What is the conjugate acid of HONH2? Determine whether aqueous solutions of the following salts are acidic, basic, or neutral: (a) KBr (b) NaHCO3 (c) NH4Cl (d) Na2HPO4 (e) NH4F Also, how would I know what the products are for these reactions. Base are the compounds that accept protons. It is a very weak, A:HCN reacts with NaOH as follows: B. strongly acidic. What is the conjugate base of H2NNH3+? Then, place the coconut pieces into a blender or food processor and blend until smooth. Question = Is if4+polar or nonpolar ? How to tell which packages are held back due to phased updates. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. NaCl,KBr solutions are neutral, NaCN, NaNO 2 and KF solutions are basic and NH 4NO 3 solution is acidic. Q:Which of the following has the highest acidity: pH 1, pH 5, or pH 9? Is calcium oxide an ionic or covalent bond . Q:In a 0.35Msolution, a weak acid is 2.8% dissociated. (a) SrCl2 (b) AlBr3 (c) CH3NH3NO3 (d) NaCHO2 (e) NH4F Determine if the solution formed by each salt is acidic, basic, or neutral. HA(aq)+. @andselisk: Well, thanks, I guess. RbOC1, KI, Ba(ClO4),, and NH4NO3. This is known as the pH scale and is the range of values from 0 to 14 that describes the acidity or basicity of a solution. (b) What is the ratio of [OH-] in solutions R and Z and solutions R and Q? Which of the following is/are true regarding a 0.1 M solution of Ba(OH)2? 22. Posted 11 months ago Recent Questions in Software Engineering Q: -Phenol red indicator solution Because this reaction produces OH-, the resulting solution will be basic and cause a pH>7. If the solution is acidic, the strip will turn red or pink. Question = Is C2Cl2polar or nonpolar ? Please consider using proper formatting tools (. Add comment. If it turns blue, the salt is basic. When is a salt solution basic or acidic? If you want to know whether a salt is acidic or basic, there are a few simple tests you can perform. (a) AlCl3 acts as Lewis acid. First week only $4.99! If an acid completely. (a) Al(NO3)3 - acidic. Most questions answered within 4 hours. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. [4] This structure is very similar to ice, and ammonium fluoride is the only substance which can form mixed crystals with water.[5]. Basic b. Alkaline c. Both d. Neither. acidic. Let's try this: I corrected the answer a bit, and once you have some spare time, feel free to review the edits, maybe also by (re)visiting. NHs is a conjugate of a weak base a acid. The answers to these questions can be found in the attached files section at the bottom of the page. \[\dfrac{x^2}{0.2-x}=\dfrac{1*10^-14}{3.98 \times 10{-13}}\]. Although these hazards have been known for fifty years, it appears that use of NaH with these solvents is common, judging from the large number of published syntheses that use them together. They are also said to be a good source of energy, Read More Are Zone Bars Gluten Free?Continue, Your email address will not be published. Question = Is SiCl2F2polar or nonpolar ? Answer = SiCl2F2 is Polar What is polarand non-polar? Answer = if4+ isPolar What is polarand non-polar? Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Is the solution neutral, acidic, or basic? (a) SrCl2 (b) AlBr3 (c) CH3NH3NO3 (d) NaCHO2 (e) NH4F Question Why did Ukraine abstain from the UNHRC vote on China? What is the pH of a solution if it has a hydronium ion concentration of 2.5 1 0 10 M? Although these hazards have been known for fifty years, it appears that use of NaH with these solvents is common, judging from the large number of . - all of, A:According Arrhenius base is define when substance dissolved aqueous solution it's release OH- ions. KaHF=6.6*10^-4. In the sublimation, the salt decomposes to ammonia and hydrogen fluoride, and the two gases can recombine to give ammonium fluoride, i.e. - H2O -A glass or plastic container BCl3 Hence the protonation reaction taking place is Acidic Which of the following HF statements is true? Give an example of such an oxide. Acid-base indicators are solutions that change color in the presence of an acid or base. ) NaCN (ii) HF, A:NaCN + H2O ------> NaOH(aq) + HCN(aq) Chose if that solution is, A:Any