A 10.0 g sample of KCgH5O4 (A)(MW = 204.23 g A) was titrated with 50.00 mL of KOH (B) to endpoint. What is the molarity of the KOH solution? Use A and B to show compounds in the working. Given: KC3H5O4 (s) + KOH (aq) ----> K2C3H4O4 (aq) + H2O (1) 3. 7._ 1. 10.0 g A x 2. 5. 6. = 9. . 4. 8. 1.--
Q: A Medical Technology student was given a capsule of a multivitamins and she was asked to determine…
A: Given in the question, The two balanced reaction, KIO3 + 5KI + 6H+ → 3I2 + 6K+ + 3H2O C6H8O6 + I2 →…
Q: 3- Describe the preparation of 400 ml. of 6 F H,PO, from the commercial solution which is 85% (w/w)…
A: We will first calculate the molar concentration of the concentrated reagent, and then calculate the…
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: The ascorbic acid, CH;Os (176.124 g/mmol) content of a bottle of peach juice containing 2.50 L was…
A: In the given problem we need to find out 1. Numver of the mili moles of ascorbic acid present in the…
Q: One litre of a saturated aqueous solution of Ag2SO4 (MW = 311.79 g mol- 1) at 25 °C is evaporated to…
A:
Q: The arsenic in a 1.010 g sample of a pesticide was converted to H3AsO4 by suitable treatment. The…
A: step: 1 of 3 We have to calculate the percentage of in 1.010 g pesticide. Reaction of arsenic…
Q: The arsenic in a 1.203-g sample was converted to H,AsO4 by suitable treatment. The acid was then…
A: Given data: Weight of pesticide = 1. 203 g Pesticide →H3AsO4→AgNO3 Ag3AsO4 Ag++SCN- →AgSCN(s)…
Q: What is the concentration of the undiluted chloride solution? Round off to three (3) significant…
A: Given that - Mass of sample containing chlorides ions = 400 g Molar weight of chloride ion = 35.45…
Q: In standardizing a solution of NaOH against 1.431g of KHC8H4O4, the analyst uses 35.50 mL of the…
A: A question based on concentration terms that is to be accomplished.
Q: describe how you can prepare 500mL of 0.10 M Fe2O3 (159.69g/mol) from the primary-standard-grade…
A: Calculate the number of moles of Fe2O3: 1 mL = 0.001 L
Q: Q1. Dissolved 0.273 grams of pure sodium oxalate (Na:C.O,) in distilled water and added sulfuric…
A: The question is based on the concept of titrations. We are titrating Sodium oxalate with potassium…
Q: The alcohol content of a certain low alcohol beer was determined using volumetric analysis. In this…
A:
Q: A shipment of containing NaOH (40 g/mol) and Na2CO3 (106 g/mol) was declared to contain less than 10…
A: #(a): Given the shipment contains a mixture of NaOH (40 g/mol) and Na2CO3 (106 g/mol).
Q: Q3/A 0.80868 gm sample of a commercial phosphate detergent was ignited at a red heat to destroy the…
A: This question is from Analytical Chemistry. In this question we will find out the percentage of P,…
Q: Evaluate
A: Fluoride ions serve as the limiting reagent in the chemical reaction. Two moles of fluoride ions…
Q: In one trial determination of the concentration of NaOCl in the diluted bleach sample, 10.00 mL of…
A: The reaction taking place is,
Q: 4. Silver arsenate, Ag,AsO4, is very insoluble. What weight of Ag,AsO4 precipitate forms when 27.00…
A:
Q: Step 1 :4.9668 g of Na2SO3 was dissolved in 30ml distilled water by heating. Step 2 : Then 6.0895g…
A: In a reaction, the interaction between the two reactants result in the formation of product. The…
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: In a lab, you diluted a sample of bleach to 1/10 concentration in a 250 vol. flask. Then…
A: Given: Volume of diluted bleach (V1) = 250 mL molarity of sodium thiosulfate (M1) = 0.1215 M diluted…
Q: Calculate the solubility of BaSO4 with the Ksp = 1.08 x 10-10 ,in an aqueous solution with I =…
A: The solution is having BaSO4 and I- The solubility reaction of BaSO4 is BaSO4 (s) ------> Ba2+…
Q: M is a cation which exists as a nitrate compound in an aqueous solution. Part of this solution is…
A: A question based on qualitative analysis of cation that is to be accomplished.
Q: Step 1 :4.9668 g of Na2SO3 was dissolved in 30ml distilled water by heating. Step 2 : Then 6.0895g…
A: After seeing the reaction and all the components added in steps we see.
Q: The arsenic in a 1.203-g sample of a pesticide was converted to H₃AsO₄ by suitable treatment. The…
A:
Q: a) What mass of Fe(NH4)2(SO4)2•2H2O(s) is required to prepare a 500 mL solution containing 100 ppm…
A:
Q: Using basic conditions, MnO4- can be used as titrant for the analysis of Mn2+, with both the analyte…
A: A question based on quantitative analysis, which is to be accomplished.
