is c6h5nh3 an acid or base

Por equipe MyChat, 19 de abril de 2023

C6H5NH3+ + H2O > C6H5NH2 + H3O+. Other aniline dyes followed, such as fuchsin, safranin, and induline. What are the answers to studies weekly week 26 social studies? HS- . Explain. Is an aqueous solution with H+ = 2.45 x 10-8 M acidic, basic, or neutral? Re: 12.3 6th edition. fertilization to birth, whereas is the period of How would you identify the conjugate acid-base pairs in the equilibrium equation: A conjugate acid contains one more H atom and one more + charge than the base that formed it. At the time of mauveine's discovery, aniline was expensive. Explain why different parts of the Earth have different climates. The fourth column has the following: 0, x, x. Determine whether each of the following salts will form a solution that is acidic, basic, or pH-neutral. In a solution of a salt formed by the reaction of a weak acid and a weak base, to predict the pH, we must know both the Ka of the weak acid and the Kb of the weak base. The diamines are condensed with phosgene to give methylene diphenyl diisocyanate, a precursor to urethane polymers. In reactions where the acid is a hydrogen ion containing compound and the base is a hydroxide ion containing compound, water is also a product. fox hill country club membership cost. The strongest acids ionize 100%. Who were the models in Van Halen's finish what you started video? Pickling is a method used to preserve vegetables using a naturally produced acidic environment. Explain. How do you determine conjugate acids and bases? Explain. Check out my picture. Explain. Use the Bronsted-lowry model to label the acid-base pairs in the following equation for the ionization of water: H_2O(L) + H_2O(L) to H_3O^+(Aq) + OH^-(Aq). Explain. One example is the use of baking soda, or sodium bicarbonate in baking. Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Like most volatile amines, it has the odor of rotten fish. Why are weak acids and bases poor electrical conductors? Me molesta que mis padres no ______ (cuidar) su alimentacin.. 3. Water can act as an acid or base depending on the other reactant. Which conjugate base (#HCOO^-# or #CN^-#) is stronger? (a) The acid and base must encounter each other by a collision in order for the proton to transfer. When we neutralize a weak base with a strong acid, the product is a salt containing the conjugate acid of the weak base. The oxidation of aniline has been heavily investigated, and can result in reactions localized at nitrogen or more commonly results in the formation of new C-N bonds. It has one more H atom and . How can you identify conjugate acid and base pairs? Expert Answer. According to the equations below, what is the conjugate base of #HCO_3^-# ? {C6H5NH3+}\) is the stronger acid (a) (b) . What is the conjugate acid-base relationship of (H2PO4)- and (HPO4)-? Yes, you are correct. Enter the the Ksp expression forC2D3 in terms of the molar solubility x.? Is a solution with OH- = 1.0 x 10-15 M acidic, basic, or neutral? Is a solution with H+ = 9.52 x 10-2 M acidic, basic, or neutral? Citric acid (C6H8O7), a tricarboxylic acid found in citrus fruits. The reaction is: We are given two of three equilibrium concentrations and asked to find the missing concentration. Recall that the Bronsted-Lowry definition relies on the transfer and acceptance of a proton between an acid and a base. Solving this equation we get [CH3CO2H] = 1.1 105 M. What is the pH of a 0.083-M solution of CN? where can i find red bird vienna sausage? Correct answers: 3 question: Aniline hydrochloride, (C6H5NH3)Cl, is a weak acid. [29] The Bchamp reduction enabled the evolution of a massive dye industry in Germany. