0.5131-g sample containing KBr is dissolved in 50 mL distilled water. Titrating with 0.04614 M AgNO3 requires 25.13 mL to reach the Mohr endpoint. A blank titration requires 0.65 mL to reach the same endpoint. Report the % (w/w) KBr in the sample. [Ans. 26.19 % (w /w

Q: 3. A 0.1093-g sample of impure Na2CO3 was analyzed by the Volhard method. After adding 50.00 mL of…

A: Given , mass of impure Na2CO3=0.1093 gVolume of AgNO3= 50.00 mLConcentration of AgNO3=0.06911…

Q: 0.5131-g sample containing KBr is dissolved in 50 mL of distilled water. Titrating with 0.04614 M…

A: The reaction will be: KBr(aq) + AgNO₃(aq) → KNO₃(aq) + AgBr(s) From the reaction- 1 mole of KBr…

Q: A mixture containing only KCl and NaBr is analyzed by the Mohr method. A 0.3172-g sample is…

A: Concentration: It is the ratio of number of moles of solute dissolved in per litre of solution.

Q: A 25.00 mL solution of 0.03280 M NazCO3 is titrated with 0.02560 M Ba(NO3)2. Calculate pBa?*…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: A blank titration requires 0.65 mL to reach the same end point. Report the %w/w KBr in the sample.

A: The reaction will be: KBr(aq) + AgNO₃(aq) → KNO₃(aq) + AgBr(s) From the reaction- 1 mole of KBr…

Q: 5. A 0.1093-g sample of impure NażCO3 was analyzed by the Volhard method. After adding 50.00 mL of…

A: Given: Mass of impure sample = 0.1093 g Concentration of  of AgNO3 = 0.06911 M Volume of AgNO3 =…

Q: A 47.00 ml aliquot from a 0.490 L solution that contains 0.410 g of MnSO, (MW = 151.00 g/mol)…

A:

Q: An unknown 8.00 ml sample containing a certain concentration of tin Sn*2 (118.7 g/mol), was treated…

A:

Q: Calculate the purity of the Na2CO3 sample.

A: Solution: In Volhard's method we titrate excess of Ag+ ions with SCN- ion with ferric (Fe+3) ion as…

Q: Sulfur containing compound weighing 4.8670 grams was digested and purified to form H,SO,. A 25.00-mL…

A:

Q: A 1.0 g sample containing urea was dissolved in water and diluted in a 100.00 mL volumetric flask.…

A: On reaction with sulphuric acid, urea produces ammonia. One mole of urea produces one mole of urea.…

Q: A 1.00 g sample of NaOH which has been exposed to the air  for  some time is dissolve in water and…

A:

Q: Molarity of Na2S2O3 (stock solution).    0.100 M Volume of diluted bleach titrated (taken from the…

A: Solution: For a given titration reaction the stoichiometric relation plays important role, as from…

Q: A 0.1093-g sample of impure Na2CO3 was analyzed by the Volhard method. After adding 50.00 mL of…

A:

Q: Titration of 0.2121 g of primary standard Na C,0, (133.999 g/mol) required 21.66 mL of KMnO,…

A: Given that:  Mass of Na2C2O4 = 0.2121g Molar mass of Na2C2O4 = 133.999g/mol Moles of Na2C2O4 =…

Q: A sample is analyzed for chloride by the Volhard method. From the following data, calculate the…

A: Calculation of no. of mol of KSCN: n=Molarity×Volume=0.0930 mol/L×13.20×10-3 L=1.2276×10-3 mol…

Q: 2.4414 g sample containing KCl, K2SO4and inert materials was dissolved in sufficient water to give…

A: Given: Mass of sample = 2.4414 g. This sample contains KCl, K2SO4 and inert materials. The volume of…

Q: Excess solid Ni(OH)2 was added to water and the resulting solution was allowed to stand for several…

A: Given: The volume of HCl (hydrochloric acid) solution = 5.98 mL = 0.00598 L The molarity of HCl…

Q: A salt sample was analyzed for its purity. A 0.5000 g sample was dissolved in water and diluted to…

A: The number of moles of a substance is defined as the mass of the given substance upon its molar…

Q: .A sample of alfalfa meal weighing 2.0 g is analyzed by Kjeldahl method for the percentage of…

A:

Q: Mass of NaOCl in commercial bleach titrated. ?

A: Moles help to calculate mass

Q: 2.4414 g sample containing KCl, K2SO4and inert materials was dissolved in sufficient water to give…

A: Mohr method is the method to determine the chloride ion concentration of a solution. This is done by…

Q: A sodium thiosulfate solution is standardized using pure copper as the primary standard. A sample of…

A: Given data,                                 Mass of Cu = 0.2624 g Volume of sodium thiosulfate =…

Q: A 0.4140-g sample of impure Na2CO3 (FW 105.99) was analyzed by the Volhard method. After adding…

A: Given that -  Mass of impure Na2CO3 = 0.4140 g  Formula weight of Na2CO3 = 105.99  Volume of AgNO3 =…

Q: A 1.250 g sample of cheese was subjected to KKjeldahl analysis to determine the amount of protein.…

A: Volume of HCl      = 50 mL Molarity of HCl     = 0.1050 M Volume of NaOH  = 21.65 mL Molarity of…