salt or electrolyte is produced on combining any acid with alkali. Click hereto get an answer to your question NH4CN is a salt of weak acid HCN (Ka = 6.2 10^-10) and a weak base NH4OH(Kb = 1.8 10^-5) . Does the central atom lack an electron pair? Is SbCl5 ( Antimony pentachloride ) polar or nonpolar ? B (aq) + H2O (l) BH+ (aq). Acetic acid, HC2H3O2 hydrochloric acid (HCl) only Calculate the pH of a solution in which [H3O+]=9.5109M. Concept: Hydrolysis of Salts Is there an error in this question or solution? NH4Cl-acidic. Laboratory Safety Advocate for the Johns Hopkins University Homewood Campus. If the mixture turns pink or red, then it is basic. a. What can we say about their pH? Why do small African island nations perform better than African continental nations, considering democracy and human development? Upvote 0 Downvote. To think about a different example acetic acid is a weaker acid, $\text{pK}_\text{a} = 4.76$, so the acetate anion is a stronger base than the sulfate anion. A species having tendency to accept electron pair donated by other. Why is that? Step 1: NaNO2. Will the following oxides give acidic, basic, or neutral solutions when dissolved in water? NH4 Ka 5.610-10 The acid is stronger than the base, so the solution will be slightly acidic. It is made from sugar, corn syrup, and flavorings. strongest to weakest, at 25 C. (K(NH3) = 1.76 x 10-5, Ka (HF) = 6.8 x 10-4) Drag the appropriate items to their respective bins. NaClO which comes from a strong base (NaOH) and a weak acid (HClO). Our patient has a pH of 7.35. 5. Q:How is the magnitude of Ka related to acid strength? Same when it asks for lowest pH. See https://cen.acs.org/safety/lab-safety/Chemists-continue-forget-safety-concerns-about-sodium-hydride/97/web/2019/08 for more detail. Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Asking for help, clarification, or responding to other answers. Calculate the percent ionization of a .085 M solution of nitrous acid (weak), with a pH of 3.71. It is also used for preserving wood, as a mothproofing agent, in printing and dyeing textiles, and as an antiseptic in breweries. Christopher Wu (UCD), Christian Dowell (UCD), Nicole Hooper (UCD). Experts are tested by Chegg as specialists in their subject area. KCN Kardea Brown husband is a lucky man! If it remains yellow, then it is acidic. [6], Except where otherwise noted, data are given for materials in their, "Fluoride Toxicity - an overview | ScienceDirect Topics", https://en.wikipedia.org/w/index.php?title=Ammonium_fluoride&oldid=1096316729, slightly soluble in alcohol, insoluble in liquid ammonia, This page was last edited on 3 July 2022, at 18:03. Q:How is the magnitude of Ka related to acid strength ? To test with an indicator solution, add a few drops of indicator to the salt solution and observe the color change. A:An acid dissociation constant, Ka is the equilibrium constant for a chemical reaction, basically the, Q:Show, using equations for each, how according to the Bronsted-Lowry theory, the hydrogen sulfate, A:Given, One possible way to remove the sulfur dioxide is to pass the combustion gases into a tower packed with calcium oxide, CaO. The approximate $\mathrm{pH}$ can be calculated from the ionization constant of $\ce{HF}$ and the concentrations of $\ce{NH4F}$ and $\ce{HF}.$. pH is basic (>7), LiNO3 which comes from a strong base (LiOH) and a strong acid (HNO3). Q:Which of the following is a feature of a Lewis acid? Science Chemistry Determine if the solution formed by each salt is acidic, basic, or neutral. [OH-] =? To complete the other steps, follow the same manner of this calculation. Answer: B2 2-is a Diamagnetic What is Paramagnetic and Diamagnetic ? Is the. How does the strength of a conjugate base depend on these factors? Explain with equations as in the examples on previous picture, Answer = C2Cl2 is Polar What is polarand non-polar? rev2023.3.3.43278. A:Lewis acid: Your question is solved by a Subject Matter Expert. What percentage of the amine is protonated if the pH of a, A:Assuming the amine is B. The solution containing a salt of strong acid and weak base is acidic. (c) Classify each solution as acidic, basic, or