ANSWER AL la). Explain the following terms: (i) titration (ii) stoichiometry i ē velat cons denclant zn c (iii) precision (iv) accuracy (v) strong acid (vi) concentrated acid.
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Q: Calculate the solubility of CuBr (FM 143.45) in water expressed as (a) moles per liter and (b) grams…
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A: An oxidation-reduction indicator (also known as a redox indicator) is a device that changes colour…
Q: 4. Data in the following table were obtained for the titration of a 0.297-g sample of a solid,…
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Q: (ii) Phenolphthalein indicator represented by HIn, is a weak acid that dissociates in water as…
A: The question is based on the concept of acid and base. along with it, it talks about indicator and…
Q: calculate the noler solubility of Bo(Io,)2 ina solution Huat is 0,200 M in BacNO3)2 ?!
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Q: Can you show me how to do this
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A: Given information:Solid lead Iodate =0.885gInitial concentration = 1.35M
Q: What is the pH of a buffer solution containing 0.30 M HCOOH(aq) and 0.051 M NaHCOO(aq)? The acid…
A: The equilibrium constant for a reaction is expressed in terms of the ratio of the concentration of…
Q: ميز هذا السؤال Which of the following would keep the relative super saturation at minimum during…
A: Supersaturation means solubility of compound is more than that of equilibrium solubility . This is…
Q: ne Diubility of which salt could be decrease g by the additio O NaCI O PbCl2 О КОН LICI O KNO3
A: The solubility of which salt could be decreased by adding KCl :
Q: DURING THE DETERMINATION OF THE CORRECTION COEFFICIENT OF THE TITRATED 0.1 M (c theoretical)…
A: From the given data we have Theoretical concentration of the nitrite solution=0.1M Actual…
Q: What is the solubility of Zn3(PO4)2 if it's Ksp is 5.000e-36?
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Q: If you want to dissolve 0.225 grams of AgBr, what volume of 0.0138M Na2S2O3 in mililiters, should be…
A: Interpretation - To determine the volume of 0.0138M Na2S2O3 in milliliters when we dissolve 0.225…
Q: fore PbSO4 begins to precipitate. Assume
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Q: A Solution ining a mixture ol Imetal cations was treated witn dilute HCi and no precipitale med.…
A: Solution - According to the question - Given - Definitely Present: Hg+2, Pb+2, Sn+4, Sb+3, Cu+2 (ppt…
Q: 2) Preparation of buffer solutions: 0110 b) Prepare 1000 of pH 5.50 acetate buffer solution from…
A: Buffer solution: buffer solution is an aqueous solution consisting of a mixture of a weak acid(HA)…
Q: Qq) Estimate the pH of abuffer made by adding 1ogm NäHCo, to 250 ml of asotution which is Saturated…
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Q: (a) What concentration of Aso, is necessary to begin precipitation? (Neglect volume changes.) [Aso,]…
A: [Cu2+] = 0.0835 M [Ag+] = 0.000958 M…
Q: Colour of phenolphthalein indicator in basic solution is pink. a) b) F Select one: O True O False
A: Phenolphthalien is a colourless weak acid that is widely used as an indicator in titration…
Q: A buffer is Przpared by mi Xing 36.2mL of 0133 M NGOH cwith. 0.23) H of this butfer. 144.3 mL of M…
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Q: Suppose in an experiment to determine the amount of sodium hypochlorite in bleach, 0.0000157 mol…
A: Given that: Number of moles of KIO3 added = 0.0000157 mol Volume of Na2S2O3 solution at endpoint =…
Q: EXAMPLE Y ; Giren the reaction Pb*t + 21 » PbIz cs) moles of Pb zt is present in a 50.0 mL it it…
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Q: The colour of Phenolphthalein indicator in basic medium is O colourless O Blood red O Pink O Red
A: Phenolphthalein is an indicator used in acid - base titration. Phenolphthalein changes its colour…
Q: sólution, normally of unknown ncentration, is titrated with a KMNO4 solution of exact concentration…
A: In this experiement we will use a standard solution of potassium permanganate to determine the the…
Q: Three drops of the phenolphthalein chemical indicator should be added to the acidic analyte sample…
A: Phenolphthalein is used as an indicator in acid-base titration. In acidic medium phenolphthalein…
Q: Consider an indicator with the acid dissociation reaction below nd a K, = 1.0 x 10-4. %3D HIn (aq) +…
A: The question is based on the concept of indicator and chemical equilibrium. an indicator is a…
Q: Vhat is the solubility of La(IO,), in a 3 olution that contains 0.400 M La³+ ons? (Ksp of La(IO,),…
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Q: 4. A solution was prepared by dissolving 0.541 g of benzoic acid (HC,HSCOO) in 100 mL of water. The…
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Q: Titrant is usually in. O In buret. In a conical flask. O In beaker. O O O
A: Titration is a method to determine the concentration of an unknown solution by using the solution of…
Q: A 4.0520g sample of HCI, sp. Gr 11.18, required 44.15ml of 0.9035M of Sodium Hydroxide in titration,…
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Q: In a Mohr titration, silver chromate will be produced until essentially all of the halide has been…
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Q: ating the dissolv precipit CI,-2H,C
A: According to the question, the sample contains BaCl2.2H2O, KCl, and inert material. Weight of inert…
Q: Example sample of BaCl2 25ml, 40 ml of a standard solution Silver Nitrate 0.1M was added to it, the…
