Consider the dissolution of the compound X2Y3, which gives X2Y22*, X2Y4+, X2Y3 (aq) and Y2. What is the mass balance expression for [Y2-] in terms of the other concentrations? O Y²] = [X2Y4+]- [X2Y3] O Y²] = [X2Y22*]+ 2[X2Y4*] O 2[Y²] = [X2Y3] + [X2Y2²*] + [X2Y4+] %3D O Y2] = [X2Y3] + [X2Y2²*] + [X2Y4+]
Q: 25. Answer the following questions in order to find the conditions under which Cd2+ and Zn2+ can, in…
A: Given [Zn2+] = 0.1M Ksp for ZnS = 1.2 x 10-23 K1 for H2S = 9.6 x 10-8 K2 for H2S = 1.3 x 10-14
Q: Calcium citrate (Ca3(C6H507)2; MM = 498.46 g/mol), a common food preservative, has a Ksp of 1.12 ×…
A:
Q: 1 Point In gravimetric determination of sulfate present in the soil, 0.2075g of sample was treated…
A: BaCl2 (aq) + SO4-2 (aq) → BaSO4(s)
Q: For u=0.1, the activity coefficient (gamma) of M2+ is 0.41 while gamma of X- is 0.75. Calculate how…
A: At ionic strength of 0.1, the activity coefficient values are: Ksp = 1.2 x 10-9
Q: A (3.6500 g) of impure ammonium aluminium sulfate (NH4AI(SO4)2)) was treated with ammonia (NH3(aq))…
A: Given: Mass of sample = 3.6500 g. Mass of Al2O3 formed = 0.4935 g.
Q: When 25.00 mL of unknown were passed through a Jones reductor, molybdate ion (MoO4^2-) was converted…
A: Volume of unknown sample = 25 mL
Q: Please answer the following with complete solution. Thank you. A mixture placed in an Erlenmeyer…
A: Given, Volume of silica gel = 6mL Volume of solvent = 40 mL mass of non volatile compound = 100 mg…
Q: 1. A process where impurity is precipitated along with the desired product. 2. Calculate the…
A: Gravimetric analysis is the process in which impurity is also precipitated along with the desired…
Q: Coprecipitation that involves foreign particles? a. Inclusion b. Mechanical entrapment c. Surface…
A: Co-precipitation :– The concurrent precipitation of more than one compound from an solution.…
Q: A carbonate fusion was needed to free the Bi from a 0.6400-g sample containing the mineral eulytite…
A: This is a complexometric titration.
Q: To adjust the thiosulfate (S20,2) solution to be used as a titrant in the copper determination,…
A: THe chemical equation of liberation of I2 by KIO3 is given as:IO3- + 5 I- (excess) + 6 H+ → 3 I2 + 3…
Q: To determine the percent purity of a sample containing iron(II) ammonium sulfate; Suggest , 2…
A: The question is based on the concept of quantitative analysis. we have to quantitatively estimate…
Q: Precipitate in gravimetric assay of iron (III) is: Fe(OH); Fe,O3 Fe2(SO4)3 Fe(SCN)3
A: Precipitate in gravimetric assay is used to separate ions from solution by using a precipitation…
Q: A 5.186 gram sample of the anti-malarial pesticide DDT was dissolved in 100.0 mL of alchohol and…
A: The structure of DDT is as shown below: One molecule of DDT has 5 atoms of Cl.
Q: 11. A 101.3-mg sample of an organic compound known to contain Cl is burned in pure O2 and the…
A:
Q: Mass of KxFe(C2O4)y · zH2O : 5.60 g Mass of sample : 0.155 g Mass of FeCl3 used in preparation :…
A: The given data indicates that titration is being carried out. The aqueous solution of the given…
Q: Question attached
A:
Q: Which is not true for electrogravimetric analysis? A. If the analyte has color in solution; The…
A: In an electrogravimetric analysis The analyte is quantitatively deposited on an electrode by…
Q: A cyanide solution with a volume of 12.02 mL12.02 mL was treated with 20.00 mL20.00 mL of Ni2+Ni2+…
A: Reaction of Ni2+ with EDTA4-: Ni2+ + EDTA4- →[Ni-EDTA]2-
Q: The thiourea in a 1.455 g sample of organic material was extracted into a dilute sulfuric acid…
A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…
Q: 0.6025-g sample was dissolved, and the Ca 2+ and Ba 2+ ions present were precipitated as BaC2O 4 .…
A: Note the dehydration equation of calcium oxalate and barium oxalate.…
Q: BH4- + 8Ag+ + 8OH- → H2BO3- + 8Ag(s) + 5H2O The purity of a quantity of KBH4 to be…
A: The question is based on the concept of quantitative estimation of potassium tetrahydro borate…
Q: 4. A sample containing a mixture of gm / mole (NaCI 58.44) and NaySO with a weight of 0.9532 gm…
A:
Q: A sample of anhydrous Na2CO3 (FM = 105.989) is suspected to be contaminated with either NaHCO3 (FM =…
A: Given information: Mass of sample = 0.7483 g Volume of solution = 50.00 mL Normality of HCl = 0.0125…
Q: Salt Theoretical Ksp MGCO3 3.5 x 108 Mg(OH)2 1.8 x 10-11 For the standardization of the HCl titrant,…
A:
Q: fraction of sodium hydroxide in this solution after reaction. 2502 Co wwater. Find mass fraction of…
A:
Q: Write down the defect chemistry equation for introduction TIO2 in MgO using the Kröger- Vink…
A:
Q: A sample weighing 650 mg containing KCI, BaCl2 and inert materials was dissolved in sufficient water…
A: Given, mass of sample = 650 mg =0.650 g Volume of AgNO3 = 0.1510 M Molarity of AgNO3 = 35.50 mL =…
Q: 1. Calculate the solubility of BaSO4 in a solution that is 0.01 and 0.05 M relative to NaCl and KCI,…
A: BaSO4 will be having no common ions in NaCl and KCl. Hence, the solubility of BaSO4 will be its own…
Q: 10.) A 0.6025 g sample was dissolved and the Ca 2+ and Ba 2+ ions present were precipitated as…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: A rock was analyzed for its copper content. Since copper goes through redox reactions, an iodometric…
A: To determine the copper content in a rock sample.
