An unknown concentration of sodium thiosulfate, Na2S2O3,Na2S2O3, is used to titrate a standardized solution of KIO3KIO3 with excess KIKI present. Suppose 16.05 mL16.05 mL of the Na2S2O3Na2S2O3 solution is required to titrate the iodine formed from 21.60 mL21.60 mL of 0.0115 M KIO3.0.0115 M KIO3. What is the molarity of the Na2S2O3Na2S2O3 solution?

Q: What mass of Ge(OH)4 could be neutralized by 70.00 ml of 0.2468 M H2SO4(aq) solution?

A: Amount of  H2SO4  = 70.0 ml × 0.2468 M            = 0.070 L × 0.2468 mol/L Where 1 ml solution =…

Q: A potassium permanganate solution is prepared by dissolving 4.68 g KMnO4 in water and diluting to…

A: Mass of KMnO4=4.68g  Molar Mass of KMnO4=158.034g/mol  No. of moles of KMnO,n=mass of KMnO4Molar…

Q: A solution of sodium hydroxide is standardized against potassium hydrogen phthalate (molecular mass…

A: Chemical reaction between sodium hydroxide and KHP as follows:

Q: A sample of an iron ore is dissolved in acid, and the iron is converted to Fe2+. The sample is then…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Mixtures of CaCl₂ and NaCl are used to melt ice on roads.A dissolved 1.9348-g sample of such a…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: 1).  Determine the concentration of a solution prepared by diluting 25.0 mL of a stock 0.188 M…

A: Since, this is multiple questions we are answering first question.

Q: A 0.2417g sample of a compound composed of C,H,O,Cl only, is burned in oxygen yielding 0.4964g of…

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Q: Mass of H2C2O4•2H2O = 1.3245 grams  Molar Mass of H2C2O4•2H2O = 126.07 Volume of H2C2O4•2H2O…

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Q: What is the percent vitamin C by mass in the tablet?

A: Molarity is defined as the moles of substance dissolved in 1 L solution. At the end point of the…

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A: The neutralization reactions involve the reactions between an acid and a base to produce its…

Q: A 0.750 g sample of finely ground limestone was placed in an Erlenmeyer flask, and 25.00 mL of 1.00…

A: Mass of sample = 0.750 grams Volume of HCl added = 25.0 mL Concentration of HCl added = 1M Volume of…

Q: 47.8 mg of silver nitrate (AGNO3, 169.9 g/mol) was dissolved in water to make 10.00 mL of solution.…

A: Given information is as follows: The mass of silver nitrate = 47.8 mg = 47.8×10-3 g The volume of…

Q: Write the balanced neutralization reaction that occurs between H2SO4H2SO4 and KOHKOH in aqueous…

A: The balanced neutralization reaction that occurs between sulfuric acid and potassium hydroxide in…

Q: The calcium in a 200 ml sample of water was determined by precipitating the cation as CaC204. The…

A: Given: Volume of sample of calcium = 200 mL Mass of empty crucible = 26.6002 g And mass of crucible…

Q: A solution of hydrogen peroxide,H2O2, is titrated with a solution of potassium permanganate, KMnO4.…

A: Number of moles of KMnO4​=MV/1000 ​=0.145×51.7/1000=7.4×10−3

Q: 1.000 g sample of an aluminum is dissolved and the sulfate precipitated as BaSO4. The precipitate…

A: Given data, Mass of sample = 1.0g Mass of precipitate (BaSO4) = 0.3486g Molar mass of BaSO4 =…

Q: A solution of HCl is prepared for titration of unknown Na2CO3 samples, by standardization with pure…

A: Mass of Na2CO3 = 0.4453 g Molar mass of Na2CO3 = 105.99 g/mole Mole of Na2CO3 =…

Q: A sample of an iron ore is dissolved in acid, and the iron is converted to Fe2+. The sample is then…

A: (a) Given, volume of MnO4- = 47.20 mL Molarity = 0.00240 mol/L So, Number of moles of…

Q: a. What is the molarity of a solution of KMnO4 if 40.00 ml will oxidize 0.3 g Na2C2O4 (134 g/mol)?…

A: GIVEN :- A) Molar mass of Na2C2O4 = 134 g/mol Given mass of Na2C2O4 = 0.3 g  Volume of KMnO4…

Q: 3.0 grams of limestone was dissolved in acid and converted into CaC2O4 and MgC2O4 compounds. The…

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Q: a) What mass of strontium nitrate (Sr(NO3)2) would be required to prepare 2.000 L of a 0.0180 M…

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Q: A 45.40% ferric oxide needed 0.7519 gram of an impure sample of iron ore. The analyte then required…

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Q: It takes 50.0 ml of 0.0500 M NazS203 solution to completely react with the iodine present in a 125.0…

A: Molarity of Na2S2O3 solution = 0.0500 M Volume of Na2S2O3 solution = 50.0 mL Volume of iodine =…

