Chemistry stack exchange

Chemistry Stack Exchange is a platform where you can ask and answer questions on various topics related to chemistry, such as reactions, equilibrium, thermodynamics, and more. You can also browse the questions by tags, votes, and views, or ask your own questions.

131. This FAQ explains and gives examples how to typeset chemical equations, quantities and units, and mathematical expressions on Chemistry Stack Exchange (rather than posting pictures, which you can't edit or search). Refer to the table of contents below to find topics you need to format questions and answers.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.Math Stack Exchange's default style uses a light-colored page background, so avoid using light colors for text. Stick to darker colors like maroon, green, blue, and purple, and remember also that 7–10% of men are color-blind and have difficulty distinguishing red and green. (Some people have difficulty distinguishing other colors too, …If you’re in the market for a new pickup truck, you may be wondering how the Ram 1500 stacks up against other trucks on the market. Specifically, you might be searching for “Ram 1500 for sale near me” to see what options are available in yo...131. This FAQ explains and gives examples how to typeset chemical equations, quantities and units, and mathematical expressions on Chemistry Stack Exchange (rather than posting pictures, which you can't edit or search). Refer to the table of contents below to find topics you need to format questions and answers. 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.Sep 14, 2015 · Software: This can be any software ranging from plugins for the browser over mobile apps up to standalone applications for the computer. Pure 2D or 3D visualization programs as well as quantum chemistry programs might not fit in this category, as they are not primarily focused on teaching chemistry. 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 ...

Aquí nos gustaría mostrarte una descripción, pero el sitio web que estás mirando no lo permite.Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, ... Back to Chemistry Stack Exchange Return to the main site Tour Start here for a quick overview of the site Help Center Detailed answers to ...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.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 ...If E° of a Half Cell is based on the chosen reference Electrode (Generally SHE) then how is the equation ΔG°= -nFE° be valid for a Half Cell. For example let us take the reaction: Zn (s) ---> Zn^2+ (aq) + 2e^- (aq) ;ΔG°, which we are considering as our half cell And now suppose, by taking the value of E° of SHE (Standard Hydrogen ...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 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.

Nov 11, 2021 · 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. 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 27, 2015 · The overlap is actually in making the boards and the electronics. What materials and what properties something has and why you would use it in a computer. Software and material science are fully decoupled in electronics. Chemist needs to know how what is a field-effect transistor and how to measure conductivity. 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. 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.

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Apr 2, 2019 · Yes , it is a scam . This has been discussed at National Association of Corrosion Engineers meetings for decades. The vendors have actually sold some to refineries; however they can never demonstrate good results in objective tests. The excuses the vendors find for the failures are a tribute to creative thinking. – blacksmith37. 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, ...Sep 23, 2014 · 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. 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”).

5. Hyperconjugation is the interaction between adjacent orbital (empty p p for cation, π π for alkene) with σ σ bond, while common conjugation is between adjacent orbital and π π bond. As one example, one reason why more alkyl substituted alkenes are more stable than less substituted ones is because more alkyl groups provide more ...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.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.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.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.Niobium is a chemical element with atomic number 41 and is represented with the symbol Nb in the Periodic Table. It is a soft, ductile transition metal which is resistant to corrosion due to the presence of an oxide layer on its surface. It is one of the most common elements found in the Earth’s Crust. It is often found in the pyrochlore mineral.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 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 ... PPCHTeX is ConTeXt's chemistry module but it can actually be used with LaTeX, too. I have never used it before and trying 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 equations.

131. This FAQ explains and gives examples how to typeset chemical equations, quantities and units, and mathematical expressions on Chemistry Stack Exchange (rather than …

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.E + S ↔ ES → E + P (with product inhibition) Note that the chemical equation above does not explicitly show the product P binding the enzyme to form an EP complex. An actual reaction diagram showing the inhibition of an enzyme by an inhibitor I and by the product P is shown in Figure 6.4.6 6.4. 6 below.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 ... PPCHTeX is ConTeXt's chemistry module but it can actually be used with LaTeX, too. I have never used it before and trying to ...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 …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. Sign up to join this community 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. Sign up to join this community 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 …

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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.The absorption (reduced reflectance) seen at lower wavelengths by silver and gold is caused by an electron transition (caused by the absorption of light) between their 4d → 5s 4 d → 5 s and 5d → 6s 5 d → 6 s orbitals respectively. Silver absorbs (reflects less) in the ultraviolet, no visible light is appreciably absorbed.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).Jun 7, 2016 · 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 ... 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. ... Even if you know no chemistry, by inspecting the diagrams you can see that by breaking the sugar into …The key point in carbohydrate numbering is to look for the carbon which is an aldehyde or a ketone (the carbonyl carbon). This will be the end of the monosaccharide which is numbered lowest. For aldoses, this carbon would be carbon 1. For ketoses, it's the lowest number that can be reached in the linear, ring-open form (e.g. for fructose, it's 2).1. I do not know any chemistry-for-physicists textbook, but Chemistry: The Central Science is a good textbook that gives a general picture of chemistry. I do not know what do you mean by " that takes advantage of thermodynamics, statistical mechanics, and quantum mechanics ". Share. Cite.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 ...Java has long been a popular programming language for various applications, and full stack development is no exception. Java’s versatility and compatibility are among its biggest strengths when it comes to full stack development. ….