Q: Write a flow chart for the separation and identification of Ag+, Bi3+, and Ni2+
A: Group I : Ag+ Group II A : Bi3+ Group III B : Ni2+
Q: Using a first to last order structure, explain why and write the order in which K, Au*, Pb2, Al*,…
A: The solution of the question is given below:
Q: In the acetic acid determination in vinegar experiment; NaOH was standardized with 0.35 g KHP (molar…
A: In this question, we want to determine the Molarity of NaOH You can see details Solution below step…
Q: Mass of KxFe(C2O4)y · zH2O : 4.70 g Mass of sample : 0.175 g Mass of FeCl3 used in preparation :…
A: First the mass of potassium present in the sample is calculated. The given data indicates that…
Q: 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. 10.00 mL of solution…
A: Dilution factor refers to the ratio of initial volume of the concentrated solution to the final…
Q: A 0.2985 g sample of an antibiotic powder was dissolved in HCl and the solution diluted to 100.0 mL.…
A: The explanation is given below-
Q: Mass of KxFe(C2O4)y · zH2O : 5.60 g Mass of sample : 0.155 g Mass of FeCl3 used in preparation :…
A: The given compound first undergoes dissociation in its aqueous solution as:
Q: A 0.6025 g sample was dissolved and the Ca2+ and Ba2+ ions present were precipitated as BaC2O4.H2O…
A:
Q: There are two main types of gravimetric analysis. Volatilization methods are based on isolation and…
A: The given statement is false. Volatilization gravimetry involves separating components of our…
Q: burned in pure 02 and the combustion gases collected in absorbent tubes. The tube used to trap CO2…
A: Ans. The conservation of mass requires that all the carbon in the organic compound must be in the…
Q: Mass of KxFe(C2O4)y · zH2O : 5.60 g Mass of sample : 0.155 g Mass of FeCl3 used in preparation :…
A: The given compound undergoes dissociation in its aqueous solution as :
Q: The reaction of divalent manganese with oxygen in aqueous solutions is given as follows: Mn?* +…
A: Relationship between standard Gibbs energy changes for reaction- ∆G0=-RTlnK Where, R=Gas constant.…
Q: Mass of KxFe(C2O4)y · zH2O : 5.60 g Mass of sample : 0.155 g Mass of FeCl3 used in preparation :…
A: The valency of Potassium is known ( which is equal to 1), but he valency of the othercounterpart is…
Q: Why are we adding NH3 and write down the net reaction. CALCIUM PEROXIDE OCTAHYDRATE (CaO2.8H2O)…
A: Calcium peroxide cannot be synthesised through direct reaction of molecular oxygen with calcium…
Q: Finely divided AgNO3 is slowly added to a solution containing 0.0010 M each in CrO42, PO43, and Br .…
A: Given: Ksp of Ag2CrO4 = 1.2×10-12 Ksp of Ag3PO4 = 2.8×10-18 Ksp of AgBr = 5×10-13
Q: ypical adsorption indicator that is useful for the titration of chloride ion with silver nitrate.…
A: Adsorption indicators are actually organic compounds or organic dyes, and are used in precipitation…
Q: A sample of an iron ore was prepared for Fe3+ analysis as following: 3.4g of the sample was added…
A: Given, Fe3+ in the final solution is 2.3 mg/L Sample taken - 3.4 g
Q: On the direct iodometric titration experiment, Standardization of Na2S2O3 with KIO3 standard…
A: One of the most effective redox titration methods is iodometry. Because of its relatively low pH,…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- 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 RhBr3Why are we adding NH3 and write down the net reaction. CALCIUM PEROXIDE OCTAHYDRATE (CaO2.8H2O) SYNTHESIS CaCO3 + 2 HCl --> CaCl2 + CO2 + H2OCaCl2 + 2 NH3 + H2O2 + 8 H2O --> CaO2.8H2O + 2 NH4+ + Cl- 5 g of pure CaCO3 is added in small portions to 10 mL of water and 20 mL of 18% HCl in a 100 mL beaker and mixed with a bottle. During this process, the mixture should be boiled in order to remove the CO2 formed. When the CaCO3 addition is complete, it is observed that a sufficient amount of precipitate is formed at the bottom of the container. The solution is filtered while hot, the excess water is evaporated and cooled with ice water. Thereupon, he says 25-30 mL of 6% H2O2 solution, 5 mL. NH3 and 100 mL water are gradually added with stirring. After stirring for a while, the crystals formed are filtered, washed several times with water and dried in a desiccator.A 5.186 gram sample of the anti-malarial pesticide DDT was dissolved in 100.0 mL of alchohol and 10.00 mL aliquots were taken for analysis. One such aliquot was decomposed with metallic sodium, and the liberated chloride ion was precipitated as AgCl. Express the results of this analysis in terms of %DDT (C14H9Cl5, FW = 354.49) based on the recovery of 150 mg of AgCl (FW = 143.32).
