Q: Basic solution Potassium permanganate, KMnO, is a powertul oxiding agent. The products ot a given…
A: Answer: Unbalanced redox reaction in basic medium is shown below: MnO4-(aq)+F-(aq)→MnO2(s)+F2(aq)
Q: Whatvolume of a 0.150 N KI solution is required to react in basic solution with34.1 mL of a 0.216 N…
A: Given: normality of KI = 0.150 N Normality of KMnO4 = 0.216 N And volume of KMnO4 solution = 34.1 mL…
Q: The surface water of a lake is at pH = 7.9 and contains 10-29 M dissolved inorganic carbon (i.e.,…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: A student prepares a stock solution of BaF2 by dissolving 50.00g of a BaF2 in 1.00L of water. An…
A: Given data,Mass of BaF2=50.00gVolume of water=1.00LMolarity of desired solution=0.100MVolume of…
Q: 42: Iron in a 1.260 Sample was precipi falen as the hdroxide and 1gnited to Form FezOg (0. 352, FW:…
A: #Q.2: Given the mass of the impure iron sample = 1.200 g Mass of solid Fe2O3(s) obtained = 0.352 g
Q: Be sure to anmer all parts. Industrially, vanadi metal which ised stel alloys, can be attained by…
A:
Q: Dats: O Hs hart of the ashurin eynthesies lab the Agostudents followeing. Stheir tenowledge. work…
A: (a) Calculate the moles of reactants, Moles = massmolar massMoles of C51H98O6 =231.5 g807.32…
Q: A 0.64 g sample containing KCI (mw = 74.6 ) is dissolved in 50mL of water and titrated to the…
A: At end point milliequivalents of KCl and milliequivalents of AgNO3 are equal.
Q: Calculate the hinal Concentaton of k' lag), CoO¢ (aq), Ba"cq prepared by addig o.100L of to 0.150L…
A: Dissolution of a salt refers to its dissociation into constituent ions. Completely soluble salts…
Q: Chromium often if electoplated the me tals and even on plartics to produce o whiny (cl- q94 g Imol)…
A:
Q: A mixt. weighing ) wt. of NogCOs ond KaCOg It is disasolued in woter and 1.000 g consistu of equal…
A: NOTE : it will be 17.36 mL of 1.075 acid added not 17.36 g Sol : Since the mass of K2CO3 and Na2CO3…
Q: ave mixed 100.0ML two Solutions initally af 24.0 c° in a coffee cop calaámeta when a Volume af 0.200…
A: Given that: Molarity of AgNO3 = 0.100 M Volume of AgNO3 = 100 mL…
Q: Please Answer my question from the picture im send... And note With same dengan.. God bless you ..…
A: The question is based on the concept of qualitative analysis. We have to distinguish the molecules…
Q: What weight of pyrite ore (impure FeS,) must be taken for analysis so that the BaSO, precipitate…
A: The mass of pyrite ore must be used for analysis is determined as,
Q: The phosphate in a 3.000-g sample of industrial detergent was precipitated by the addition of 1.000…
A: Given Mass of sample - 3 g Mass of AgNO3 = 1g Volume of KSCN = 18.23 ml Molarity of KSCN = 0.1337 M
Q: A sample of impure tin of mass 0.535 g is dissolved in strong acidto give a solution of Sn2+. The…
A: Redox reaction or Oxidation-reduction reaction: The reaction in which the oxidation and reduction…
Q: (a) How many grams of H2O2 are contained in a solution that requires for titration 14.05 mL of KMNO4…
A: Answer is as follows, hope it would help
Q: Show complete solutions for cach poblem. A seientiet tasked to extract Fe from was an suspension…
A: A) The balanced reactions are as follows: I) Fe2O3(s)+3SO3(g)→Fe2(SO4)3(aq)II)…
Q: Which among these is/are properties for the type of precipitate required in gravimetric analysis?…
A: The precipitate in gravimetric analysis should be Known composition and Large particles (…
Q: A 25.00cm of potassium dichromate(K,Cr,C solution aretadded to an acidified aqueous solution of…
A: Given, Volume of Potassium dichromate = 25.00 cm3 Volume of Na2S2O3 solution = 19.63 cm3…
Q: 1- Calculate +he equilibrium constant at 25 Č for the reaction 2H + Dzcg) = Haegs+ 2D" From the…
A: 2H+ + D2(g) --> H2(g) + 2D+ E°D+/D2= -3.4 mV = -3.4 × 10-3 V (1 mV = 10-3V) T= 25°C =25 +273 =…
Q: Show complete solutions for 2och poblem. A seientiet tasked to extract Fe from was an suspenion that…
A: a. reactions I Fe2O3 (aq) + 3SO3 (g) --> Fe2(SO4)3 (suspension) II Fe2(SO4)3 (suspension) +…
Q: ity of saturated solution of of BaSO4 is 3.48 x 10-4 S/m and the conductivity of pure water is 0.50…
A: The ions present in a solution contribute to the total conductivity of a solution. The Ksp for BaSO4…
Q: A 0.7120-g specimen of iron ore was dissolved and passed through a Jones reductor. Titration of the…
A: Moles of potassium permanganate will give moles of iron which have been oxidised from which weight…
Q: Whatvolume of a 0.150 N KI solution is required to react in basic solution with34.1 mL of a 0.216 N…
A: Since you have posted multiple questions, we are entitled to answer only 1 question.
