Ascorbic acid (Vitamin C, MW = 176.126g/mol) is a reducing agent, reacting as follows: C6H8O6  C6H6O6 + 2H+ + 2e- It can be determined by oxidation with a standard solution of I2. A 200.0-mL sample of a citrus fruit drink is acidified, and 10.00mL of 0.0500 M I2 is added. After the reaction is complete the excess I2 is titrated with 38.62 mL of 0.0120 M Na2S2O3 . Calculate the number of milligrams of ascorbic acid per milliliter of fruit drink. I2 +2e  2I- I2 + 2Na2S2O3  2NaI + Na2S4O6

Q: 7. For the complete redox reactions given here, (i) break down each reaction into its…

A:

Q: Nitric acid, a major industrial and laboratory acid, is produced commercially by the multistep…

A: Given: The balanced chemical reactions are: Step1: 4NH3g + 5O2g → 4NOg + 6H2OlStep2: 2NOg + O2g →…

Q: How many grams of NaCl are required to precipitate most of the Ag ions from 1.5010m of 0.0467 M…

A: The given chemical equation: AgNO3 + NaCl → AgCl + NaNO3 1 mol      1 mol     1 mol    1 mol…

Q: What is the oxidation number of iron, Fe, in Fe(NH4)2(SO4)2?

A: Oxidation state tells about the number electrons lost or gain by an atom to form a chemical bond…

Q: What quantity of electric current is required to deposit 0.750 g of Pt(s) from a solution containing…

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

Q: During the demonstration, before each metal was added to the water, a drop of an acid-base…

A: Metals which reacts with water forms basic solution.

Q: The metathesis reaction between sodium carbonate adn iron (III) nitrate is shown below 3NA2CO3 (aq)…

A: Given - Reaction  3Na2CO3 (aq) + 2Fe(NO3)3 (aq) ----> Fe2(Co3)3 (s) + 6 NaNO3 (aq) 0.300 M…

Q: A5.85% (w/w) Fe(NO. )g (241.86 g/ mol) solution has a density of 1.059 g/mL. Calculate 1, the molar…

A:

Q: 7. Assume solid Glucose (C¢H1;O6) and Oxygen gas are the starting substances (reactants) in the…

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

Q: A sample of iron ore weighing 0.2812 g was dissolved in an excess of a dilute acid solution. All the…

A: The volume of the given solution is 21.70 mL which is equal to 0.0217 L. The number of moles of…

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A: Mass of ore = 5.45 g Molecular weight of Sb = 121.76 g/mol

Q: Identify the oxidized substance, the reduced substance, the oxidizing agent, and the reducing agent…

A: Oxidation = When the substance in the reaction  loss electrons then this is called as oxidation . (…

Q: 2. Hydrochloric acid (HCI) can dissolve solid iron according to the following reaction: Fe (s) + 2…

A: According to the question, Hydrochloric acid(HCl) can dissolve in solid iron as per the following…

Q: A 1.0 g sample of a substance of unknown molar mass requires 40 ml of standard solution for…

A:

Q: Which of the following reactions are REDOX? A 2 Na + Cl₂ → 2 NaCl B CH4+2O2 → CO2 + 2H2O C Fe2O3 +3…

A: Oxidation = increase in the oxidation state  Reduction = decrease in the oxidation state  Redox…

Q: What is the normality of a K,Cr20, solution prepared by dissolving 5.00 g of K2Cr20, in 200 mL of…

A: Given unbalanced equation is  Cr2O7 -2  +  SO3-2  →  Cr+3  + SO4-2  Balance the reaction 1 Cr2O7…

Q: The manganese content in an ore sample by dissolving it and oxidizing the manganese contains about…

A: Dilution equation, C1V1=C2V2 This is used to calculate the dilution required to prepare a certain…

Q: The chemotherapy drug cis-platin, Pt(NH3)2Cl2, is prepared via the  chemical reaction shown below.…

A: Solution Volume of NH3 required is 12.5 ml

Q: 7. Silver nitrate breaks into silver ions and nitrate ions in water. AGNO3 (s) + H2O (I) -> Ag (aq)…

A: From the given reaction , we can see that nitrate ion remain as aqueous ions only and do not…

Q: Potassium permanganate solutions used in oxidation-reduction titrations are often standardized…

A:

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

A:

Q: 7. Assume solid Glucose (C,H1;O6) and Oxygen gas are the starting substances (reactants) in the…

A: As you have posted a question with multiple parts, we will solve the first three subparts for you.…