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. A weak acid plus a weak base can yield either an acidic, basic, or neutral solution. What is the conjugate base of oxalic acid, #HO(O=)C-C(=O)OH#? A solution has OH- = 1.3 x 10-2 M. Is this solution acidic, basic, or neutral? Titrations of Strong Acids and Bases. This is the most complex of the four types of reactions. Is a solution with H+ = 2.7 x 10-9 M acidic, basic, or neutral? These polymers exhibit rich redox and acid-base properties. InChI=1S/C6H7N/c7-6-4-2-1-3-5-6/h1-5H,7H2, Except where otherwise noted, data are given for materials in their, Electrophilic reactions at ortho- and para- positions. HBr. Is a solution with H3O+ = 0.000777 M acidic, basic, or neutral? The constants for the different stages of ionization are not known for many metal ions, so we cannot calculate the extent of their ionization. The conjugate acid of the strong base is a weaker acid than water and has no effect on the acidity of the resulting solution. These derivatives are of importance in the color industry. Now we have the ionization constant and the initial concentration of the weak acid, the information necessary to determine the equilibrium concentration of H3O+, and the pH: With these steps we find [H3O+] = 2.3 103 M and pH = 2.64, \(K_a\ce{(for\:NH4+)}=5.610^{10}\), [H3O+] = 7.5 106 M. \(\ce{C6H5NH3+}\) is the stronger acid (a) (b) . K a is the equilibrium constant for the dissociation reaction of a weak acid.A weak acid is one that only partially dissociates in water or an aqueous solution. Is a solution with H3O+ = 8.39 x 10-9 M acidic, basic, or neutral? Write by: . How do you find conjugate base concentration? Is a solution with OH- = 4.8 x 10-3 M acidic, basic, or neutral? An idealized equation is shown: The resulting diamine is the precursor to 4,4'-MDI and related diisocyanates. Sketch the region enclosed by y=27x and y=8x^4. As we noted previously, acids and bases react chemically with each other to form. Is a solution with H3O+ = 1.6 x 10-9 M acidic, basic, or neutral? Question = Is C2H6Opolar or nonpolar ? Explain. Is a solution with OH- = 1 x 10-9 M acidic, basic, or neutral? Who is Katy mixon body double eastbound and down season 1 finale? February 27, 2023 endeavor air pilot contract No Comments . For example, acetic acid, like most weak acids, ionizes, 5%. Explain. Formula. Thank you for your participation! Note that the base hydrolysis equation is a complete Brnsted-Lowry acid-base reaction, with water as the reactant acid. Is a solution with OH- = 2.7 x 10-7 M acidic, basic, or neutral? Calculate the pH a. before titration begins b. at E. P c. at the midpoint d. after 20 mL of NaOH e. after 30 mL of NaOH When we have heartburn, it feels better if we reduce the excess acid in the esophagus by taking an antacid. Is a solution with H+ = 2.0 x 10-3 M acidic, basic, or neutral? [7], Aniline was first isolated in 1826 by Otto Unverdorben by destructive distillation of indigo. What conjugate base(s) will deprotonate water? What is the conjugate acid of #HSO_4^-1#? [14] For comparison, in more strongly pyramidal methylamine, this value is ~125, while that of formamide has an angle of 180. It turns out that fish have volatile amines (bases) in their systems, which are neutralized by the acids to yield involatile ammonium salts. We calculated the new concentrations of the buffer acid and base after the neutralization reaction was run and then used the Henderson-Hasselbalch equation to evaluate the pH. Es ridculo que t ______ (tener) un resfriado en verano. 1.3 * 10 6. . What is the conjugate acid of this ion and what is its conjugate base? HCN + SO4^(2-) --> HSO4^(-) + CN^(-)? Kauna unahang parabula na inilimbag sa bhutan? In the parent aniline, the lone pair is approximately 12% s character, corresponding to sp7.3 hybridization. , Using Standard Molar Entropies), Gibbs Free Energy Concepts and Calculations, Environment, Fossil Fuels, Alternative Fuels, Biological Examples (*DNA Structural Transitions, etc. Acids "donate" #H^(+)# when they react. I-Iodide. Calculate the pH of a 5.4010-1 M aqueous solution of aniline hydrochloride (C6H5NH3Cl). HI is the stronger acid. Is a solution with OH- = 1.99 x 10-7 M acidic, basic, or neutral? A solution of a weak acid reacts with a solution of a strong base to form the conjugate base of the weak acid and the conjugate acid of the strong base. Explain. Would an aqueous solution with H+ = 1.6 x 10-8 M be acidic, basic, or neutral? Hydroiodic acid. The hydroxide ions generated in this equilibrium then go on to react with the hydronium ions from the stomach acid, so that : This reaction does not produce