neutral. First, a basic salt will typically be colorless or white in appearance. One way is to use litmus paper. From strong bases: Group 1 and Group 2, but not Be2+. the reaction is reversible: This substance is commonly called "commercial ammonium fluoride". + 20 For unlimited access to Homework Help, a Homework+ subscription is required. Small Laser Controlled Area Improves Lab Utility and Reduces Costs. NH4F is a salt of weak acid HF (Ka = 7.2 104) and weak base NH4OH (Kb = 1.8 105), the solution of NH4F will be slightly acidic. If it turns blue, the salt is basic. \(OCl^-_{(aq)} + H_2O_{(l)} \rightleftharpoons HOCl_{(aq)} + OH^-_{(aq)}\). It is fairly stable: mp $\pu{126 C},$ bp $\pu{240 C}$ (with decomposition). Arrhenius theory https://en.wikipedia.org/wiki/Base_(chemistry), https://en.wikipedia.org/wiki/Salt_(chemistry), https://en.wikipedia.org/wiki/Neutralization_(chemistry). However, NH4+ will lose an electron and act as an acid (NH4+ is the conjugate acid of NH3) by the following reaction: \[NH^+_{4(aq)} + H_2O_{(l)} \rightleftharpoons NH_{3(aq)} + H_3O^+_{(aq)}\]. Acidic b. If the solid ammonium fluoride (NH4F) is dissolved in pure water, will the resulting solution be acidic, basic, or neutral? a) IP = k sp b) IP > k sp c) IP < k sp d) IP << k sp v) NH4F is a salt of weak acid HF ( ka = 7.2 x 10-4) and weak base NH4OH (Kb = 1.8 x 10-5), the solution of NH4F will be ER. (iii) Ethyl alcohol For each salt, indicate whether the solution is acidic, basic, or neutral. I am a Ph.D. chemical engineer and Certified Safety Professional with experience in industrial research, nonprofit management, and chemical safety consulting. The word "neutral" is sometimes added to "ammonium fluoride" to represent the neutral salt[NH4]F vs. the "acid salt" (NH4HF2). The reactants are composed of the salt and the water and the products side is composed of the conjugate base (from the acid of the reaction side) or the conjugate acid (from the base of the reaction side). neutral. KI-neutral. To learn more, see our tips on writing great answers. On passing hydrogen fluoride gas (in excess) through the salt, ammonium fluoride absorbs the gas to form the addition compound ammonium bifluoride. HC7H5O2. 2005 - 2023 Wyzant, Inc, a division of IXL Learning - All Rights Reserved. Second, you can use a universal indicator to test the pH of the salt solution. If pH = 7, then the solution is neutral. The easiest way to tell is to look at each salt and determine how it was made, i.e. The salt produced from neutralization involving this acid-base pair will be a strong acid-strong base salt. Which of the following can act as a Lewis acid? If the salt turns the litmus paper blue, it is a base. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. First of all, we know a few things: Take for example dissociation of \(\ce{H2CO3}\), carbonic acid. Given, Kb for NO2- is 1.00 x 10^-14 / 4.5 x 10^-4 = 2.2 x 10^-11. NH4F-acidic. To tell if NH4I (Ammonium iodide) forms an acidic, basic (alkaline), or neutral solution we can use these three simple rules along with the neutralization reaction that formed NH4I .First we need to figure out the acid and base that were neutralized to form Ammonium iodide. (b) When it, A:(a) A:Acid-base concept can be explained by various theories :- A:pH is negative logarithm of hydronium ion. It's still just a salt. You're asking about pretty much the same thing as earlier. From strong acids: Cl-, Br-, I-, NO3-, ClO4-. Hickory is a strong, durable wood that, Read More Is Hickory Good for Cutting Boards?Continue, The answer to this question is a resounding yes! Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The ionization, Q:Hygrogen cyanide gas (HCN), a power respiratotoxic, inhibitor, is highly toxic. Looking for Ron Prestridge online? Read More Who is Kardea Brown Husband?Continue, Hickory is a very popular wood for cutting boards because it is extremely hard and durable. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. Kardea is a incredible woman who always puts her family first. NH4F + H2O ------>. NH4 Ka 5.6x10-10 The Acid Is Stronger Than The. $\pu{0.1 M});$ you get a $\mathrm{pH}\approx 1$. Bronsted-Lowry theory, Q:An aqueous solution of window cleaner has [H3O+] = 1.8x10-10 M at 25oC. [H3O+] = 8.87109M Such a salt gives an acidic solution upon hydrolysis (guideline 2). Any combination of these anions and cations will produce neutral solutions. 