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.Find the latest and most popular questions about chemistry as an academic discipline and programs. Browse topics such as admissions, grading, publications, funding, and more.5. Yes every reaction is an equilibrium. A complete reaction is a equilibrium with high equlibrium constant. If you write the expression for equilibrium constant, you will find that high equilibrium constant implies that the conc. of the products is very high, i.e. the reaction has reached completion. Share.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”).Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, ... computational-chemistry; Abdeljalil. 21; modified Oct 19 at 14:37. 2 votes. 1 answer. 143 views. Fast weighted vector inner product x*A*y with BLAS/LAPACK. lapack; blas; Thijs Steel.Bioinformatics Stack Exchange is a question and answer site for researchers, developers, students, teachers, and end users interested in bioinformatics. 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 ...Place 2.5 g 2.5 g 30-mesh powdered sample of arecoline nut in distillation flask. Add 5 mL 5 m L 0.3 N 0.3 N NaOH N a O H solution and wet sample uniformly. Place receiver containing 10 mL 10 m L 0.02 N 0.02 N HX2SOX4 H X 2 S O X 4 in ice bath, with stem of condenser dipping in acid. Connect apparatus and let steam bubble through material.Chemistry Meta 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. Sign …The covalent bond is the electrostatic interaction between two atoms in the same molecule. Covalent bonds are much stronger than hydrogen bonds: the O−H O − H has a strength of 467 kJ/mol, while the hydrogen bond is usually between 4 to 40 kJ/mol. Just want to point out that there is a subtlety to the word "water": Chemistry stack exchange, The chemistry is fairly simple: N a H C O X 3 84 g + H C l 36 g N a C l + H X 2 O + C O X 2 f i z z. You can make a dilute baking soda solution as well and add slowly with stirring. Just keep adding until it no longer fizzles, then test with pH paper. Repeat., 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., 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., 5. Yes every reaction is an equilibrium. A complete reaction is a equilibrium with high equlibrium constant. If you write the expression for equilibrium constant, you will find that high equilibrium constant implies that the conc. of the products is very high, i.e. the reaction has reached completion. Share., Newest 'chemistry' Questions - Worldbuilding Stack Exchange. Questions tagged [chemistry] Ask Question. For questions that have to do with chemistry, chemical …, Jul 2, 2017 · 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. , Here is the list some books which i fill it is good and detailed: IB Chemistry Course Book 2014 edition: Oxford IB Diploma Programme. General Chemistry (Dover Books on Chemistry) Comprehensive Chemistry by Dr. N.K. Verma, Prof. S.K. Khanna and Dr. B. Kapila., 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., E + S ↔ ES → E + P (with product inhibition) Note that the chemical equation above does not explicitly show the product P binding the enzyme to form an EP complex. An actual reaction diagram showing the inhibition of an enzyme by an inhibitor I and by the product P is shown in Figure 6.4.6 6.4. 6 below., Once in hand, you could oxidize benzaldehyde to benzoic acid. An alternate approach would be to 1) brominate benzene to form bromobenzene, 2) form the Grignard reagent with magnesium and 3) react it with carbon dioxide to produce benzoic acid. In either case, with benzoic acid in hand, you can procede as you've indicated, on to benzophenone., 11. Look for carbons with four different groups attached to identify potential chiral centers. Draw your molecule with wedges and dashes and then draw a mirror image of the molecule. If the molecule in the mirror image is the same molecule, it is achiral. If they are different molecules, then it is chiral. Here you're particularly interested in ..., 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 ..., 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 ... , An equivalent (symbol: officially equiv; unofficially but often Eq) is the amount of a substance that reacts with (or is equivalent to) an arbitrary amount of another substance in a given chemical reaction. The mass of an equivalent is called its equivalent weight. In a more formal definition, the equivalent is the amount of a substance needed ..., 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, ... $\begingroup$ 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. ..., 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. , 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, ... 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., 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. , Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, ... Back to Chemistry Stack Exchange Return to the main site Tour Start here for a quick overview of the site Help Center Detailed answers to ..., Jan 8, 2021 · 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 use of dots in inorganic chemistry. Let's take the example of copper sulfate penta-hydrate: $\ce{CuSO4. 5H2O}$. The dot here is used essentially as an expression of ignorance to indicate that, though the parts of the molecule separated by the dot are bonded to one another in some fashion, the exact structural details of that interaction are not fully …, Sep 2, 2016 · Dissolving of the ammonium chloride can also be thought as two separate processes, see equation (2 ′). NHX4Cl(s) [NHX4X + (g)] + [ClX − (g)] NHX4X + (aq) + ClX − (aq) Meaning that first we break up the ammonium chloride crystal structure and second we dissolve the bare ions. If we want to write that in single enthalpy terms, we can do ... , Chemistry Meta 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. Sign …, 4. Computational chemistry is a broad field, even more nowadays with increasing number of machine learning applications related to chemistry. As you have not specified what you are after I will suppose you are interested in quantum chemistry because it is arguably the main area of study in computational chemistry. I would …, 1. Isotopes that are theoretically believed to be unstable but have not been observed to decay are termed as observationally stable. Currently there are 162 theoretically unstable isotopes, 45 of which have been observed in detail with no sign of decay, the lightest in any case being X36X2362Ar X 36 X 2 2 36 A r. – Nilay Ghosh., Software: This can be any software ranging from plugins for the browser over mobile apps up to standalone applications for the computer. Pure 2D or 3D visualization programs as well as quantum chemistry programs might not fit in this category, as they are not primarily focused on teaching chemistry., Jun 7, 2015 · 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. , As a premium clothing brand, Peter Millar has made a name for itself in the world of luxury fashion. However, with so many competitors on the market, it can be difficult to know whether this brand is worth the investment., 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., 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, ... This site is for discussion about Chemistry Stack Exchange. You must have an account there to participate. Help. Visit chat. Linked. 14. 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