Q: The volume of water needed to dissolve 0.0555 grams of lead bromide is ]L. Assume no volume change…
A: Given, The amount of lead bromide (PbBr2) = 0.0555 g. The molar mass of lead bromide (PbBr2) = 367…
Q: Why is rinsing of the burettes both with distilled water and solution a critical step in titration?
A: Please find your solution below : In chemical analysis, titration (volumetric analysis) is a…
Q: Describe the principle behind “like dissolves like.”
A: The basic principle of solubility is "like dissolves like". we explain the science behind the…
Q: In order for the gravimetric analysis to be valid, how do you ensure that all of the chloride ions…
A: Gravimetric analysis is the analysis in which ions from solution is precipitate as a solid ,which…
Q: The chloride in a sample containing approximately 3.5 % NaCl is to be determined gravimetrically as…
A: The chemical equation representing the reaction for the formation of AgCl is shown below. The mass…
Q: The chloride in the sample is to be determined gravimetrically by precipitating and weighing AgCl.…
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Q: 1. Titration of 0.485g sample by the Mohr method required 38.8mL of standard 0.1060 M AgNO3…
A: Given, Weight of sample= 0.485 g Concentration of AgNO3 = 0.1060 M Volume = 38.8mL = 38.8/1000 =…
Q: A 0.8000-g sample of iron ore containing 21.00% Fe is analyzed gravimetrically. If the final…
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Q: . A compound is known to be NazCO3, NazSO4, NaOH, NaCl, NaC2H302 or NANO3. When a barium nitrate…
A: Given: The possibility of the compound is Na2CO3, Na2SO4, NaOH, NaCl, NaC2H3O2 and NaNO3. When…
Q: The addition of hydrochloric acid to the solution of containing silver group of cations is to…
A: Silver(Ag+), lead(Pb2+) and mercury(Hg22+) are grouped together and are called group 1…
Q: 500 mL of river water was subjected to sulfate determination by the barium gravimetric method. The…
A: The sulfate ions present in the river water are precipitated as barium sulfate. The volume of water…
Q: The solubility of CaF, in water at 25 °C is measured to be 0.017 Use this information to calculate…
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Q: (b) In the pH metric titration, calomel and glass electrodes are used for measuring. What are the…
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Q: The solubility of strontium carbonate (SrCO3) is 0.0011 g/100 mL at 20ºC. Calculate the Kspvalue for…
A: It is product of maximum concentration of ions or activity of electrolyte at particular temperature.…
Q: 1. The volume of water needed to dissolve 0.0659 grams of lead bromide is ??? L. Assume no volume…
A: A numerical problem based on Solubility, which is to be accomplished.
Q: A few drops of aqueous sodium hydroxide were added to aqueous chromium(III) * nitrate. and the…
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Q: What is the rationale of diluting the solution in the flask with washing distilled water at the…
A: Titration is done in neutralization reactions or redox reactions to determine the concentration of…
Q: 9. Given that CuBr would precipitate later than Cul in a solution containing equimolar…
A: given CuBr and CuI equimolar
Q: What quantity of sample should be taken for the analysis if it contains 16.2% chloride and the…
A: Given that : % of Chloride contained in the sample = 16.2 % Mass of AgCl precipitate to be obtained…
Q: How will the reported solubility product of borax be affected if the solid borax is contaminated…
A: Step1: The borax has following molecular formula as: Na2B4O7.10H2O It is dissociates in water to…
Q: How many grans of Kl can be desolved in this solution without a precipitate of Agl() foming?
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Q: The volume of water needed to dissolve 0.0691 grams of calcium chromate is L. Assume no volume…
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Q: The volume of water needed to dissolve 0.0746 grams of calcium hydroxide is L. Assume no volume…
A: Given data, Mass of Calcium hydroxide = 0.0746g Ksp of Calcium hydroxide = 5.5 x 10-6 Ksp of AgBr =…
Q: Use the pC-pH diagram for open carbonate system to find the equilibrium pH for a solution prepared…
A: There are two types of bases/acids. One is strong base/acid which is completely dissociable in into…
Q: In the determination of Mass% NaOCI in Bleach Sample (Titration), can sulfuric acid be used instead…
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Q: Why can’t hypochlorite be determined in solution using a simple redox titration rather than an…
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Q: In the determination of Mass% NaOCI in Bleach Sample (Titration), does addition of water to the…
A: During the mass % determination of NaOCl in bleach sample, first NaOCl is converted to HOCl in…
Q: Which precipitates of Group Il do not dissolve in acidic pH? How can you positively confirm the…
A: under formal group analysis, all the cations have been classified on the basis of their…
Q: Which is a highly purified compound that serves as a reference material in titration? O reference…
A: Titration is a method to determine the concentration of an unknown solution by using the solution of…
Q: Why a precipitate of manganese dioxide be removed from the potassium permaganate solution before…
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Q: 1. What is the role of chromate ions in chloride determination? 2. Why pH range is important in…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Why a filter paper cannot be utilized for the removal of potassium permaganate precipitate?
A: Filter paper can be defined as a semi-permeable paper that helps us to separate fine solid particles…
Q: The solubility of lead (II) chloride is 1.00 g in 100 mL. 165.6 g of nitrate of Lead (II) in 900 mL…
A: The lead (II) chloride solubility is 1 g in 100mL. Then, its solubility is 10 g in 1000mL. The…
Q: Is the standardization of titrant always the first step in all titrimetric analysis? Why or why not?