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

A:

Q: A sample of a tin containing ore is dissolved in sulfuric acid. The redox titration reaches the…

A:

Q: A 0.5g sample of Silver nitrate was dissolved in 350 ml water was mixed with 0.25g potassium bromate…

A: Interpretation -  When A 0.5g sample of Silver nitrate was dissolved in 350 ml water was mixed with…

Q: Acid-Base & Redox Titration a. Calculate the volume in mL of a 1.420 M sodium hydroxide solution…

A:

Q: A 55.0 mL sample of 0.102M potassium sulfate solution is mixed with 35.0 mL of a 0.114M lead(II)…

A: The given balanced equation is given along with the calculation of moles as follows,

Q: Be sure to answer all parts. Oxalic acid (H;C,0) is present in many plants and vegetables. (a)…

A: Any reaction comprising reduction half-reaction and also oxidation half-reaction gets named "redox…

Q: The chloride (CI) content of water from a swimming pool was determined using 10.0-mL sample of pool…

A: Given, Volume of sample taken - 10.0 mL Mass of AgCl precipitate formed - 0.4368 g Atomic mass of…

Q: 58. The iron content of hemoglobin is determined by de- stroying the hemoglobin molecule and…

A: The solution concentration in a redox titration can be calculated using the following formula;…

Q: What is the normality of a K2Cr20, (294.2 g/mol) solution prepared by dissolving 5.00 g of K2Cr207…

A: Normality = Molarity × Molar mass × [Equivalent mass]-1  ….(1) Balanced equation is K2Cr2O7 + 3H2SO3…

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A: The given reaction is : The oxidation half-reaction is : Sb3+  →  Sb5+  +  2e- The reduction…

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: An aqueous solution of zinc nitrate is colourless. Addition of aqueous sodium hydroxide to zinc…

A: The oxidation state of Zn in zinc nitrate is +2. The zinc ion dissociates from zinc nitrate in the…

Q: This reaction represents the titration from today's lab. 2 s,0,2- + 12 → + I, → S40,2- + 21- In this…

A:

Q: An unknown solution labeled only by its concentration was analyzed. It was labeled to have "1.000 M…

A: Given volume of X(NO3)2 solution is 10.00 mL and strength is 1.000 M  Given volume of NaOH solution…

Q: The concentration of sulphide ion in the final solution is

A: We have to find The concentration of sulphide ion in the final solution is

Q: When 575 mL of a solution that is 1.10 M in NO3– reacts with excess Cr(OH)3 solid, how many moles of…

A: Given information:Volume of solution (V) = 575 mLConcentration or molarity of solution (M) = 1.10 M

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A:

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

A: Given   Volume of MnO4- =47 .20 ml  Molarity =0.02240 M

Q: The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating with a standard…

A: The balanced chemical equation has the number of atoms of the reactants is equal to the atoms count…

Q: Which of the following ionic compounds is insoluble in water? A) (NH.)2CO, B) AgBr CUSO4 D) E) C) KI…

A: The ionic compounds are mostly soluble in polar solvents like water because the ions of the solid…

Q: An unknown solution labeled only by its concentration was analyzed. It was labeled to have "1.000 M…

A: Given: Mass of precipitate = 0.3592 g Concentration of X(NO3)2 = 1.0 M Volume of X(NO3)2 = 10.0 mL…

Q: A titration of 2.00 ml of hydrogen peroxide solution (Mw = 34.01 g / mol) used 35.57 ml of 0.1 N…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: Potassium permanganate, KMNO4, is both effective at treating water and has medicinal uses. A certain…

A: Given: Concentration of KMnO4 in %(m/v) = 17.49 % Assuming 1 L i.e. 1000 mL of the solution.

Q: If 10. g of AgNO3 is available, what volume of 0.35 M AgNO3solution can be prepared?

A: Given, 10. g of AgNO3

Q: The reaction of sulfuric acid with sodium hydroxide is described by the equation: H₂SO4 + 2NaOH →…

A: Titration is a method to determine the concentration of an unknown solution by using the solution of…

Q: Consider the following balanced equation: 2KMnO<(aq) + 10KI(аq) + 8H:SO{(aq) — 6K:SО4(аq) +…

A:

Q: In the photographic developing process, silver bromide is dissolved by adding sodium thiosulfate:…

A: A balanced equation between AgBr and Na2S2O3 to give Na3Ag(S2O3)2 and NaBr. No.of moles in 0.250 g…