If a sample of silver coin weighing 0.5230 g gives a precipitate of AgCl (143.45) weighing 0.3559 g, the weight of AgBr (187.90) that could have been obtained from the same weight of sample is 0.89 grams. true or false?

Q: The ideal product of gravimetric analysis called precipitate should portray some specific…

A: In gravimetric analysis the precipitates are insoluble ionic solid products of a reaction, formed…

Q: A second analyst was attempting to determine the percent KHP in an unknown sample, similar to that…

A: From the given molarity of NaOH, number of moles of NaOH can be calculated followed by the…

Q: The chloride in a sample is to be determined gravimetrically by precipitation and weighing AgCl.…

A: The answer is 2.47g. Here in this question  1. First you have to find out moles of AgCl so that you…

Q: is the mass of the oxalic acid (diprotic acid) in the sample and what is its mass percent? (0.753 g,…

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Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

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Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: Considered that 250 mL of oxalic acid solution is neutralized by the 46.1 mL of sodium hydroxide…

Q: A10g sample of a substance of unknown molar mass requires 40 mL of standard solution for titration;…

A: Volume of the standard solution = 40 ml or 0.04 L Let the concentration (M) of the standard solution…

Q: The amount of hydrogen peroxide (H2O2) in a sample of hair bleach was determined by titration with a…

A: Since, Number of moles= Concentration× Volume

Q: If 45.0 mL of 0.250 M CaCl2 is added to 19.0 mL of 1.00 M AgNO3, what is the mass of the AgCl…

A: Balanced chemical equation: 2AgNO3 (aq)  +   CaCl2 (aq)   ------>   2AgCl (s)   +   Ca(NO3)2 (aq)…

Q: How many grams of magnesium hydroxide will precipitate if 25.0 mL of 0.235 M magnesium nitrate with…

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Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

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Q: What mass of FeSO4.(NH4)2SO4. 6H2O is present in a sample if it is titrated to its equivalence point…

A: Given: Volume of  KMnO4    = 4.100 mL Concentration of KMnO4 = 0.100 N mass of FeSO4.(NH4)2SO4.…

Q: A sample of pure compound (CH3)4NB weighing 0.100 g was dissolved and treated with a reducing agent…

A: Given :  Mass of (CH3)4NBrw = 0.100 gm  Mass of AgBr ppt fromed = 0.200 gm  Molar mass of AgBr =…

Q: In the gravimetric analysis of unknown ferrous sulfate added with solution of barium chloride. Write…

A: Gravimetric analysis is a type of quantitative technique in which the amount of the analyte is…

Q: A 0.1824-g sample that contains both NaCI (MW= 58.442) and NaBr (MW= 102.89) is titrated with 0.1052…

A: Given data,Mass of sample=0.1824 gMolecular weight of NaCl=58.442 g/molMolecular weight of…

Q: A sample contains BaCl2 plus inert matter. What weight must be taken so that when the solution is…

A: When barium chloride is titrated with silver nitrate, the corresponding chemical equation is:…

Q: Write the formulas for the precipitate when an excess of NH4OH is mix with thioacetamide and a…

A: The cations, such as Fe2+, Cr3+, Mn2+, and Zn2+, precipitate as sulfide and hydroxide when excess…

Q: concentration

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Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The given data is as follows: The mass of oxalic acid = 204 mg = 0.204 g The volume of water = 250…

Q: If a 1.25 g sample of magnesium oxide (98.9%) were titrated with 70 ml of 104 N of sulfuric acid…

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Q: How many grams of sample which contains 18.00% Na2O (61.98) should be taken for analysis in order to…

A: A numerical problem based on stoichiometric equation, which is to be accomplished.

