricity (in electrochemical cells) and to carry out non-spontaneous reactions ...The negative hyperconjugation is a type of resonance effect where there is a donation of electron density from a filled π- or p-orbital to a neighboring σ*-orbital. It does not occur in your molecules. According to me, while comparing acidic strength, we should remove H X + from both the compounds, hence we get C F X 3 − O X − and C C l X ...Nov 28, 2019 · Now, coming to indium oxide, the formula of this compound as stated here is InX2OX3 I n X 2 O X 3, which bears a resemblance to the formula of AlX2OX3 A l X 2 O X 3 and GaX2OX3 G a X 2 O X 3 which we stated above. So, I would expect this oxide to atleast have some amphoteric properties. Dec 2, 2022 · The intersection between the wafer surface and the (122) plane is a line parallel to (1,1,1) x (1,2,2) = (0,-1,1). The angle between these two is 120 degrees. Because of the symmetry of the wafer, other solutions are 0 or -120 degrees. (You would get those by dialing in the (212) or the (221) plane.)

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Feb 25, 2014 · 39. The inert pair effect describes the preference of late p-block elements (elements of the 3rd to 6th main group, starting from the 4th period but getting really important for elements from the 6th period onward) to form ions whose oxidation state is 2 less than the group valency. So much for the phenomenological part.

Feb 11, 2017 · Collision theory postulates that particles only initiate a transformation when they have enough energy. This is called activation energy and denoted by Ea E a. Maxwell-Boltzmann distribution. dNv N = 4π( m 2πkbT)3/2 v2 exp(− mv2 2kbT)dv (2) (2) d N v N = 4 π ( m 2 π k b T) 3 / 2 v 2 exp ( − m v 2 2 k b T) d v. Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. It only takes a minute to sign up.A quick way to draw the structure of a molecule is to look up the SMILES description of the molecule on pubchem or another cheminformatics site. To give an example, the SMILES of caffeine is CN1C=NC2=C1C (=O)N (C (=O)N2C)C. Then, you can load this into a chemistry drawing program such as Chemdraw (commercial) or MarvinJS ( online demo) or ...Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Visit Stack Exchange ... I'm currently learning chemistry for the first time, and loving it. I have a reasonably good physics and maths background ...FeX2+ F e X 2 + ion containing metal surfaces, rust, drinking water, blood etc., but also copper and brass, give rise to a similar odor on contact with the skin. The human ability to detect this odor is probably a result of the evolutionarily developed but largely dormant ability to smell blood (“blood scent”).Chemistry Stack Exchange. Q&A for scientists, academics, teachers, and students in the field of chemistry. subscribe. preview. Computational Science Stack Exchange. Q&A for scientists using computers to solve scientific problems. subscribe. preview. Computer Science Stack Exchange.Just a guess- Lithium cation is smaller than the sodium cation, so the size of LiOH must be smaller than NaOH. Hence, the electrons will be pulled strongly, and it will be harder for them to leave. Hence, it would be a weaker base. Also, Lithium compounds are largely covalent, which could again be a possible reason. Mar 23, 2016 at 5:00.Jan 20, 2014 · FeX2+ F e X 2 + ion containing metal surfaces, rust, drinking water, blood etc., but also copper and brass, give rise to a similar odor on contact with the skin. The human ability to detect this odor is probably a result of the evolutionarily developed but largely dormant ability to smell blood (“blood scent”). Q&A for scientists, academics, teachers, and students in the field of chemistry Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

There are two reactivities of carbon dioxide that might form a problem in certain contexts. The first one is the (weak) acidity of carbonic acid, which could lead to reactions with bases. This is important especially in titrations when a specific concentration of base is desired which should remain stable over time.A quick way to draw the structure of a molecule is to look up the SMILES description of the molecule on pubchem or another cheminformatics site. To give an example, the SMILES of caffeine is CN1C=NC2=C1C (=O)N (C (=O)N2C)C. Then, you can load this into a chemistry drawing program such as Chemdraw (commercial) or MarvinJS ( online demo) or ...A closed system in chemistry refers to a type of a thermodynamic system in which mass is conserved inside the system but energy enters and leaves the system freely. When both energy and matter can be exchanged between the system and its sur...Whereas in the pyridinium ion - pyridine case. we can't draw good resonance structures that stabilize the positive charge in the pyridinium ion - this makes pyridinium ion more acidic. Both factors operate in the same direction and tend to make the pyridinium ion (pKa = 5.5 p K a = 5.5) more acidic than the iminium ion (pKa p K a ∼ ∼ 9). Share. Instagram:https://instagram. puppies barking youtubehow to measure earthquake magnitudetexas vs kansas volleyball scoredan and sam chime commercial Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to ... density-functional-theory vasp molecular-dynamics quantum-espresso computational-chemistry software quantum-chemistry python band-structure molecular-modeling more tags. Active 1 Bountied Hot … winged sumac edibledylan mcduffie georgia tech Need for AINR-based simulations (vs. laboratory experimentation) The Results section of this paper related to ab initio molecular dynamics states that "16 HX2O H X 2 O and 15 HCN H C N molecules were taken together, and the system was allowed to evolve for 750 ... computational-chemistry. ab-initio. Chemistry Stack Exchange. Q&A for scientists, academics, teachers, and students in the field of chemistry (104,769 total users) Oct 22, 2023 - Oct 22, 2023 ... These friendly reputation leagues are an informal way of tracking your reputation within the community on a particular Stack Exchange. Reputation is capped at 200 per day, ... football recruiting team rankings 2023 May 14, 2023 · Acidimetry is the specialized analytic use of acid-base titration to determine the concentration of a basic (synonymous to alkaline) substances using standard acid. Alkalimetry, is the same concept of specialized analytic acid-base titration, but for an acidic substance using standard base. – Poutnik. May 14 at 14:00. Chemistry Stack Exchange and a California Science Fair Project are used here. We basically see that the reaction for rusting is: 4 F e + 3 O 2 + 6 H 2 O → 4 F e ( O H) 3, with an overabundance of iron and water in a pipe, the limiting factor is oxygen, and how conductive the solution is. While oxygen is the limiting factor, concentration of ...39. The inert pair effect describes the preference of late p-block elements (elements of the 3rd to 6th main group, starting from the 4th period but getting really important for elements from the 6th period onward) to form ions whose oxidation state is 2 less than the group valency. So much for the phenomenological part.