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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.Apr 3, 2017 · 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 ... Write down your question. Write your question in the Body box. Your question should be clear even without the title. (Especially, do not write your whole question in the title and then put "title says it all" in the body.) Write your question out in full; do not post a picture of the question or your handwritten notes.Tools get rusty. It's one of the things they do best. But they don't have to stay rusty. The DIY experts at Stack Exchange offer a few solutions to keep your tools gleaming clean. Tools get rusty. It's one of the things they do best. But th...From our friends teaching organic chemistry at UCLA: R group: An abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule. Sometimes used more loosely, to include other elements such as halogens, oxygen, or nitrogen. R is an abbreviation for radical, when the term radical applied to a …Chemistry Stack Exchange uses MathJax to render LaTeX syntax. You can use single dollar signs to delimit inline equations, and double dollars for blocks: The equation $ 3x^2 + 5x +1 = 0 $ has the solutions $$ x_{1,2} = \frac{-5 \pm \sqrt{5^2-12}}{6} $$ Learn more: MathJax help. Compare, while providing an explanation, the thermal and electrical conductivity of graphite to that of diamond. Provided answer: Graphite conducts electricity (only across a layer) where as diamond does not. Diamond is better at transferring heat than graphite. Explanation: Diamond is covalent network solid of carbon atoms which are linked to ...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 …Amidine synthesis from nitrile and dimethylamine using n-Buli as a base. organic-chemistry. synthesis. amines. organometallic-compounds. nitriles. Mithoron. 4,582. modified Oct 13 at 12:18.1. Today I stumbled across a website which defined the titration of weak acid and strong base as the following: "The titration of a weak acid with a strong base involves the direct transfer of protons from the weak acid to the hydoxide ion. The reaction of the weak acid, acetic acid, with a strong base, NaOH, can be seen below.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 …Newest 'chemical-engineering' Questions - Engineering Stack Exchange. Questions tagged [chemical-engineering] Ask Question. Use this tag for questions within …Newest 'chemistry' Questions - Worldbuilding Stack Exchange. Questions tagged [chemistry] Ask Question. For questions that have to do with chemistry, chemical …2 Answers. Carbon Dioxide (CO 2) readily dissolve in water and form Carbonic Acid (i.e H2CO3 (aq) ) This is the formation of bonds. Then Carbonic Acid (i.e H 2 CO 3 (aq) ) dissociate in water as follows. So water gets H + ions, so that cause water acidic. The following shows dissociation of Carbonic Acid (i.e H 2 CO 3 (aq) ) more clearly.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.1 Answer. In general, we can describe a quasi aromatic compound as a compound, which is ionic in nature with a counter ion, and the π π electrons in such compounds follow Huckel's rule ( 4n + 2 4 n + 2 ). In other words, quasi aromatic compounds are those in which the charges present on the molecule are a part of aromaticity of the compound.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.May 28, 2015 · Today this reversible lithium-halogen exchange reaction can be formulated as, RLi +R′X↽−−⇀K R′Li +RX. R L i + R ′ X ↽ − − ⇀ K R ′ L i + R X. As an equilibrium process, we know that the more stable lithium species is preferred. Interestingly when R′ R ′ = aryl (particularly bromides and iodides) this is best written as, Apr 3, 2017 · 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 ... 1. Task: Explain the reaction mechanism of 1,4-Dioxane in terms of how you get peroxides. Start here with the autoxidation with one radical X. My explanation: in the first step 1,4 Dioxan reacts with Dioxygen, so one gets an initiatorradical and and HOO* (* symbolises here a free electron, a radical). In the second step the initiatorradical ...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.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.To write chemistry formulas, what extension do you recommend? I downloaded it from Miktex that have a lot. Thanks. 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, ...In a comment on the question I previously asked in Chemistry Stack Exchange, I was told that these other determinants have just different occupied orbitals. But then they are excited states and should already be included in the normal multi-configurational ansatz (CISD for example).CH3 radical is Sp2 hybridised carrying the lone electron in a pure p orbital. This is so because Sp2 hybridised orbitals are lower in energy than Sp3 hybrid orbitals (The more the S character the lesser is …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.). 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.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 ...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.Newest 'chemical-engineering' Questions - Engineering Stack Exchange. Questions tagged [chemical-engineering] Ask Question. Use this tag for questions within …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.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”). 