- An analysis for borohydride ion is based on its reaction with Ag+: BH4- + 8Ag+ + 8OH- → H2BO3- + 8Ag(s) + 5H2O The purity of a quantity of KBH4 to be used in an organic synthesis was established by diluting 3.258g of the material to exactly 500.0mL, treating a 100.0 mL aliquot with 50.00 mL of 0.2639M AgNO3 and titrating the excess silver ion with 3.36 mL of 0.0397 M KSCN. Calculate the percent purity of the KBH4 [Report the numerical value of the result to two decimal places - NO UNITS]Which statement about the determination of the percentage purity of benzoic acid is correct? * A- Only sodium hydroxide solution can be used as the titrant in the volumetric analysis of benzoic acid. B- Analysing a benzoic acid sample that still contains some hydrochloric acid may yield an analyte percentage that is less than expected. C- Analysing a wet benzoic acid sample may yield an analyte percentage that is more than expected. D- All these statements are correct. E- None of these statements are correct.In this experiment you will be preparing aqueous solutions of [Co(NH3)5N3]Cl2 at fixed concentrations. Given Mr ([Co(NH3)5N3]Cl2) = 257.01, what mass of [Co(NH3)5N3]Cl2 is required to prepare 10 mL of 0.0200 mol.dm-3 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?Balance these equations by providing the missingcoefficients:(a) __ Fe1s2 + __O21g2¡__Fe2O31s2(b) __ Al1s2 + __ HCl1aq2¡__ AlCl31aq2 + __ H21g2(c) __ CaCO31s2 + __ HCl1aq2¡__ CaCl21aq2 +__ CO21g2 + __ H2O1l28.00mL aqueous suspension of elemental selenium is treated with 24.00mL ammonia 0.045M AgNO3 The reaction is as follows: 6Ag (NH3) 2 ++ 3Se (s) + 3H2O → 2Ag2Se (s) + Ag2SeO3 (s) + 6NH4 + After this reaction is completed, nitric acid is added to dissolve Ag2SeO3. However, Ag2Se does not dissolve during this time. Ag + consisting of dissolved Ag2SeO3 and the excess of the reagent requires 13.43mL 0.01294M KSCN in a Volhard titration. How many milligrams of Se are in each milliliter of sample? (Se = 78.96g / mol)
- A 1.000-g sample containing bromide was dissolved in sufficient water to give 100.0 mL. A 50.00 mL aliquot was measured and after acidification, silver nitrate was introduced to precipitate AgBr, which was filtered, washed, and then dissolved in an ammoniacal solution of potassium tetracyanonickelate(II): Ni(CN)42- + 2AgBr(s) → 2Ag(CN)2- + Ni2+ + 2Br-50.00 mL remaining solution was analyzed for its Br- content by potentiometry using a metallic electrode of the second kind. a) Write the cell notation of the potentiometric set-up with SCE as the reference electrode. b) Write the Nernst equation that describes the indicator electrode set-up. Ecell recorded in running the solution using the potentiometric set-up was Ecell = 0.0286 V. (E0Ag/AgBr = 0.095 V) c) Compute for Eind. d) Compute pBr in the 50.00 mL aliquot. e) Compute for % NaBr ( in the potentiometric technique).A sample weighing 0.6760 g that contains an unknown amount of BaCl₂ was completely dissolved in water and treated with an excess of sodium sulfate. Na2SO4 A precipitate of BaSO4 formed which was dried and weighed, yielding 0.4105 g. What percentage of the original sample was BaCl₂? 39.77 24.15 35.72 69.78 54.181.17g of indole, 5mL DMF, 1.7g POCl3 are used in the experiment. Calculate the limiting reagent and the theoretical yield.