carbon dioxide, but magnesium-containing antacids can have a laxative effect. A force has the dependence Fx(x)=kx4F_x(x)=-k x^4Fx(x)=kx4 on the displacement xxx, where the constant k=20.3N/m4k=20.3 \mathrm{~N} / \mathrm{m}^4k=20.3N/m4. Why is the conjugate base of a strong acid weak? Does this mean addressing to a crowd? Strong acid. 96% Satisfaction rate 49547 Orders Deliver x. c6h5nh2 express your answer as a chemical formula. . Calculate the pH of a solution of 0.157 M pyridine. [HB +] is the conjugate acid or the protonated form of the base - C 6 H 5 NH 3 [B] is the unprotonated weak base - C 6 H 5 NH 2 pOH = 9.42 + log(0.5M/0.5M) = 9.42 + 0 pH = 14- pOH = 14 - 9.42 = 4.58 V. We knew that the strong acid would react completely with any base first. Which of the following compounds should have the strongest conjugate acid? Explain. Below are some classes of its reactions. Answer: B2 2-is a Diamagnetic What is Paramagnetic and Diamagnetic ? Explain. When we neutralize a weak acid with a strong base, we get a salt that contains the conjugate base of the weak acid. (a) KCN (b) CH_3COONH_4, How to classify solution either acidic, basic, or neutral? Explain. All other trademarks and copyrights are the property of their respective owners. Explain. Geplaatst op 3 juli 2022 door . Conjugate base is SO42, Acid + base conjugate base + conjugate acid. Which ion is the conjugate base of #H_3PO_4#? Explain. As you may know, hydrogen ions (H +) are found in acids and hydoxide ions (OH -) are found in bases.. Arrhenius in the 1890's made the following discovery:. What is the hydronium ion concentration of a 0.163 M solution of aniline hydrochloride at 25.0C given that the value of Kb for aniline is 4.3001010? a)NaNO2 b)HCl c)NaF d)Zn(H2O)3(OH)(NO3) Here's what I have so far: a) NaNO2 --> Na+ + . This conjugate base is usually a weak base. All bases have a conjugate acid. Here, the conjugate base of CHOH is CHO. There are a number of examples of acid-base chemistry in the culinary world. Is an aqueous solution with H+ = 1.08 x 10-6 M acidic, basic, or neutral? Top. 4) What is the strongest acid in the following set? Is a solution with H3O+ = 9.45 x 10-9 M acidic, basic, or neutral? When we ran this reaction, there was excess weak base in solution with . Water can act as an acid or base depending on the other reactant. When the conjugate acid and the conjugate base are of unequal strengths, the solution can be either acidic or basic, depending on the relative strengths of the two conjugates. Predict whether the solution of the following will be acidic, basic, or neutral, and explain the answer. The reaction of converting primary aromatic amine into diazonium salt is called diazotisation. Through these intermediates, the amine group can be converted to a hydroxyl (OH), nitrile (CN), or halide group (X, where X is a halogen) via Sandmeyer reactions. Is a solution with OH- = 7.3 x 10-8 M acidic, basic, or neutral? Some salts formed in neutralization reactions may make the product solutions slightly acidic or slightly basic. 5) Explain. This conjugate acid is a weak acid. A weak acid and a strong base yield a weakly basic solution. A triprotic acid, H 3 A has the following K a s: K a1 = 3.37 x 10-4 , . 3.2 * 10 9. However, in this case, the hydrated aluminum ion is a weak acid (Figure \(\PageIndex{2}\)) and donates a proton to a water molecule. Business Studies. What is the conjugate base? C6H5NH3+, conjugate base is a weak base, therefore it is potentially acidic NO2-, conjugate acid is a weak acid, therefore the salt is also potentially basic However, since the Ka > Kb, the solution must be acidic So it has both nature acidic on basic in its constituent, it will act as a neutral soul. Is C6H5NH2 an acid or a base? What is the conjugate acid of C6H5NH2 What formula do you use to calculate pH when given the molarity of an acid? The brine solution favors the growth of beneficial bacteria and suppresses the growth of harmful bacteria. To generate the mono-substituted product, a protection with acetyl chloride is required: The reaction to form 4-bromoaniline is to protect the amine with acetyl chloride, then hydrolyse back to reform aniline. Is a 0.1 M solution of NH3 acidic or basic? No creo que Susana _____ (seguir) sobre los consejos de su mdico. Consider of the following two acids and their ionization constants. Explain. Explain. In aniline, the CN bond length is 1.41 ,[8] compared to 1.47 for cyclohexylamine,[9] indicating partial -bonding between N and C.