Q: A 50.0 mL solution of CI (A.wt = 35.5 g/mol) was treated with 65.0 mL of 0.50 M AGNO3. AgCls) was…

A: 1) Volume of Cl- solution=50 mL 2) Concentration of [AgNO3]=0.5M MAgNO3=0.0005 mol/L 3) Colume of…

Q: Titration of 0.2342 g of pure Na,C,0, (134.0 g/mol) required 33.45 ml of KMNO, solution according to…

A:

Q: The standardization of a KSCN solution against 0.3341 g of primary standard grade AgNO3 (M.M.…

A: standardization of KSCN  by AgNO3 an aliqout of the sample of KSCN is taken and titrated against…

Q: A 25.0025.00 mL solution of 0.088300.08830 M NaINaI is titrated with 0.051500.05150 M AgNO3AgNO3.…

A: Consider dissolution of AgI as AgI (s) Ag+(aq) + I -(aq)   For the above reaction, Ksp =[ Ag+ ][I-]…

Q: The thiourea in a 1.455-g sample of organic material was extracted into a dilute H2SO4 solution and…

A: The given reaction is as follows:      4NH22CS + Hg2+ →NH22CS4Hg2+ Calculation of number of moles of…

Q: Moles of OCl– in the diluted bleach titrated. ?

A: Iodine and hypochlorite play role in titration Moles of iodine play role in hypochlorite ions

Q: A 0.1093-g sample of impure Na2CO3 was analyzed by the Volhard Method. After adding 50.00 mL of…

A: Reaction taking place is, Reaction of KSCN with excess AgNO3 is,

Q: A 0.4482 g sample of impure NaCN is titrated with 0.1018 M AgNO3 requiring 39.68 mL to reach the end…

A: The reaction is, NaCN + AgNO3 ---> AgCN + NaNO3 From the reaction, we can conclude that 1 mol of…

Q: 23A 0.20 g sample of primary standard Na2C204 (134 g/mol) needed 37.22 mL of of KMNO4 solution to…

A: 1) Mass of Na2C2O4 = 0.2g Molar mass of Na2C2O4 = 134g/mol Volume  of KMnO4 = 37.22ml Molarity of…

Q: You want to measure the concentration of carbonate (CO32-) in a mildly basic solution by using an…

A: The concentration and the number of moles of Ca2+ ion in the filtered solution is;…

Q: A 0.5264-g sample containing KBr is dissolved in 50 mL distilled water. Titrating with 0.04738 M…

A: The % (w/w) KBr (MM = 119.0) in the sample has to be reported,

Q: A mixture containing iodide is analyzed by the Volhard method. 0.6712 g of the sample is reacted…

A: mass of the sample = 0.6712 g Concentration of AgNO3=0.05619 M Volume of AgNO3=50.00mL Concentration…

Q: A 3.00-L sample of urban air was bubbled through a solution containing 50.00 mL of 0.0116 M Ba(OH)2,…

A: Moles of Ba(OH)2 reacted to produce BaCO3 = Initial moles of Ba(OH)2 - Moles used in Titration with…

Q: Titration of 50.00 mL of 0.04715 M Na2C2O4 required 39.25 mL of a potassium permanganate solution.…

A: Given,                Volume of Na2C2O4 = 50.00 mL              Concentration of Na2C2O4 = 0.04715 M…

Q: 175.0 mL of 0.2015 M nitric acid was added to 1.4213 g of impure calcium carbonate sample. The…

A: The balanced equations are   2 HNO3 + CaCO3 ----------> Ca(NO3)2 + CO2 + H2O   NaOH + HNO3…

Q: DETERMINE THE THEORETICAL VOLUME OF TITRANT (V theoretical) WITH THE QUANTITATIVE DETERMINATION OF…

A: Solutions- Given data-  About 0.25 g (precise charge) of the substance is dissolved in a mixture of…

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: Titration of 0.2121 g of primary standard Na, C,04 (133.999 g/mol) required 21.66 mL of KMnO4…

A: Given balanced equation of reaction of Na2C2O4 with KMnO4:  2 MnO4- + 5 C2O42- + 16 H+ → 2 Mn2+ + 10…

Q: 0.9350g of an impure solid containing oxalic acid was dissolved and diluted to 100.00mL. From this…

A:

Q: A sample of alfalfa meal weighing 2.0 g is  analyzed by Kjeldahl method for the  percentage of…

A: Kjeldahl analysis is used for the quantitative determination of N in protein and other samples.

Q: 2. A 0.5131-g sample containing KBr is dissolved in 50 mL distilled water. Titrating with 0.04614 M…

A: Given Mass of sample = 0.5131 g Dissolved in 50ml of water M (AgNO3) = 0.04614 Volume = 25.13 ml At…

Q: Sulfur containing compound weighing 4.8670 grams was digested and purified to form H,SO4. A 25.00-mL…

A: Moles = Molarity * Volume (L) Mass = Moles * Molar mass

Q: A 50.00-mL aliquot of a 0.100 0 M I− solution was titrated with 0.100 0 M AgNO3. Calculate pAg+ when…

A: Precipitation titration A reaction in which the titrant and analyte form a precipitate is called…

Q: 3 L contaminated air 50 mL 0.0116 M in an air pollution analysis Carbon dioxide (CO2) BaCO3 is…

A: ppm means parts per million. when concentration is very less, we usually use ppm to denote it.  to…