Q: A 15.00 g sample containing mixed alkali and other inert components was dissolved and diluted to 300…
A:
Q: The arsenic in a 1.208-g sample of a pesticide was converted to H3 AsO4 by suitable treatment. The…
A:
Q: Does the NaOH raise or lower the solution pH? What is the amount of NaOH added in lbs/ton? What is…
A: Volume of solution = 200 gallons 1 gallon = 0.0315 ton So, Volume = 6.3 ton We have added NaOH to…
Q: Orthophosphate (PO4) in river sediment sample is determined by weighing ammonium phosphomolybdate,…
A: Gravimetric factor (G.F.) is the weight of analyte per unit mass of precipitate. It is the ratio of…
Q: Calculate the M of the malonic in the sample.
A: 20 mL aliquot of malonic acid treated with 10 mL of 0.25 M Ce4+ Excess Ce4+ titrated with Fe2+…
Q: Describe the preparation of: (a) 200mL of 1.00% (w/v) Zn(NO3)2 from a 0.175 M solution of Zn(NO3)2…
A: Since you have posted multiple questions, we are entitled to answer the first only. 1A) Given:…
Q: 1- The mercury present in a sample with a mass equal to 0.8142 g was precipitated with an excess of…
A: Given information, Mass sample of mercury = 0.8142 g Mass of product i.e. Hg5(IO6)2 = 0.4114 g
Q: An aqueous ethylene glycol (HOCH₂CH₂OH, FW = 62.07 g/mol) solution with a mass of 214.3 mg is…
A:
Q: A mixture contains Na2CO3, NaOH and inert matter. A sample weighing 1.500 g requires 28.85 ml of…
A: Reaction of NaOH with HCl NaOH + HCl -----> NaCl + H2O End point will be achieved using…
Q: For titration for determination of Chloride, 0.05 AgNO3 and NaCl with a 5% (w/v) K2CrO4 indicator,…
A: In the determination of chloride ion concentration by Mohr's method, NaCl is used as the primary…
Q: A saturated solution of magnesium hydroxide is prepared and the excess solid magneisum hydorixed is…
A:
Q: Perform the necessary calculations for the preparation of: a) 200 mL of AgNO3 0.50 M from the solid…
A: a) Given: Volume = 200 mL Molarity = 0.5 M Molecular weight of silver nitrate = 169.87 g/mol.…
Q: A solution was prepared by dissolving 1310 mg of K3 Fe (CN), (329.2 g/mol) in sufficient water to…
A: Note : I have been asked to solve part B only.
Q: 0.1 g of the mixture of na2so4 and k2so4 is taken and 100 ml of solution is prepared. 10 ml of this…
A:
Q: What mass of solid Lanthanum (III) oxalate nonahydrate { La2 ( C2O4 )3 ∙ 9 H2O } can be obtained…
A:
Q: Manganese(II) sulfide is one of the compounds found inthe nodules on the ocean floor that may…
A: Given data contains, The solubility of MnS is 4.7×10-4 g/100 mL. The dissociation equation for…
Q: A sample of material contains the components NaOH, Na2CO3, NaHCO3 , or possible mixtures of these.…
A: Weight of sample = 1 g normality of acid = 1.038 N
Q: A volume of 40.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of…
A: In case of both , neutralization reaction and redox reaction we can determine how many moles of each…
Q: The arsenic in a 1.273-g sample of a pesticide was converted to H3 AsO4 by suitable treatment. The…
A:
Q: A 25.0 ml solution containing acidified Na;C,04 requires 15.0 mL of 0.0500 M KMNO, solution to reach…
A:
Q: C 640 mL of a solution that is 0.0280 M in K*, starting with solid K4 Fe (CN), - Dissolve g K4 Fe…
A: Here we have to calculate amount of reagent and solvent required to make above solution-
Q: A 370.00 mL solution of 0.00185 M A3B4 is added to a 390.00 mL solution of 0.00100 M C3D4. What is…
A: Assuming the salts A3B4 and C3D4 are soluble in water completely as no information is given about…
Q: concentration and pH of the H2SO4 solution.
A:
Q: A vinegar solution was prepared by diluting 25.00 mL of vinegar to 250.0 mL. From this solution,…
A: Please find the below attachments. please rate....................