[10] The C(aryl)-NH2 distance in anilines is highly sensitive to substituent effects. Explain. In chemistry, bases are substances that, in aqueous solution, are slippery to the touch, taste astringent, change the color of indicators (e.g., turn red litmus paper blue), react with acids to form salts, promote certain chemical reactions (base catalysis), accept protons from any proton donor, and/or contain completely or partially . Explain. Aniline is an amine that is used to manufacture dyes. Explain how you know. Salvarsan's targeted microorganism, not yet recognized as a bacterium, was still thought to be a parasite, and medical bacteriologists, believing that bacteria were not susceptible to the chemotherapeutic approach, overlooked Alexander Fleming's report in 1928 on the effects of penicillin. Because an early source of the benzene from which they are derived was coal tar, aniline dyes are also called coal tar dyes. Exposure of rats to aniline can elicit a response that is toxic to the spleen, including a tumorigenic response. Organic bases are classified as bases because they act as proton acceptors and react with acids to form salts. 5 Answers There is no word like addressal. As with other polyprotic acids, the hydrated aluminum ion ionizes in stages, as shown by: \[\ce{Al(H2O)6^3+}(aq)+\ce{H2O}(l)\ce{H3O+}(aq)+\ce{Al(H2O)5(OH)^2+}(aq) \nonumber \], \[\ce{Al(H2O)5(OH)^2+}(aq)+\ce{H2O}(l)\ce{H3O+}(aq)+\ce{Al(H2O)4(OH)2+}(aq) \nonumber \], \[\ce{Al(H2O)4(OH)2+}(aq)+\ce{H2O}(l)\ce{H3O+}(aq)+\ce{Al(H2O)3(OH)3}(aq) \nonumber \]. Explain. It becomes the hydrogen sulfite ion (#HSO_4^-#) which is the conjugate base of sulfuric acid. Explain. A. Like phenols, aniline derivatives are highly susceptible to electrophilic substitution reactions. The reduction of nitrobenzene to aniline was also performed as part of reductions by Antoine Bchamp in 1854, using iron as the reductant (Bechamp reduction). The early manufacture of aniline resulted in increased incidents of bladder cancer, but these effects are now attributed to naphthylamines, not anilines. 6. Aniline reacts with strong acids to form the anilinium (or phenylammonium) ion (C6H5NH+3).[18]. Cooking is essentially synthetic chemistry that happens to be safe to eat. [32] Medications in high demand during World War II (193945), these first miracle drugs, chemotherapy of wide effectiveness, propelled the American pharmaceutics industry. My question is in part B. I understand C6H5NH3+ is the acid, but why is it's conjugate base C6H5NH2 and not C6H5NH2+2? In this reaction primary aromatic amine reacts with sodium nitrile and with 2 moles of HCl which is known as Ice cold mixture because the temperature use to be 0.5C and it forms benzene diazonium salt as major product and water and sodium chloride. [12] (For comparison, alkylamines generally have lone pairs in orbitals that are close to sp3.). NaHCO3 is a base. [21] As additives to rubber, aniline derivatives such as phenylenediamines and diphenylamine, are antioxidants. The pH of the solution 8.82. Explain. Occasionally the weak acid and the weak base will have the, Do the calculations and show that the hydronium ion concentration for a 0.233-, What is the hydronium ion concentration in a 0.100-, The \(\ce{NH4+}\) ion is acidic and the Cl, The \(\ce{NH4+}\) ion is listed as being acidic, and the F, \[K_\ce{a}=\ce{\dfrac{[H3O+][Al(H2O)5(OH)^2+]}{[Al(H2O)6^3+]}} \nonumber \]. Practice putting on gloves and have your instructor sign off when you have demonstrated the correct procedure. Alabugin I. V.; Manoharan, M.; Buck, M.; Clark, R. J. What are the 4 major sources of law in Zimbabwe? conjugate base of c2h5oh. 286 Math Specialists. [32] By the 1940s, over 500 related sulfa drugs were produced. Therefore, it's conjugate base wouldn't be C6H5NH2 2+, rather, it would be C6H5NH2 and would have a