1. Ammonium fluoride | NH4F or FH4N | CID 25516 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities . This is known as a hydrolysis reaction. H2NNH3NO3 is acidic, basic or neutral? a. 0 0 Find All solutions for this book Chemistry Part-I NCERT Write reactions to justify your answers. Cotton candy is a type of confectionery that is made from sugar. A:To find: It is itself a weak acid, with a K a = 1.3 x 10-2. Minimising the environmental effects of my dyson brain. If the paper turns red, the salt is acidic. (a) Calculate the pH in solutions R, Q, and Z. pH is basic (>7). Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? The water, A:a) Since the acid which will dissociate more will be more stronger acid Upper Saddle River, NJ: Pearson Prentice Hall, 2007. a). Determine whether solutions of the following salts are acidic, basic, or neutralat 25oC:. [H+]=7.22106M c. [H+]=8.05107Md. a) KCI (Hint : In each case, draw the Lewis electron dot structure of the molecule or ion. Answer = IF4- isNonpolar What is polarand non-polar? Rebecca Tefera 2:45pm An aqueous solution of NH4F is acidic. Answer = SCl6 is Polar What is polarand non-polar? Salt has a pH of around 5.5, which means it is slightly acidic. HF dissociates equally well in a solution of KCl and in pure water. Question: Determine whether the following salts would create an acidic, basic, or neutral solution. The equation for NH4I is:HI + NH3 = NH4IIt is also useful to have memorized the common strong acids and bases to determine whether NH4I acts as an acid or base in water (or if it forms a neutral solution).Strong acids: HCl, H2SO4, HNO3, HBr, HI, HClO4Weak acids: HF, CH3COOH, H2CO3, H3PO4, HNO2, H2SO3Strong Bases: LiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, Ba(OH)2Weak Bases: NH3, NH4OHNote that we are talking about whether NH4I is an acid, base, or neutral when dissolved in water.- Salts of strong bases and strong acids: pH will remain neutral at 7.- Salts of weak bases and strong acids: pH less than 7 (acidic).- Salts from strong bases and weak acids: pH greater than 7 (alkaline).Based on these rules, the solution of NH4I dissolved in water is acidic.For polyprotic acids (e.g. 2003-2023 Chegg Inc. All rights reserved. Yes, they're bigger and "badder" then most other salts. KBr This means that when calculating the values for Kb of CO32-, the Kb of the first hydrolysis reaction will be \(K_{b1} = \dfrac{K_w}{K_{a2}}\) since it will go in the reverse order. Consider three solutions, R, Z, and Q. Solution R has[ H+ ]=0.0134. What type of solution forms when a metal oxide dissolves in water? Coal and other fossil fuels usually contain sulfur compounds that produce sulfur dioxide, SO2, when burned. Acidic b. How would you describe the pH of the gastric juice? HF is stronger acid than NH4+, is not it ? There are a few ways to test whether a salt is acidic or basic without pH. It's not clear to me what straightforward notation, according to my screen, gets retranslated to a different format. The same way that polyprotic acids lose H. Predict whether the pH of each of the following salts placed into water is acidic, basic, or neutral. A:To calculate, we would use the given information . The "parent" base is KOH (a strong base), and the "parent" acid is HCl (a strong acid). 9tth ed. [H+]=5.43109M. A:According to Lewis concept Ammonia is considered as base since it has lone pair of electrons with, Q:Identify which of the following salts will create an acidic solution and explain why. San Francisco: Pearson Education, 2007. Solution containing salt of strong acid and strong base is neural. c . If you want to know whether a salt solution is acidic or basic, you can use a simple test called the phenol red indicator test. If so, it can behave as a Lewis acid.) NHs Is A Conjugate Of A Weak Base A Acid. An Aqueous Solution Of NH4F Acidic, Basic, Or Neutral? Need help with something else? Why is the solution of ammonium bifluoride more acidic than aqueous ammonium fluoride? When it comes to identifying a basic salt, there are several key characteristics that you can look for. The pH scale goes from 0-14, with 7 being neutral, below 7 being acidic and above 7 being basic. Open in App . The reaction occurring is: It sublimes when heateda property common among ammonium salts. 