Q: A laboratory experiment calls for 0.125 M HNO3. What volume of 0.125 M HNO3 can be prepared from…

A: according to the dilution law ,M1V1=M2V2where,M1=initial molarityV1=initial volumeM2=desired…

Q: Ammonia (NH3, MM 17.031 g/mol) and hypobromite (OBr) react according to the following chemical…

A:

Q: The mercury in a 1.9458 g sample was precipitated as Hg5(IO6)2  by treatment with an excess of…

A: Given  mass of sample = 1.9458 g mass of precipitate Hg5(IO6)2 = 0.5218 g    Required data -…

Q: 1. H2SO4. The resulting solution contained excess acid and required 15.85 mL of 0.09850 M NaOH for…

A: The balanced equations are   CaCO3 + H2SO4 ----------> CaSO4 + CO2 + H2O    H2SO4 + 2 NaOH…

Q: A 25.00cm3 of potassium dichromate(K2Cr2O7) solution are added to an acidified aqueous solution of…

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Q: 1.3562 g of table salt was taken and dissolved in 250 mL of water. Calculate the % chloride amount…

A: The balanced equation for the reaction between NaCl and AgNO3 is   NaCl (aq) + AgNO3 (aq)…

Q: An aspirin sample, 0.62 grams, was titrated with 28 mL of 0.105 M NaOH solution. What is the percent…

A: 1 mol of NaOH react with 1 mol of aspirin. Given amount of aspirin = 0.62 g (Theoretical amount)  28…

Q: a sample of 0.2952 g iron ore is dissolved in acid, and the iron is converted to Fe2+. the sample is…

A: The ratio of mass of iron to the mass of sample multiply by 100 is known as percentage of iron.

Q: The anion EDTA42 strongly binds metal ions with a charge $2. How many grams of the reagent…

A: Introduction: Molarity and formality both defines the concentration of a solution. Molarity is…

Q: Samples containing oxalate ion can be titrated with solutions containing permanganate ion under…

A: From the given reaction we can see that, 2 moles of KMnO4 ( or MnO4-) will react with 5 moles of…

Q: weight of Mn

A:

Q: 43. In the preparation of Rochelle salt (MW = 282.83 g/mol), 7.2 grams of monohydrated Sodium…

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Q: A 1.4350-gram of KHP (actual formula = KHC8H4O4; molar mass = 204.22 g/mol) was dissolved in 50.00…

A: We have given that KHC8H4O4(aq)  +  NaOH(aq) →   NaKC8H4O4(aq)  +  H2O(l) Mass of KHP = 1.4350g…

Q: A 10.00 mL sample of a 0.0192 M solution of KIO3 is reacted with an excess of KI. It requires 26.68…

A: SOLUTION: Step 1: The reactions involved in the above titration are as follows:

Q: grams of Na,cO, (MW=106.g/mole) 2.5543 are placed in volumetric flask and dissolve in water to 500…

A: Answer

Q: A 0.879 g sample of a CaCl2·2H2O/K2C2O4·H2O solid salt mixture is dissolved in ~100mL of deionized…

A: Given:Mass of CaCl2.2H2O +mass of K2C2O4·H2O = 0.879 g.Mass of CaC2O4 = 0.284 g.Volume of water =…

Q: weight of Mn ore

A:

Q: The mass percent of chloride ion in a 25.00 mL sample of seawater was determined by titrating the…

A: 25. The balanced chemical equation  is  AgNO3 (aq) + Cl- (aq) → AgCl (aq) + NO3- (aq)

Q: A magnesium ribbon of mass 4.0g is placed in a dilute hydrochloric acid contained in beaker.…

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Q: The alcohol content in a 10.0 g sample of blood from a driver required 4.23 mL of 0.07654 M K2Cr2O7…

A: The volume of K2Cr2O7 = 4.23 mL                                       = 4.23×10-3 L Molarity of…

Q: i'he density of concentrated sulfuric acid containing 94% by mass of H2SO4 is 1.836 g/mL. Calculate…

A:

Q: A stock solution containing Mn2+ ions was prepared by dissolving 1.584 g pure manganese metal in…

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Q: Write the balanced NET ionic equation for the reaction when aqueous NiCl₂ and aqueous Na₂S are mixed…

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Q: A 1.4350-gram of KHP (actual formula = KHC8H4O4; molar mass = 204.22 g/mol) was dissolved in 50.00…

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Q: Dichromate reacts with aqueous iron (II) ion in acidic solution according to the balanced equation:…

A: During the titration, the moles of species K2Cr2O7 and FeSO4 is equivalent then this point will be…

Q: Iodine is made by the following reaction 2NaIO3+5NaHSO3->3NaHSO4+2Na2SO4+H2O+I2 a. Name the two…

A: Two reactants that participate in a reaction are sodium iodate (NaIO3) and Sodium bisulfite…

Q: A 1.362 g sample of an iron ore that contained FezOawas dissolved in acid and all of the iron was…

A: