Discuss whether the indicator method applied for determination of alkalinity is satisfactory, is there any other method of measurement of alkalinity, what are the advantages and disadvantages of each?
Q: Enumerate at least 3 specific medical applications of complexometric titration and discuss each.
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A: Log Mean Activity Coefficient = -0.509|Z+Z-|√I
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A: Please find the below attachment. Please rate if it is helpful for you. Thank you.
Q: Why is the use of high-precision volumetric material essential for titration?
A: Volumetric analysis is a technique used to determine the unknown concentration of a reactant with…
Q: When treated with a solution of ammonium sulfate an unknown solution produced heavy white…
A: The above procedure is carried out to identify unknown solutions.
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Q: In supposing that a linear relationship exists between the readings taken from the apparatus and…
A: We will first plot the calibration curve using turbidity (y axis) vs concentration (x axis) data.
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Q: 500 mL of river water was subjected to sulfate determination by the barium gravimetric method. The…
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A: 2 moles of potassium permanganate reacts with 5 moles of oxalate.
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Q: Jon 24 The colour exhibited by Bromo cresol indicator in acidic and basic medium is
A: Indicator have different colour in acidic and basic medium
Q: A solution containing Mg2+ was buffered to pH 9.99 and titrated with EDTA. Eriochrome black T, with…
A: Eriochrome black T is a diprotic acid, represented as H2E.
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A: Silver chromate when dissolves dissociate into 2 moles of Ag+ and 1 mol of CrO42-.
Q: Which of the following statements is/are TRUE regarding the analysis of alkali mixtures containing…
A: Introduction : The equivalence point can be defined as the exact point in a titration when moles of…
Q: Explain the principles behind the colorimetric methods used in each electrolyte
A: Colorimeter are used to detect color and determine solution concentration.
Q: Why did the colour of the solution in the conical flask change at the end of the titration?
A: In the titration there is color change at the end.
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A: Given, Sought : Fe3O4 Precipitate : Fe2O3
Q: Calculate the values expected for the total alkalinity and for the phenol- phthalein alkalinity of a…
A: The total alkalinity of water is defined as the measure of the amount of OH-, HCO3-, and CO32-…
Q: Write the relevant chemical reaction and mass-balance expression for 0.1 M NaCl and 0.1 M NaH2PO4.
A: Sodium Dihydrogen Phosphate + Sodium Chloride = Nahpoite + Hydrogen Chloride 0.1 M of aqueous Sodium…
Q: Calcium Iodideand Sodium Oxalate may have led to the pain that the patient was experiencing.…
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A: In selective precipitation only specifically the one which is desired is precipitated in presence of…
Q: For water having a total alkalinity of 1.00x10^-3 mol/L and a pH of 10.34 what is the percentage…
A: Given: Total alkalinity of water = 1.00 × 10-3 mol/L pH = 10.34
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A: The determination of concentration of analyte is done using gravimetric analysis. The analyte is…
Q: Explain how you would analyse Fe(OX).2H2O for iron and oxalate if you were provided with a…
A: FeC2O4.2H2O has Fe2+(aq) as the cation and oxalate ion, C2O42-(aq) as the anion.
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Q: How do you choose the most suitable precipitate for gravimetric purposes if given many choices?
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A: Solution to the question is given below ?
Q: A 35 year old male was taken to the hospital with excruciating pain in the lower abdominal area. It…
A: Since you have posted a question with multiple sub parts, we will solve only first three subparts…
Q: A 35 year old male was taken to the hospital with excruciating pain in the lower abdominal area. It…
A: Hi there, as there are multiple questions posted. We are answering the first 3 sub-parts. if you…
Q: Change of indicators colour is related to the change of the .A Structure .B Intramolecular…
A:
Q: When treated with a solution of ammonium sulfate an unknown solution produced heavy white…
A: The ions present in the unknown solution has to be given,
Q: A 35 year old male was taken to the hospital with excruciating pain in the lower abdominal area. It…
A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
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A: Since you have posted multiple questions, we are entitled to answer the first only.
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Q: Which of the following is a good description of a standard solution as a titrant? a) selectively…
A: The standard solution of titrant is the solution with a known concentration.
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- In determination of mixed alkali, does adding H2O to the analyte can afect the process of titration?Q: The concentration of the sulphate ion in a mineral water can be determinedby the turbidity which results from the addition of excess BaCl2, to a quantityof measured sample. A turbidometer used for this analysis has been standardisedwith a series of standard solutions of NaSO4. The following resultswere obtained:Standard solution Conc. (SO4)2− (mg/L) Reading of turbidometerS0 0.00 0.06S1 5.00 1.48S2 10.00 2.28S3 15.00 3.98S4 20.00 4.61i. In supposing that a linear relationship exists between the readings takenfrom the apparatus and the sulphur ion concentration, derive an equationrelating readings of the turbidometer and sulphate concentration(method of least squares).ii. Calculate the concentration of sulphate in a sample of mineral waterfor which the turbidometer gives a reading of 3.67.A student has a sea water sample which contains Ca2+ ions . Describe briefly how he willdetermine the concentration of Ca2+ ion in the sample using a simple titration. Explain the colourchanges at the endpoint. Which medium is suitable for performing the titration, acidic or basic medium and why?
- what is the purpose of preparing of a standard sodium hydroxide solution in determination of purity of impure KHP?An unknown salt X reacts with hot conc. H2SO4 to produce a brown coloured gas which intensifies on addition on copper turnings. On adding dilute ferrous sulphate solution to an aqueous solution of X and then carefully adding conc. H2 SO4 along the sides of the test tube, a brown complex Y is formed at the interface between the solution and H2 SO4. Identify X and Y and write the chemical equation involved in the reaction.The chief chemist of the Brite-Metal Electroplating Co. isrequired to certify that the rinse solutions that are discharged from the company’s tin-plating process into the municipal sewer system contain no more than 10 ppm (parts per million) by mass of Sn2+. The chemist devises the following analytical procedure to determine the concentration. At regular intervals, a 100-mL (100-g) sample is withdrawn from the waste stream and acidified to pH = 1.0. A starch solution and 10 mL of 0.10 M potassium iodide are added, and a 25.0-mA current is passed through the solution between platinum electrodes. Iodine appears as a product of electrolysis at the anode when the oxidation of Sn2+ to Sn4+ is practically complete and signals its presence with the deep blue color of a complex formed with starch. What is the maximum duration of electrolysis to the appearance of the blue color that ensures that the concentration of Sn2+does not exceed 10 ppm?
- b. A student has a sea water sample which contains Ca2+ ions . Describe briefly how he willdetermine the concentration of Ca2+ ion in the sample using a simple titration. Explain the colourchanges at the endpoint. Which medium is suitable for performing the titration, acidic or basic medium and why?Is there a difference when the needle or metal clip is placed on the surface of distilled water with dilute amounts of liquid detergent? Explain your observations in terms of the strength of IMFA present in each condition.What recommendations can you give in titration of mixed alkali?
- Complete the balanced dissociation equation for the compound below in aqueous solution. AgI ->Calcium fluoride is considered as a relatively insoluble compound and therefore lime or slakedlime has been considered as a possible material to remove excess fluoride in water of boreholesin certain parts of the country. The solubility product of CaF2 is Ksp = 3 x 10 – 11 and that ofCa(OH)2 isKsp =8x10-61. How much lime can be added to the water to remove 10 mg of F- ion per litre ofborehole water?(The atomic masses are Ca: 40.08; F: 19.00; O: 16; H: 1)A 600.0 mg sample consisting of only CaC2O4and Mg C2O4is heated at 500oC converting the two salts to CaCO3and MgCO3. The sample weighs 465.0 mg. If the sample had been heated at 900oC where the products are CaO and MgO, what would the mixture of oxides weigh? Show the clear and complete solution