Chemistry stack exchange.

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. I think these general rules work: If there is an spX3 s p X 3 hybridized carbon (or nitrogen), the molecular is NOT planar. 2) If there are no spX3 s p X 3 hybridized carbons (or nitrogens), and there is only one spX2 s p X 2 hybridized atom (carbon or nitrogen), it will be planar. 3) If there are no spX3 s p X 3 hybridized atoms, and there are ... Redox titrations : Oxidation of metallic Iron by Potassium Dichromate. 0.31 g of an alloy of Fe + Cu was dissolved in excess of dilute H X 2 S O X 4 and the solution was made upto 100 ml. 20 ml of this solution required 3 ml of N 10 K X 2 C r X 2 O X 7 solution ... inorganic-chemistry. physical-chemistry. redox.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.

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 …

Redox titrations : Oxidation of metallic Iron by Potassium Dichromate. 0.31 g of an alloy of Fe + Cu was dissolved in excess of dilute H X 2 S O X 4 and the solution was made upto 100 ml. 20 ml of this solution required 3 ml of N 10 K X 2 C r X 2 O X 7 solution ... inorganic-chemistry. physical-chemistry. redox.

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.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":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.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.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.

the quality and relevancy of your questions and answers. These friendly reputation leagues are an informal way of tracking your reputation within the community …

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.

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.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.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.Dec 15, 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. 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.Of these, 4 are mathematics books, 3 are chemistry books, 2 are history books, and 1 is a language book. Ms. Jones wants to arr... 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 …

Oct 1, 2017 · I have printed the model in HIPS and the support in PLA. I have put the 3D model in a ultrasonic cleaner in the solution with water and sodium hydroxide. (1 liter H2O + 200 grams NaOH) The PLA has dissolved after 3 hours with temperature 65° and 1 hour of ultrasonic sound. I attach a youtube link with a similar experiment. 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 …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 communityChemistry 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 ...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 ...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.

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.

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.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.Dec 15, 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. This web site shows how the molecules line up in the crystals. Yes, some ice is denser than water. If you put pressure on regular ice, and give it time to rearrange, the molecules will move into a new crystal lattice which results in the ice being more dense than water. In the first ice crystal, there are spaces between some of the molecules ...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.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.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...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.

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.

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.

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. Thanks for contributing an answer to Physics 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 25, 2017 · NotEvans. 17.1k 3 68 135. Add a comment. 4. Normal phase HPLC means the stationary phase is polar and the mobile phase is non-polar; reversed phase means the stationary phase is non-polar and the mobile phase is polar. See HPLC Separation Modes (from Waters, a manufacturer of chromatography equipment and supplies) for more insight. I teach high school chemistry, and it would be fantastic to have an app or web tool that students could use to draw 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 …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, ...Oct 17, 2016 · 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.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.stackexchange.com is ranked #0 in the Science and Education > Chemistry category and #0 Globally according to January 2023 data. Get the full …4. There are two ways to think of charge separation and both make resonance structures less stable: Moving electrons from a bond to a single atom to generate a cation/anion pair. For example: RX2C=CH−CH=CRX2 RX2C=CH−C+H−C−RX2 R X 2 C = C H − C H = C R X 2 R X 2 C = C H − C + H − C − R X 2.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.

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.chemistry.stackexchange.com is ranked #0 in the Science and Education > Chemistry category and #0 Globally according to January 2023 data. Get the full …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.Instagram:https://instagram. can you get ghoul race from race rerollkansas vs oklahoma state footballmatrifocalisrael warren 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.Feb 10, 2014 · 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 ... hcm oracle cloud login2014 wichita state basketball 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. cornell allen 247 If you’re looking into buying a dependable new or used truck, you’ve likely come across the 2020 Chevy Silverado in your search. The Silverado is consistently one of the most popular pickup trucks in the country, second only to Ford’s iconi...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. 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, ...