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.The expansion upon freezing comes from the fact that water crystallizes into an open hexagonal form. This hexagonal lattice contains more space than the liquid state. Share. Cite. Improve this answer. Follow. answered May 13, 2015 at …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.Aldehydes contain the carbonyl group bonded to at least one hydrogen atom. Ketones contain the carbonyl group bonded to two carbon atoms. Aldehydes and ketones are organic compounds which incorporate a carbonyl functional group, C=O. The carbon atom of this group has two remaining bonds that may be occupied by hydrogen, alkyl or …Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for ... which provides arrows for chemical reactions, but it seems a little outdated (2001). For more LaTeX packages about chemistry see the list on CTAN. Share. Improve this answer. Follow edited Oct 27 , …Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, ... $\begingroup$ As an undergraduate chemist who wanted to learn more about QM, Griffiths was the perfect choice as well. Dirac was difficult to read, would not recommend as introductory textbook. ...19. In chemistry ask "why" only after you ask "if". Given a sufficiently strong superacidic medium, H X 3 O X + can be protonated to H X 4 O X 2 +. Evidence for this reaction, by studying isotopic exchange in a H F + S b F X 5 + S O X 2 solvent, is given here [1]. H X 4 O X 2 + is, of course, a powerful protic acid, and it would be leveled to ...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.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, ... $\begingroup$ As an undergraduate chemist who wanted to learn more about QM, Griffiths was the perfect choice as well. Dirac was difficult to read, would not recommend as introductory textbook. ...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...where δV = M(1/dl − 1/ds) δ V = M ( 1 / d l − 1 / d s) where M M is the molecular weight and d d the densities of liquid and solid. T1 T 1 and P1 P 1 are temperature and pressure at the triple point. Thus you have to iterate T1 T 1 and P1 P 1 by fitting (say by least squares) to the calculated curves to whatever data you have to find the ...The stacks of membranous sacs found in some chloroplasts are called grana. These stacks are made up of thylakoids, which are tiny hollow discs where photosynthesis actually takes place. Grana are joined together by bridging thylakoids, whic...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.Feb 20, 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. where δV = M(1/dl − 1/ds) δ V = M ( 1 / d l − 1 / d s) where M M is the molecular weight and d d the densities of liquid and solid. T1 T 1 and P1 P 1 are temperature and pressure at the triple point. Thus you have to iterate T1 T 1 and P1 P 1 by fitting (say by least squares) to the calculated curves to whatever data you have to find the ...Amidine synthesis from nitrile and dimethylamine using n-Buli as a base. organic-chemistry. synthesis. amines. organometallic-compounds. nitriles. Mithoron. 4,582. modified Oct 13 at 12:18.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 ...When explained properly, resonance is a consequence of our unability to draw adequate depictions of what the bonding situation in the molecule truly looks like. For example, take a benzene ring. We can only draw single and double bonds. The structures should be identical whether the double bonds are in 1,3,5 or 2,4,6 positions.Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, ... This site is for discussion about Chemistry Stack Exchange. You must have an account there to participate. Help. Visit chat. Linked. 14. Community Promotion Ads - 2017. 11.Then we discover a report that Mg (OH) 2 can be considered to be a weak base (Ref 1), so we would expect a pH somewhat below 7.00, and the answer would be "0.1M MgCl 2 is acidic." (But not very acidic.) An elegant way of describing the situation is that Mg (OH) 2 is a strong electrolyte but a weak base (Ref 2 and 3).That is, for core electrons in gold, the electrons are traveling at a significant fraction of the speed of light ( e.g., ~58% for Au 1s electrons). This contracts the Bohr radius of the 1s electrons by ~22%. Source: Wikipedia. This also contracts the size of other orbitals, including the 6s. The absorption you see is a 5d → 6s transition.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.Jul 13, 2018 · 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. The vapour pressure of water at 80º C is 355 torr. A 100 ml vessel contained water saturated oxygen at 80º C, the total gas pressure being 760 torr. The contents of the vessel were pumped into a 50.0 ml, vessel at the same temperature. What were the partial pressures of oxygen and of water vapour, what was the total pressure in the final ...Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, ... 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.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 Feb 10, 2014 · 5. Hyperconjugation is the inter 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 … The expansion upon freezing comes from the fact that water Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. ... By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. ... By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Thanks for contributing an answer to Chemistry St...

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