A: Balanced chemical equations: BaCl2 (aq) + 2AgNO3(aq) -----> Ba(NO3)2 (aq) + 2AgCl (s) So,…
Q: In a Li2CO3 solution, if it is not adequately filtered before titrations and solid remains, what…
A: The solubility product constant is the equilibrium constant where the solids get dissolved in water,…
Q: ACID-BASIC TITRATION IN NON-AQUATIC MEDIA IS USED TO QUANTIFY SUBSTANCES WHEN Choose one answer: O…
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Q: Calculate the thcoretical uicld of the precipitate formed in the reaction 4ml of O.17M Na OH 2ml of…
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Q: 107Exactly 30.2mL of HCI was consumed in the titration of 1.6g of primary standard sodium carb .…
A: Given: Volume of HCl is 30.2 mL. Mass of Na2CO3 is 1.6 g. Molar mass of Na2CO3 is 106 g/mol. To…
Q: A 100-m/ of on unknawn concentration weak acid (HX) was allocred to dissociate and attained…
A: The dissociation of weak acid takes place as follows: The expression for the dissociation constant…
Q: 6g of impure NaOH were dissolved in water and the solution was completed to become 1L ,if 25ml of…
A: Molarity is the concentration term for number of moles of solute dissolved in one liter of solution.…
Q: B? The concentrations of acid and base in buffer B are twice the concentrations of buffer A (buffer…
A: Given : Concentration of acid and base in different buffer solutions. To find : Relationship…
Q: When determining water by the K method. Fisher's end point of titration is determined by Choose one…
A: The Kark-Fisher titartion is used to determine the amount of water in a sample. The principle of…
Q: In EDTA titrations, a,4- is an important param as a function of [H']. (Note: The definition of dyt-…
A: To derive an expression of αY4- as a function of H+ in EDTA titrations
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- Lead poisoning has been a hazard for centuries. Some scholars believe that the decline of the Roman Empire can be traced, in part, to high levels of lead in water from containers and pipes, and from wine that was stored in leadglazed containers. If we presume that the typical Roman water supply was saturated with lead carbonate, PbCO3 (Ksp = 7.4 1014), how much lead will a Roman ingest in a year if he or she drinks 1 L/day from the container?When 85.0 mL of 0.250 M Ba(OH)2 solution is added to 85.00 mL of 0.250 M Al (NO3)3 solution, a white gelatinous precipitate of Al(OH)3; is formed. Assuming 100% yield, (a) what mass (in grams) of Al(OH)3 is formed? (b) what is the molarity of each of the ions Ba2+, OH-, Al3+, NO3- in the resulting solution?(2) uaäi Q5. The phenolphethaline indicator is .. used in Precipitation reactions Complex reactions Coloured reactions No One of these Decomposition reactions
- 9. Solid sodium carbonate, Na,CO, is used to determine the concentration of a HBr(aq) by titration. What is the role of sodium carbonate in this titration? (A) Catalyst (B) IndicatorA8 (C) Primary standard (D)Proton donor euld bne el hotsolon (A) nielerd auld lom onolbni Vegnto nouloe s lo ophar Hq es Short Answer 1. Consider the following equilibrium for the chemical indicator phenol red, HInd, at pH = 7.3. 0.00 H,0 = H,O* + Ind red HInd + Yellow If 10.0 mL of 0.10 mol/L NAOH(aq) is added, how will the concentration of H,O* (aq) be affected, and what is the color of the resulting solution?(a) (1) CI AICI (2) HNO₂, H₂SO (3) O (4) Me,S (5) NaBH; H₂O+ एल Draw Your SolutionThe maximum amount of nickel(IT) carbonate that will dissolve in a 0.283 M nickel(II) acetate solution is Suhmit Answar Rato Eintion.Groun a more arauo attemots remainina The molar solubility of calcium chromate in a 0.147 M calcium acetate solution is М.
- **** (5) 3 Opper mctal (ind Concentad ted und aad be oonsis hange in , releare of lgas mredcolo color to green releave of gas mn Hedcolor INU we and thabbles in thi botton solutim Not HNU3rani 3(Q) Hy Dnt (uNOgndi (L) Balanced Net Ionic Equation No.2/CHB en+GEARapp.101edu.cо Question 14 of 15 Submit A solution of phosphoric acid (HPO,) with a known concentration of 0.250 M HAPPO is titrated with a 0.800 | M NaOH solution. How many mL of NaOH are required to reach the third equivalence point with a starting volume of 72.0 mL H,PO, according to the following balanced chemical equation: НРО, + 3 NaOH -> NA PO, + 3 Н.о 4 STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 0.800 6.75 x 104 2 1 0.250 0.0675 22.5 1000 3 67.5 7.50 72.0 0.001 43.2 L HAPPO mol NaOH М НАРРО g NaOH L NaOH mL H,PO, mL NaOH M NaOH g H PO mol HPO, +The following salts were added to a beaker of distilled water: NaCl (NH2)2CO; Ca(NO;)2 Which of the following products will precipitate out of solution? O NH CI O CaCO, FONTHN O O NaCO;
- After studying the separation scheme for Group III cations and using your background knowledge on separation of Group I and Group II cations: (a) devise a flow chart or schematic diagram to separate and confirm the presence of the given ions in the solution below; (b) write the chemical formula of the precipitates formed; and (c) provide a brief explanation about your schematic diagram.SAn analyst wishes to add 256mg of CI to as reaction CMixture. How Many M:114ers of o.217M Bac12, Should be Added ?11. (ii) A student was given 400 cm of aqueous ammonia solution, NH,(ag), The student was asked to determine how many moles of NH, had been dissolved to prepare the solution. The student titrated 25.0cm of NH.(ag) and found that it reacted exactiy with 32.5cm3 of 0.100 mol dm sulturic acid. The equation for this reaction is shown below. 2NH,(aq) + H,SO,(aq) → (NH)SO,(aq) Calculate the amount, in moles, of NH, in the original 400 cm3 solution. mol answer =