neutral charge. Thus, the hydration becomes important and we may use formulas that show the extent of hydration: \[\ce{Al(H2O)6^3+}(aq)+\ce{H2O}(l)\ce{H3O+}(aq)+\ce{Al(H2O)5(OH)^2+}(aq) \hspace{20px} K_\ce{a}=1.410^{5} \nonumber \]. This is most easily seen when they dissociate in water: #H_2SO_4# + #H_2O# => #HSO_4^-# + #H_3O^+#. What is the conjugate base of #"phosphoric acid"#, #H_3PO_4#? Is a solution with H+ = 1.0 x 10-3 M acidic, basic, or neutral? Acid strength is determined by the amount of that acid that actually ionizes. CH_3COONa. Is a solution with H+ = 7.8 x 10-3 M acidic, basic, or neutral? The problem says to write the dissociation equation for C6H5NH3+ including water as a reactant. What is the conjugate base for #"H"_2"S"#? [34], Some early American rockets, such as the Aerobee and WAC Corporal, used a mixture of aniline and furfuryl alcohol as a fuel, with nitric acid as an oxidizer. CH_3COONa, 18). Industrial aniline production involves two steps. J. Fritzsche (1840) "Ueber das Anilin, ein neues Zersetzungsproduct des Indigo", This page was last edited on 12 February 2023, at 16:29. It thus participates more rapidly in electrophilic aromatic substitution reactions. This distance is 1.34 in 2,4,6-trinitroaniline vs 1.44 in 3-methylaniline. Explain. For a given acid, what is its #"conjugate base"#? As we have seen in the section on chemical reactions, when an acid and base are mixed, they undergo a neutralization reaction. _____ 1. The accumulation of oxidative DNA damages in the spleen following exposure to aniline may increase mutagenic events that underlie tumorigenesis. New Questions About Fantasy Football Symbols Answered and Why You Must Read Every Word of This Report. Thus, I-will lose H+ ions easier than Cl-, although both are strong acids. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The strong bases are listed at the bottom right . [31] During the first decade of the 20th century, while trying to modify synthetic dyes to treat African sleeping sickness, Paul Ehrlich who had coined the term chemotherapy for his magic bullet approach to medicine failed and switched to modifying Bchamp's atoxyl, the first organic arsenical drug, and serendipitously obtained a treatment for syphilis salvarsan the first successful chemotherapy agent. The vegetable, such as a cucumber, is placed in a sealed jar submerged in a brine solution. When we neutralize a weak acid with a strong base, we get a salt that contains the conjugate base of the weak . Explain. ), *Thermodynamics and Kinetics of Organic Reactions, *Free Energy of Activation vs Activation Energy, *Names and Structures of Organic Molecules, *Constitutional and Geometric Isomers (cis, Z and trans, E), *Identifying Primary, Secondary, Tertiary, Quaternary Carbons, Hydrogens, Nitrogens, *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections), *Cyclohexanes (Chair, Boat, Geometric Isomers), Stereochemistry in Organic Compounds (Chirality, Stereoisomers, R/S, d/l, Fischer Projections). Is a solution with OH- = 1 x 10-6 M acidic, basic, or neutral? Is a solution with OH- = 1.6 x 10-3 M acidic, basic, or neutral? Because of this, the force of attraction between I-and the H+ ion is less than that between Cl-and H+. What are the conjugate acid and base of #H_2PO_4#? Solve for x and the equilibrium concentrations. [35], Aniline is toxic by inhalation of the vapour, ingestion, or percutaneous absorption. Acid generates H + ions in aqueous solutions. However, since the Ka > Kb, the solution must be acidic. Suppose a solution has (H3O+) = 1 x 10-13 M and (OH-) = 1 x 10-1 M. Is the solution acidic, basic, or neutral? [27], In 1856, while trying to synthesise quinine, von Hofmann's student William Henry Perkin discovered mauveine and went into industry producing the first commercial synthetic dye. Base. Is C6H5NH2 an acid or a base? Explain. Explain. NH4+ Weak acid. The pH of the sample in the flask is initially 7.00 (as expected for pure water), but it drops very rapidly as HCl is added. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Is SbCl5 ( Antimony pentachloride ) polar or nonpolar ? THANKS! Explain. Answer true or false to the following statements about the mechanism of acid-base reactions. B)Enter the the Ksp expression forC2D3 in terms of the molar solubility x. Jimmy aaja -M.I.A. How many grams of the chloride salt of the conjugate acid must be combined . All rights reserved. Is a solution with OH- = 8.2 x 10-9 M acidic, basic, or neutral? When base is added it reacts with the H + ions in the buffer, and this (temporarily) reduces the concentration of the H + ion. So OH is the conjugate base of HO. C 6 H 5 NH 2 + H 2 O <-> C 6 H 5 NH 3+ + OH -. Soon thereafter, applying a method reported in 1854 by Antoine Bchamp,[28] it was prepared "by the ton". Completa las oraciones con la forma correcta del presente de subjuntivo de los verbos entre parntesis.? Strong acid. Sometimes on Family Guy when there about to take someones heart out they say, calimar or maybe its spelled different. [7], In commerce, three brands of aniline are distinguished: aniline oil for blue, which is pure aniline; aniline oil for red, a mixture of equimolecular quantities of aniline and ortho- and para-toluidines; and aniline oil for safranine, which contains aniline and ortho-toluidine and is obtained from the distillate (chapps) of the fuchsine fusion. Likewise, it is also prone to oxidation: while freshly purified aniline is an almost colorless oil, exposure to air results in gradual darkening to yellow or red, due to the formation of strongly colored, oxidized impurities. Calculate the pH of a solution of 0.157 M pyridine.? Is an aqueous solution with H+ = 1.0 x 10-4 M acidic, basic, or neutral? ), Administrative Questions and Class Announcements, *Making Buffers & Calculating Buffer pH (Henderson-Hasselbalch Equation), *Biological Importance of Buffer Solutions, Equilibrium Constants & Calculating Concentrations, Non-Equilibrium Conditions & The Reaction Quotient, Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions, Reaction Enthalpies (e.g., Using Hesss Law, Bond Enthalpies, Standard Enthalpies of Formation), Heat Capacities, Calorimeters & Calorimetry Calculations, Thermodynamic Systems (Open, Closed, Isolated), Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric), Concepts & Calculations Using First Law of Thermodynamics, Concepts & Calculations Using Second Law of Thermodynamics, Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy, Entropy Changes Due to Changes in Volume and Temperature, Calculating Standard Reaction Entropies (e.g. Again a very nice app. The largest scale industrial reaction of aniline involves its alkylation with formaldehyde. What is the conjugated base in the following acid/base reaction: #CH_3COOH + H_2O rightleftharpoons H_3O^+ + CH_3COO^-#? Explain. All other acids are weak acids and ionize to a much lesser amount. When it reacts with an acid such as lemon juice, buttermilk, or sour cream in a batter, bubbles of carbon dioxide gas are formed from decomposition of the resulting carbonic acid, and the batter rises. Baking powder is a combination of sodium bicarbonate, and one or more acid salts that react when the two chemicals come in contact with water in the batter. {/eq} solution is acidic, basic, or neutral. What is the conjugate acid for H2O (water)? HNO2 + OH- -----> H2O + NO2- I know that HNO2 is a weak acid and NaOH is a strong base . The neutralization that occurs when aqueous solutions of acids and bases are combined results from the reaction of the hydronium and hydroxide ions to form water. (b) All collisions between acids and bases result in proton transfer. Why is my internet redirecting to gslbeacon.ligit.com and how do I STOP THIS. A solution is neutral when it contains equal concentrations of hydronium and hydroxide ions. How many 5 letter words can you make from Cat in the Hat? Name. Diaphragm _____ 3. Determine whether aqueous solutions of the following salts are acidic, basic, or neutral: Consider each of the ions separately in terms of its effect on the pH of the solution, as shown here: If we measure the pH of the solutions of a variety of metal ions we will find that these ions act as weak acids when in solution.

Puerto Rico Address Format Usps, John Saunders Westfield, Stubhub Corporate Office Email, Articles I