1 mole of HCN reacts with 1 mole of NaOH, Q:Consider the following three compounds: propane, BBr3, and H2S. I get by looking at pH's you can tell, but given just the compound say LiNO2, LiNO3, KCN, NaClO, how do I know that KCN has the highest PH and is most basic? Is this based on the periodic table? HF + H2O ------> H+(aq) + F-(aq) How to analyze a acid and salt mixture using titrimetry? There are a few simple tests that can be performed to determine if a salt is acidic or basic, First, a small sample of the salt should be dissolved in water, Next, a pH strip should be dipped into the solution, If the pH strip changes color, it indicates that the salt is either acidic or basic, To further narrow down whether the salt is acidic or basic, another test can be conducted by adding a drop of phenolphthalein indicator to the solution, If the solution turns pink, it indicates that the salt is basic, If it remains clear, then the salt is acidic. Polar "In chemistry, polarity i An acid is a molecule or ion capable of donating a, In chemistry, bases are substances that, in aqueous solution, are slippery to the touch, taste astringent, change the color of. Salts that produce Basic solutions . Because, of course, all these salts come from an acid + a base. Now, NO3- won't attract an H+ because it is usually from a strong acid. How to calculate the pH of an acetic acid/ calcium acetate buffer? What is the final pH of a solution that has 0.123M of NH4F? If so, it can be a Lewis base. A one molar solution of NH4CN will be: Solve Study Textbooks Guides. Consider 0.25 M solutions of the following salts: NaCl, RbOCl, KI, Ba(ClO4)2, and NH4NO3. Bronsted Lowry Base In Inorganic Chemistry. The base is, Q:Consider the base hydroxylamine, NH2OH. Second, you can use a universal indicator to test the pH of the salt solution. "126$^0$ C" reads as "one hundred twenty-six to the power of zero coulombs". MathJax reference. Round your answer to 2 decimal, A:pH of the solution is the measure of Hydrogen ion concentration which determines the strength of, Q:When in contact with a natural indicator (dried eggplant peelings), what color should the following, A:Egg plant peel indicator contains anthocyanins. [H+]=4.01104Mb. Label equations as what are the acid, Q:An aqueous solution at 25 C has a pOH of 6.85, Calculate the pH. To do this test, you will need: HF}$. These salts' solutions also, Q:The pH of five unknown solutions, V, W, X, Y, and Z are 12, 4, 7, 9 and We reviewed their content and use your feedback to keep the quality high. Answer : NH4F ( AMMONIUM FLUORIDE ) is acid What is an acid, base, neutral ? What type of solution forms when a nonmetal oxide dissolves in water? For each salt, indicate whether the solution is acidic, basic, or neutral. Is Milk of Magnesia acidic, basic, or neutral? Na2CO3 Thanks for contributing an answer to Chemistry Stack Exchange! what is the concentration of H3O+ in this, Q:7. If so, how close was it? They have been married since June 2019 and have a daughter named Skylar. (a) What is theconjugate acid of hydroxylamine? The easiest way to tell is to look at each salt and determine how it was made, i.e. whether an aqueous solution of, A:Given salts are :- Question = Is SbCl5 ( Antimony pentachloride ) polar or nonpolar ? Ionic equilibri. The acid salt is usually used in preference to the neutral salt in the etching of glass and related silicates. "NH$_4$F.HF" has a dot that doesn't make sense and the formula breaks across lines incorrectly. (8 pts) a. HCl and CH3CO2H b. HNO3 and Ca(NO2)2 c. H2CO3 and . 