Q: What is meant by non-stoichiometric defect? Ionic solids which have anionicvacancies due to metal…
A: Metal excess defect and metal deficiency defect are the two main classes of non-stoichiometric…
Q: A 0-3500g sample of Pmperse kI s treatedf with Or19428 of pure Kz Croy to expel att ef the diberatet…
A: Here we have to determine the percentage of purity of KI present in an impure sample KI using…
Q: A 750.0-mg sample of iron ore was dissolved in acid and treated to oxidize all the iron to ferric…
A: Normality of Na2S2O3 used = 0.07500 M Volume of Na2S2O3 used to titrate liberated iodine = 28.50 mL…
Q: Arsenic(III) oxide (As2O3) is available in pure form and is a useful (but carcinogenic) primary…
A: (a) Given that,Weight of KMnO4 is 3.209 g.The molar mass of KMnO4 is 158.034 g/mol.Volume of the…
Q: 1.5g sample contains sulfur S (aw=32) has been dissolved. The sulfur is precipitated as BaSO4 (mw =…
A: Given information: Mass of sample = 1.5 g Mass of precipitate = 0.65 g
Q: A sample of impure KI weighing 0.600 g is dissolved in water, the solution acidified, and 25.00 mL…
A:
Q: In the analysis of ammonium ferrous sulphate sample for the content of Fe use was made of a weighed…
A:
Q: A 0.64 g sample containing KCI ( mw = 74.6) is dissolved in 50mL of water and titrated to the…
A: The %W/W of KCl in the solution has to be given,
Q: In a cextain electasyai. 0:332g f zinc s depesited Cantainingsoy Solution. Calculate mat in a cell…
A:
Q: Considen the reach to produce hydrasone N,2 H NHs Caq) NA oc(a) H2 OtNgHag st Na Cl(a) a) Provide…
A:
Q: Prepore of Cr (NO3), Of the preparee Soluton. 3+ l00 ml ot z 0.075 m Co" solution out 9 HeO,…
A: Given, volume of solution = 100 mL concentration of Cr(NO3)3 = 0.075 M Now, 1 mole of…
Q: A bottle of liduckiime C ciBtaoNz Oz 236g|ma). used as da local artestheAichlontarns s0 mt 0t 1…
A: Given data set: Bottle of lidocaine contains 50 ml of a 4.1% solution. Density = 1 g/ml Molar mass…
Q: A 750.0-mg sample of iron ore was dissolved in acid and treated to oxidize all the iron to ferric…
A: A question based on quantitative analysis, which is to be accomplished.
Q: Calculate the solubility (in g/L) of Aluminum
A:
Q: 35.00 mL of a solution of KIO3 reacted with exactly 35.00 mL of a 0.1000 M solution of KI in acid…
A: a.) We would first write balanced chemical equation. The we would calculate moles of KI using the…
Q: The Sn in a 0.4352 g mineral specimen was reduced to the +2 state and titrated with 29.77 mL of…
A: Given: Mass of specimen = 0.4352 gm Volume of K2Cr2O7 = 29.77 ml Molarity of K2Cr2O7 = 0.01735 M…
Q: ure KI is treated with 0.1942g of pure K2CrO4 and the solution is boiled to expel all of the…
A: Given: Sample is 0.35 g impure KI Pure K2CrO4 is 0.1942 g
Q: In the analysis of 1.500 g sample of feldspar, a mixture of the chlorides of sodium and potassium…
A: Given: Mass of sample = 1.500 g. Mass of NaCl and KCl mixture formed from sample = 0.3450 g. And the…
Q: The Sn in a 0.4352 g mineral specimen was reduced to the +2 state and titrated with 29.77 mL of…
A: Redox titration is the titration used to determine the analyte concentration by carrying out a redox…
Q: In redox titrations, an auxiliary agent can be used to unify the oxidation states of analyte. The…
A: Volumetric titration is an analytical technique that determines the concentration or amount of…
Q: 1) a) What is i) a standard solution? ii)a reduction-oxidation (redox) reaction? b) A standard…
A: 1.(a) i) A standard solution is a solution which is prepared with great precision that the…
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- The arsenic in a 1.010 g sample of a pesticide was converted to H3AsO4 by suitable treatment. The acid was then neutralized, and exactly 40.00 mL of 0.06222M AgNO3 was added to precipitate the arsenic quantitatively as Ag3AsO4. The excess Ag in the filtrate and in the washings from theprecipitate was titrated with 10.76 mL of 0.1000MKSCN; the reaction wasAg+ + SCN-→ AgSCN(s) Calculate the percent AsO3 in the sample.One litre of a saturated aqueous solution of Ag2SO4 (MW = 311.79 g mol- 1) at 25 °C is evaporated to dryness. 4.844 g of Ag2SO4 residue was produced. What is the solubility product (Ksp)?One gram of sodium hydroxide (NaOH) is used to adjust the pH of an aqueous solution (200 gallons) thatcontains 10 lbs of finely ground rhodochrosite (MnCO3) ore. Does the NaOH raise or lower the solutionpH? What is the amount of NaOH added in lbs/ton? What is the molarity (mol/l) of the system? Assumingthe NaOH is completely soluble and the system is at room temperature, what is the solid-to-liquid ratio(wt%) of the system?