Q: The titration of 0.9297 g of KHP (molar mass=204.227 g/mol) requires 41.02 mL of NaOH solution, What…

A: Given: Mass of KHP = 0.9297 g Volume of NaOH = 41.02 mL Molar mass of KHP = 204.227 g/mol

Q: A 0.5504-g sample of KHP (potassium hydrogen phthalate, KHC8H4O4; molar mass = 204.22 g/mol) is…

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Q: If 25.0 mL of 0.120 M Na3PO4 and 30.0 mL of 0.110 M CaCl2 are mixed, what precipitate forms?  Write…

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Q: (4) If the end point of the titration was calculated to have occurred at a volume of 17.32 mL and…

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Q: A 280.5 mg sample containing only Pb3O4and inert matter gives a precipitate of PbSO4 weighing 381.5…

A: Given as The sample contains Pb3O4 as 280.5 mg The precipitate of PbSO4 weighing 381.5 mg The purity…

Q: Before it was banned in the 1970s due it its non-selective toxicity, thallium (1) sulfate, TI2SO4…

A: Given data: The volume of thallium (I) sulfate (Tl2SO4) is 100.0 mL=0.1 L. The mass of thallium (I)…

Q: After studying the separation scheme for Group III cations and using your background knowledge on…

A: It is a method of identifying and classifying elements into a group from a solution provided through…

Q: Calcium oxalate is a sparingly soluble ionic compound composed of calcium ions (Ca2+) and oxalate…

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Q: What volume of a 0.462 M NaOH solution would be required to titrate 2.85 g of pure KHP

A: In acid base titration, all H+ neutralised by OH- . Here from mass of KHP we can determine moles of…

Q: Which of the following will be a precipitate in aqueous solution?     a. MgBr2   b. NaBr   c.…

A: (c) AgCl silver chloride forms a white precipitate in aqueous medium. Because the solublity product…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

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Q: Titration of 0.2121 g of pure Na2C2O4 (134.00 g/mol) required 43.31 mL of KMnO4. What is the molar…

A: From the given reaction, it is clear that 2 mol of MnO4- reacts with 5 moles of C2O42-to form the…

Q: 50. The purity of sodium oxalate Na₂C₂O4 (134.00 g/mol) is determined by titrating with a standard…

A: Titration reaction is common quantitative lab method which used to determine the concentration of…

Q: In the titration of a volume of 50 mL of a hydrochloric acid solution with Solution density 1.045 g…

A: Density is measure of mass per unit volume. Density =MassVolume Molarity is the ratio of moles of…

Q: is the mass of the oxalic acid (diprotic acid) in the sample and what is its mass percent? (0.753 g…

A: Given that: Mass of impure oxalic acid sample = 1.034g [NaOH] = 0.485M Volume = 34.47ml =…

Q: A local company sent you their green alternative for window cleaner to be tested for percent (w/v)…

A: Titration question

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: What minimum volume of 0.09621 M AgNO3 willbe needed to assure an excess of silver ion in the…

A: The 0.2513 g sample of NaCl is assumed to have no impurities in this case, just to make certain that…

Q: The chloride ion content of a 250.0-mL seawater sample was titrated against 0.1102 M silver nitrate,…

A: The Chloride ions from the seawater are titrated against silver nitrate and the objective of the…

Q: Gravimetric Analysis. Please include complete solution, thank you. In the gravimetric…

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Q: 87. What is the use of barium hydroxide in the precipitation of standard NaOH solution? a. catalyst…

A: Q. 87 Ans: (c) precipitate any carbonate present insolution. Barium hydroxide is used in titrations.…

Q: Explain in four ways what happens when 25 mL of unknown AgNO3 in an Erlenmeyer flask is added with…

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Q: The chloride ion content of a 250.0-mL seawater sample was titrated against 0.1102 M silver nitrate,…

A: Given values: Volume of chloride solution= 250 mL Molarity of silver nitrate = 0.1102 M Volume used…

Q: 3) When excess sliver nitrate was added to 25.00 ml of barium chloride, a precipitate of sliver…

A: Here excess of AgNO3 was added to 25 ml of BaCl2 solution in order to precipitate all Cl^- to AgCl.…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Mass of oxalic acid = 86 mg = 86×10-3 g Molar mass of oxalic acid = 90.034 g/mol Volume of oxalic…

Q: A standard solution of AgNO3 was prepared by dissolving 7.107 g of pure AgNO3 in sufficient water to…

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Q: In one experiment, 0.2480 g sample of CaCO3 was dissolved in an acidic solution. The calcium was…

A: Given data,Mass of sample=0.2480gMass of CaC2O4.H2O=0.3084g

Q: What is the concentration of nitrate ions in a solution made by mixing 839 mL of 0.2 M potassium…

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