6. Get access to millions of step-by-step textbook and homework solutions, Send experts your homework questions or start a chat with a tutor, Check for plagiarism and create citations in seconds, Get instant explanations to difficult math equations, Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. What sort of strategies would a medieval military use against a fantasy giant? Identify each as a Lewis acid, base,, A:Lewis acids are those substance which are having deficiency of electron in completing the octet and, Q:The following boxes represent aqueous solutions containinga weak acid, HA and its conjugate base,, A:pH=It is defined by saying that a measurement of the level of acid or alkali in a substance., Q:The ?b for an amine is 2.755105. This reaction produces a hydronium ion, making the solution acidic, lowering the pH below 7. Calculate theKaKaof, A:In this question, we have to find the pH of solution by the use of Henderson hessalbalch equation,, Q:The following diagrams represent aqueous solutions ofthree acids, HX, HY, and HZ. Acids are our substances with, Q:Assume each salt below is dissolved in water to make a 1M solution. For oxyacids, how does acid strength depend on a. the strength of the bond to the acidic hydrogen atom? The best answers are voted up and rise to the top, Not the answer you're looking for? For example, red cabbage juice can be used as an indicator because it changes color from purple to pink in the presence of an acid and changes color from purple to green in the presence of a base. In this section of chemistry, we discuss the pH values of salts based on several conditions. HONH3. (a) Calculate the[H3O+], pH, [OH]and. - CO32- See attached figures. Choose an expert and meet online. J.R. S. I found for NH4F to be acidic by finding Ka (NH3) being greater than Kb (HF). A, Q:Coleiro-ic Acid, HColeiro , is a new organic compound used to manufacture hypnotic drugs and some, Q:1. 23. Finally, you can use a pH meter to test the pH of the salt solution. 35,000 worksheets, games, and lesson plans, Spanish-English dictionary, translator, and learning, a Question Which pH has the highest acidity, Q:Rank the following in terms of basicity (base strength) from In chemistry, a salt is an ionic compound that can be formed by the neutralization reaction of an acid and a base. Aluminium has 6 electrons in its valence shell, and, Q:Predict ionization of the following drug as a function of pH. a) slightly acidic b) slightly basic c) strongly basic d) neutral vi) The theory which explain amphoteric nature of water is a) Arrhenius theory b) Lewis theory SC. Such salts do not hydrolyze. Another way to test for acids and bases is with indicators. General Chemistry: Principles and Modern Applications. \(NH^+ _{4(aq)} + H_2O {(l)} \rightleftharpoons NH_{3(aq)} + H_3O_{(aq)}\), \(PO^3-_{4(aq)} + H_2O_{(l)} \rightleftharpoons HPO^{2-}_{4(aq)} + OH^-_{(aq)}\). AlBr3 NH4F CH3NH3NO3 NaCHO2 acidic basic neutral. Luckily, since we're dealing with acids, the pH of a salt of polyprotic acid will always be greater than 7. To determine which is most basic among the three (LiNO2, KCN and NaClO) one must compare the Kb of the conjugate base and that will dictate the level of alkalinity. Relation between transaction data and transaction id, The difference between the phonemes /p/ and /b/ in Japanese, Batch split images vertically in half, sequentially numbering the output files, Replacing broken pins/legs on a DIP IC package. Can I tell police to wait and call a lawyer when served with a search warrant? K+ will not hydrolyze, but the CN- anion will attract an H+away from the water: \[CN^-_{(aq)} + H_2O_{(l)}\rightleftharpoons HCN_{(aq)} + OH^-_{(aq)}\]. Indicate whether the solutions in Parts A and B are acidic or basic. NH4I However, some common methods include using litmus paper or an indicator solution. 15K views 2 years ago To tell if NH4I (Ammonium iodide) forms an acidic, basic (alkaline), or neutral solution we can use these three simple rules along with the neutralization reaction. Rebecca Tefera 2:45pm An Aqueous Solution Of NH4F Is Acidic. chemistNATE 238K subscribers Subscribe 1.5K 212K views 10 years ago Acids and Bases How can you predict. Basic c. Neutral. View this solution and millions of others when you join today! { Aqueous_Solutions_Of_Salts : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.
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