- For titration for determination of Chloride, 0.05 AgNO3 and NaCl with a 5% (w/v) K2CrO4 indicator, what is the % (w/w) Cl- using the atomic weight for Chlorine. Data below: Primary standard weight 0.1173g , 0.1056g , and 0.1049g Vol of titrant delivered 35.47mL , 31.75mL, and 31.04mL Uknown Chloride mass 0.1527g, 0.1442g, and 0.1337g Vol of titrant delivered 40.00mL ,37.68mL ,and 34.96 mLThe arsenic in a 1.203-g sample of a pesticide was converted to H3AsO4 by suitable treatment. The acid was then neutralized, and 40.00 mL of 0.05871 M AgNO3 was added to precipitate the arsenic quantitatively as Ag3AsO4. The excess Ag+ in the filtrate and in the washings from the precipitate was titrated with 9.63 mL of 0.1000 M KSCN, and the reaction was. Find the percentage of As2O3 in the sample.The concentration of CO in the air can be determined by passing a known volume of air through a tube containing I2O5, resulting in the formation of CO2 and I2. I2 is removed from the tube by distillation and collected in a solution containing excess KI, producing I3-. I3- is titrated with a standard solution of Na2S2O3. A 4.79 L air sample was sampled as described here, requiring 7.17 ml of 0.00329 M Na2S2O3 to reach the endpoint in a typical analysis. If the density of the air is 1.23×10^-3 g/ml, what is the amount of CO in the air in ppm? (CO: 28 g/ml)
- Write the balance equation of aqueous Pb(ClO3)2 with NaI. Include phases.A piece of an unknown weighing 12.50is placed in 49.7cm of water in a cylinder. The water level increases to 69.0cm3. whats the calculated value for the drnsity of the solid in g ml-1calculate the mass of Sn when 50 mL of a sample containing Sn2+ is titrated with 42.00 mL of 0.0150M MnO4- to reach endpoint
- 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.Arsenic(III) oxide (As2O3) is available in pure form and is a useful (but carcinogenic) primary standard for oxidizing agents such as MnO4-. The As2O3 is dissolved in base and then titrated with MnO4- in acidic solution. A small amount of iodide (I - ) or iodate (IO3-) is used to catalyze the reaction between H3AsO3 and MnO4-. As2O3 + 4 OH - 2 HAsO32- + H2OHAsO32- + 2 H+ H3AsO35 H3AsO3 + 2 MnO4- + 6 H+ 5 H3AsO4 + 2 Mn2+ + 3 H2O (a) A 3.209 g aliquot of KMnO4 (FM 158.034) was dissolved in 1.000 L of water, heated to cause any reactions with impurities to occur, cooled and filtered. What is the theoretical molarity of this solution if no MnO4- was consumed by impurities? M(b) What mass of As2O3 (FM 197.84) would be just sufficient to react with 25.00 mL of the KMnO4 solution in part (a)? g(c) It was found that 0.146 8 g of As2O3 required 29.98 mL of KMnO4 solution for the faint color of unreacted MnO4- to appear. In a blank titration, 0.03 mL of MnO4- was required to produce enough…0.1724g of a mineral containing MnO₂ was dissolved and then treated with excess iodide according to the following unbalanced reaction: MnO2(s) + H+ → Mn²+ + I2 + H₂O The I₂ released was titrated with a solution of Na₂S2O3 0.07320 mol/L, requiring 14.65 mL to reach the point end of degree a) Determine the percentage of MnO₂ in the ore. b) When iodine solutions are used as titrants these are prepared by dissolving 1₂ in concentrated KI. Explain the reason for the need for KI in the preparation of these solutions?