A: To find: If the standardization of titrant always the first step in all titrimetric analysis?
Q: 1. If a sample of silver coin weighing 0.2500 g gives a precipitate of AgCl weighing 0.2991 g, What…
A: Given, If a sample of silver coin weighing 0.2500 g gives a precipitate of AgCl weighing 0.2991 g,…
Q: The volume of water needed to dissolve 0.0652 grams of barium sulfate is…
A: Amount of BaSO4 = 0.0652 g Ksp BaSO4 = 1.5 * 10-9 Volume of water needed = to be determined
Q: Explain the imporatnce of adding HCl during the washing of the initial precipitate
A: A question based on analytical separation that is to be accomplished.
Q: Why are many ionic precipitates washed with electrolyte solution instead of pure water?
A: The polar substances are the one which is separated by electric charge and leads to the formation of…
Q: Suppose that a small portion of the sulfate precipitated as lead sulfate rather than as barium…
A: Answer - According to the question - Given - Small portion of the sulfate precipitated as lead…
Q: 0.6407g sample containing chloride and iodide ions gave a silver halide precipitate weighing…
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Q: Firstly, the student used potassium hydrogen phthalate (KHP, 204.22 g/mol) as standard to determine…
A: Standardization: Number of moles of KHP reacted in trail 1 be calculated as follows, From the…
Q: Why is it normal to add a slight excess of silver nitrate solution when precipitating chloride ion?
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Q: A. What is the acid/base ratio? Why is it important in the titrimetric process? B. Why should you…
A: a. Answer - According to the question - acid base ratio - We know that for perfect neutralization,…
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Q: Use water to rinse the sides of the Erlenmeyer flask containing the analyte. It will dilute the…
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Q: What is the acid/base ratio? Why is it important in the titrimetric process?
A: Acid base ratio is the exact amount of acid and base required to obtain a desired pH. This value can…
Q: Why is the erlenmeyer flask ideal to use for titrations? Why not use a beaker?
A: Erlenmeyer flask has flat bottom, conical body and cylindrical neck.
Q: What is the activity coefficient of hydroxide for a solution containing 0.0020 M potassium hydroxide…
A: The chemical reactions taking place are: KOH → K+ + OH-CaCl2 → Ca2+ + 2Cl- Calculating the ionic…
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- It is required to know the concentration of an aqueous solution of H2SO4 that appeared in the laboratoryChemistry III and it's unlabeled. To this end, a student of analytical chemistry carried out the followingProcedure: He took 5.00 mL of a fresh and standardized solution of 0.525M NaOH and brought them to a250.0 mL balloon to be completed with distilled water. Subsequently, he poured 15.00 mL of the solutionH2SO4 of unknown concentration in an Erlenmeyer flask and added 2 drops of phenolphthalein.Using a burette filled with the last NaOH solution, he noticed that when adding 39.40 mL of the hydroxidethe Erlenmeyer solution reached a faint but permanent pink. With the above dataDetermine the concentration and pH of the H2SO4 solution.Consider the following reaction; 2S2O32- + I2 → 2I- + S4O62- If 10.0 mL of 0.10M S2O32- is needed to titrate a 50.0mL solution containing I2, what is the concentration (mol/L) of I2 in the unknown solution?100.0-mL sample of a saturated PbSO4 solution was evaporated until dry. If 24 mg of solidPbSO4 was recovered, what will be the Ksp value for PbSO4?
- the solubility of silver sulfate in water is determined to be 570 mg/100mL determine its KSP and the number of moles of silversulfate dissolved in 750 mL of 0.005 M NH4Fe(SO4)2Calcium 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)For µ=0.1, the activity coefficient (gamma) of M2+ is 0.41 while gamma of X- is 0.75. Calculate how many micrograms of MX2 dissolve in 324 mL of 0.10 M NaX solution. The molar mass of MX2 is 201 g/mol, and its Ksp is 3.8 x 10-9. Note that NaX is a salt of X-, an ion that participates in the equilibrium that applies to the solubility of MX2. a. 110 µg b. 27 µg c. 9.7 µg d. 44 µg e. 1000 µg
- A group of wealthy chemistry 1A students had a little too much disposableincome and decided to create the most expensive they could think of. Using various spectroscopictechniques the salt was determined to be rhodium (III) Bromide (RhBr3). When this salt was shaken withpure water at 25°C, the solubility was found to be 0.026 mg/mL. Calculate the Ksp of RhBr3A mixture containing only KCl and NaBr is analyzed by the Mohr Method. A 0.3172-g sample is dissolved in 50 mL water and titrated to the Ag2CrO4 endpoint, requiring 36.85 mL of 0.1120 M AgNO3. A blank titration requires 0.71 mL of titrant to reach the same endpoint. Report the % (w/w) KCl and NaBr in the sample. [Answer should be 82.41 % (w /w)]Exactly 0.1120g of pure Na2CO3 was dissolved in 100.0 ml of 0.0497 M HClO 4 . What mass in grams of CO 2 was evolved?
- ) What amperage is required to plate out 0.250 mol Cr from a Cr3+ solution in a period of 8.00 h?what is the morality of 245 g of H2SO4 dissolve in 1.000 L of solutionAssuming a bicarbonate ion concentration [HCO3-]of 1.00 × 10−3 M and a value of 3.5 × 10−11 for the solubility product of FeCO3, what would you expect to be the stable iron species at pH 9.5 and pE −8.0, as shown in Figure 3.4?