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- An aqueous waste stream that has a maximum concentrationof 0.50 M H₂SO₄ (d=1.030 g/mL at 25C) will be neutralized by controlled addition of 40% caustic soda (NaOH; d=1.430 g/L) before it goes to the process sewer and then to the chemical plant waste treatment facility. However, a safety re-view finds that the waste stream could meet a small stream of animmiscible organic compound, which could form a flammable vapor in air at 40.°C. The maximum temperature of the causticsoda and the waste stream is 31°C. Could the temperature in-crease due to the heat of neutralization cause the vapor to ex-plode? Assume the specific heat capacity of each solution is 4.184 J/gK.KMnO4 and Na2C2O4 solutions were used in the reactions that took place in a back titration to determine the amount of H2O2 in a sample. Calculate the concentration of H2O2 in the sample (w / v) as% by making appropriate assumptions for the volumes and normality of all these solutions.A 0.512 g sample of a commercial phosphate detergent was ignited at a red heat to destroy the organic matter. The residue was taken up in hot HCl, which converted the P to H3PO4. The phosphate was precipitated as MgNH4PO4.6H2O by addition of Mg2+ followed by aqueous NH3. After being filtered and washed the precipitate was converted to Mg2P2O7 by ignition at 1000 0C and the residue weighed 0.1151g. (a) What is the Gravimetric Factor to convert Mg2P2O7 to P? (b) Calculate the percent P in the sample could you type it out please
- An impure sample of Na3PO3 weighing 0.1392 g was dissolved in 25 mL of water. A solution containing 50 mL of 3% w/v mercury(II) chloride, 20 mL of 10% w/v sodium acetate, and 5 mL of glacial acetic acid was then prepared. The solution containing the phosphite was added dropwise to the second solution, oxidizing PO3^3– to PO4^3– and precipitating Hg2Cl2. After digesting, filtering, and rinsing, the precipitated Hg2Cl2 was found to weigh 0.4320 g. Report the purity of the original sample as %w/w Na3PO3. Moles Na3PO3 = moles Hg2Cl2A sample of feldspar weighing 1.500g is decomposed, and eventually there is obtained a mixture of KCl and NaCl weighing 0.1801 g. These chlorides are dissolved in H2O, a 50-mL pipetful of 0.08333 N AGNO3 is added, and the precipitate is filtered off. The filtrate requires 16.47 mL of 0.1000N KCNS, with ferric alum as indicator. Calculate the percentage of K2O in the silicate.Q1. Dissolved 0.273 grams of pure sodium oxalate (Na,C,O.) in distilled water and added sulfuric acid and titration the solution at 70 ° C by using 42.68 ml of KMNO, solution and has exceeded end point limits by using 1.46 ml of standard oxalic acid (H; C;O.) with 0.1024 N. Calculate the normlity of KMN0.. Note that the molecular weight of sodium oxalate (Na,C,O.) = 134 and its equivalent weight = 67
- Gravimetric analysis of Fe3O4 (MW = 232 g/mole) may be undertaken with the following reactions: Fe3O4 → Fe2O3 → Fe (OH)3. Weight of sample containing 8.00% Fe3O4 that must be taken to obtain a precipitate of Fe(OH)3 (MW = 107 g/mole) that weighs 150 mg is . a. 0.108 g b. 0.325 g c. 1.355 g d. 4.065 g Amount of Fe2O3 (MW = 160 g/mole) from which 150 mg of Fe(OH)3 (MW = 107 g/mole) may be obtained is . a. 0.112 g b. 0.224 g c. 0.448 g d. none of the other choicesCalculate the % relative error in solubility by using concentrations instead of activitiesfor Fe(OH)2 in 0.0500 M KNO3 (give the source for thermodynamic solubility).A empty evaporating dish weighs 30.56g. You place 20.0mL of an NaCl solution in the dish plus the solution weighs 53.31g. You evaporatorate the solution to dryness ant find that the evaporatoring dish plus the residue weighs 32.25g. What is the w/v%? What is the w/w%? What is the molarity?
- A 0.2500-g of dry CaCO3 was completely dissolved into a solution of 5-mL conc. HCl and 50-mL distilled water in an erlemeyer flask. The resulting solution was boiled for 5 minutes to expel CO2 from the reaction, and then it was cooled to room temperature and the solution was transferred in a 500-mL volumetric flask filled to volume by rinsing the erlenmeyer flask and combining all the washings to fill the mark. A 5.0-mL aliquot of the CaCl2 solution was taken from the orignal solution and was transferred into an erlenmeyer flask with 10-mL NH3 buffer, 20-mL distilled water, and 5 gtts of EBT. The solution consumed 4.96 mL of an EDTA solution. MW: CaCO3 = 100.1 Compute for the N EDTA solution. 0.0053 N 0.0531 N 0.5313 N None of the choicesCalcium in a 5.00 mL urine sample was precipitated, redissolved and required 16.15 mL of 0.1157 N KMnO4. Calculate the % (w/v) of calcium in the urine.What is the concentration of ions in the soil solution after fertilizer application? Suppose that 122 pounds of K+ were applied per acre, then a gentle rain soaked the top 10 inches of soil to field capacity, which for the given soil was about 16% water by volume. If the K+ was applied as KCl, it is plausible that it all dissolved and distributed relatively uniformly with the infiltrating water. If so, then what was the K+ concentration in the soil solution in mol K+/L solution? Note that the volume can be computed like we do for an acre-furrow-slice (AFS), as area times depth. This is going to be a relatively small number, so please report your answer in mol K+/L solution to at least 5 decimal places.
