[References) Use the References to access important values if needed for this question. In the laboratory you are given the task of separating Ba* and Cu²* ions in aqueous solution. For each reagent listed below indicate if it can be used to separate the ions. Type "Y" for yes or "N" for no. If the reagent CAN be used to separate the ions, give the formula of the precipitate. If it cannot, type "No" Y or N Reagent Formula of Precipitate if YES 1.O NaCI 2.O K,CO3 3.O KOH Submit Answer Try Another Version 2 item attempts remaining

[References) Use the References to access important values if needed for this question. In the laboratory you are given the task of separating Ba* and Cu²* ions in aqueous solution. For each reagent listed below indicate if it can be used to separate the ions. Type "Y" for yes or "N" for no. If the reagent CAN be used to separate the ions, give the formula of the precipitate. If it cannot, type "No" Y or N Reagent Formula of Precipitate if YES 1.O NaCI 2.O K,CO3 3.O KOH Submit Answer Try Another Version 2 item attempts remaining

General Chemistry - Standalone book (MindTap Course List)

11th Edition

ISBN:9781305580343

Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Chapter21: Chemistry Of The Main-group Elements

Section: Chapter Questions

Problem 21.199QP

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The solubility of Ag₂CO3 is measured and found to be 3.41×10-2 g/L. Use this information to calculate a Ksp value for silver carbonate. Ksp = ___________ The solubility of CaSO4 is measured and found to be 0.689 g/L. Use this information to calculate a Ksp value for calcium sulfate. Ksp = ___________ The solubility of BaF2 is measured and found to be 1.29 g/L. Use this information to calculate a Ksp value for barium fluoride. Ksp = _________ (The attached picture is an example how to solve the given problems; The example's problem is The solubility of Ag2SO3 is measured and found to be 4.51x10-3 g/L. Use this information to calculate a Ksp value for silver sulfite.)
A 0.7336-g sample of an alloy that contains copper and zinc is dissolved in 8 M HCl and diluted to 100 mL in a volumetric flask. In one analysis, the zinc (At. Mass = 65.38 g/mol) in a 25.00-mL portion of the solution is precipitated as ZnNH4PO4, and isolated as Zn2P2O7 (FM = 304.70g/mol), yielding 0.1163 g. The copper (At. Mass = 63.55 g/mol) in a separate 25.00-mL portion of the solution is treated to precipitate CuSCN (121.63 g/mol), yielding 0.2383 g. Calculate the %w/w Zn and the %w/w Cu in the sample.
Consider a mixture of the two solids BaCl2•2H2O (FM 244.26) and KCl (FM 74.551), in an unknown ratio. When the unknown is heated to 160°C for 1 hr, the water of crystallization is driven off. A sample originally weighing 1.783 g weighed 1.562 g after heating. Calculate the weight percent of Cl in the original sample.
The solubility of Ag2SO3 is measured and found to be 4.51x10-3 g/L. Use this information to calculate a Ksp value for silver sulfite. Ksp = _____ The solubility of AIPO4 is measured and found to be 1.43x10-8 g/L. Use this information to calculate a Ksp value for aluminum phosphate. Ksp = _______ The solubility of MgF₂ is measured and found to be 7.45x10-2 g/L. Use this information to calculate a Kap value for magnesium fluoride. Ksp = ________
A prospector wants to know how much gold is in the ore that he has been mining. A sample weighing 11.2456 grams is dissolved in Aqua Regia (a mixture of HCl and HNO3). That sample is then transferred to a 200.00 mL volumetric flask and diluted to the mark with water. This is called solution 1. A volumetric pipet is used to transfer 10.00 mL of solution 1 to a second 500.00 mL volumetric flask. The second flask is filled to the mark resulting in solution 2. 5.00 mL of solution 2 is analyzed and found to contain 13.45 ppm Au. Answer each of the questions below. 1. What is the concentration of Au in solution 1. The units should be ppm 2. How many micrograms of Au are in the 5.00 mL sample that was measured? 3. How many micrograms of gold were in the 500.00 mL flask containing solution 2. 4. How many grams Au were in the flask containing solution 1 5. What is the %Au in the original sample?
Explain why solutions of Ca2+ and Mg2+ in the presence of carbonate leave deposits (from the reaction involved), but Na+ does not.
29. How much 0.600 N base must be added to 750 mL of a 0.200 N base in order for the solution to be 0.300 N? 30. Calculate the molarity of KMnO4 (158m04 g/mol) sok standardized against 1.356 grams Na2C2O4 (134 g/mol) requiring 25 mL of the solution in acidic medium?
Give only typing answer with explanation and conclusion 0.1745 g of primary standard Na2C2O4 is used to set a freshly prepared KMnO4 solution and 30.24 mL of KMnO4 solution is spent at the turning point. Since 36.92 mL of this KMnO4 solution is consumed for the determination of iron in 0.5618 g ore sample, calculate the amount of iron in the ore in terms of % iron (III) oxide and % iron (III) chloride. (Fe: 56, K: 39, Mn: 55, O: 16, Na:23, C: 12, Cl: 35.5 g/mol)
Mass of KxFe(C2O4)y · zH2O : 5.60 g Mass of sample : 0.155 g Mass of FeCl3 used in preparation : 1.60 g Molarity of standard NaOH used : 0.100 V1, volume of standard NaOH required for first equivalence point : 9.000 mL V2, volume of standard NaOH required for second equivalence point : 15.90 mL Calculate the percent of iron in the sample :
To determine the percent purity of a sample containing iron(II) ammonium sulfate; Suggest , 2 different methods for iron(II) ion. Explain in detail what errors may occur in the methods. (volhard method, gravimetric analysis, kjeldahl, etc.) Percentage content: 1-100% ; the solution concentrations to be used are 0.01-0.1M; Take the volumes of solution to be used between 1-50 mL
A mixture containing only BaO (153.3264) and CaO (56.0774) weighs 3.00 g. The oxides areconverted to the corresponding sulfates, which weigh 5.00 g. Calculate the % Ba and %Ca in theoriginal mixture. Ba (137.327); Ca (40.078); BaSO4 (233.896); CaSO4 (136.1406)
Mass of KxFe(C2O4)y · zH2O : 4.70 g Mass of sample : 0.175 g Mass of FeCl3 used in preparation : 1.60 g Molarity of standard NaOH used : 0.100 V1, volume of standard NaOH required for first equivalence point : 7.750 mL V2, volume of standard NaOH required for second equivalence point : 19.70 mL Calculate the mass of iron in the sample :

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