If the iron in a 0.1500-gram sample of iron ore is reduced and subsequently requires 15.03 ml of permanganate for  oxidation, what is the purity of the ore expressed as percentage of  Fe2O3? 4.000 mL KMnO4 is equivalent to 3.000 mL KHC2O4.H2C2O4 solution (as a reducing agent) and equivalent to  3.000 mL 0.1000 N NaOH (as an acid)

Q: A 0.8040-g sample of an iron ore is dissolved in acid. The iron is then reduced to Fe21 and titrated…

A: Initially from the given balanced equation  Mole ratio is found and then moles of Fe and Fe2O3 are…

Q: The following chemical reaction takes place in aqueous solution: 2FeCl3 (aq) + 3Na2S (aq) → Fe2S3…

A: Molecular equation:                              2FeCl3(aq) + 3Na2S(aq) →  Fe2S3(s) + 6NaCl(aq)

Q: (Mn) + (O2) + (2H+) => (Mn^2+) + (H2O2)  In the above reaction, the oxidation state of manganese…

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Q: What is the oxidation state of an individual phosphorus atom in PO3 3− ?

A: The objective of this question is to determine the oxidation state of phosphorus in the polyatomic…

Q: What is the oxidation state of each element in K,Cr,0,? Cr к What is the oxidation state of each…

A: (a) Oxidation state of each elements in K2Cr2O7 Oxidation state of K = +1 Oxidation state of Cr = +6…

Q: Decide whether each chemical reaction in the table below is an oxidation-reduction ("redox")…

A: Redox reaction: The reaction which involve simultaneous oxidation -reduction reaction is called…

Q: Balance the equation in basic conditions. Phases are optional. equation: N2H4 + Cu(OH)2 N2 + Cu

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Q: Determine the pH, pOH of a 0.050M solution of Fe(H₂O)67 +3

A: The given solution is  solution. Concentration of solution = 0.050 MKa of =

Q: A student proposed that the balanced chemical equation for this reaction is: Pb(NO3)2 + 2Nal > Pbl,…

A: ANSWER IS :

Q: A 100.0 mL sample of spring water was treated to convert any iron Fe2+. Addition of 25.00 mL of…

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Q: 7. Give the oxidation number of nitrogen in each of the following compounds or ions: (a) Li3N (d)…

A: Rules for assigning oxidation numbers:- The oxidation number of a free element is always  Fluorine…

Q: Complete and balance the equation for this reaction in acidic solution. equation: MnO4 + HNO₂ ->>…

A: Redox reactions are those in which both oxidation and reduction processes occur simultaneously.…

Q: Balance the following redox reactions using the half reaction method in acidic solution. a.…

A: The process consist of a stepwise complete mechanism. One thing which is notable that electrons…

Q: Identify the oxidizing agent in the following reaction - and why? Zn(s) + 2MnO2(s) ----> ZnO(aq)…

A: In generally, loss of electron is oxidation and gain of electron is reduction.Addition of oxygen and…

Q: A sample of copper oxide weighing 2.013 g is dissolved in acid, the pH adjusted, and excess KI…

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Q: What is the oxidation state of sulfur in S4O6^2-

A: Calculate oxidation state of S in S4O62- ?

Q: 22. Use the oxidation states method to balance the reaction: _ So,2- (aq) + Fe2+ (aq) + _H* (aq) _…

A: We have to balance the given equation

Q: oxidation state

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Q: Complete by balancing and classify the following reaction Al(metal foil)+CuCl2

A: Interpretation-  To complete by balancing and classify the following reaction of Al(metal foil ) +…

Q: What is the oxidation number of K in KMnO4 (OR K Mn O4)?

A: Oxidation number: The covalent bond between the atoms of different electronegativity is polar. If we…

Q: complete and balance the following reactions: Aqueous solutions of sodium chloride and lead (II)…

A: Balanced chemical equation of a reaction is written according to law of conservation of mass.General…

Q: A common analytical oxidizing agent is an acidic solution of bromate ions, BrO3™, for which Eº…

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Q: 0.683 grams of iron mineral dissolves with acid. Fe2+ ​​is titrated with Ce(SO4)2 solution.…

A: Reaction between Fe2+ with Ce(SO4)2 is as following: Fe2+ + Ce(SO4)2 ----> Fe3+ + Ce3+ 1 mol…

Q: Balance the following reactions in acidic and basic medium. Al(s) + O2(g) + [Al(OH)4] Cr2072 +…

A: balancing of chemical reactions

Q: Fill in the blank with an integer, for example, 2, 6, 19, 23, etc. 1.1 g of copper ore is dissolved…

A: The involved chemical reaction is given as: 2Cu2+ + 4I-   ---->  Cu2I2 + I2 I2 + 2S2O32-…

Q: What happens in this reaction? 3Zn(s) + 2Cr3*(aq) 2Cr(s) + 3Zn2*(aq)

A: The species whose oxidation number increases is oxidized  The species whose oxidation number…

Q: 2. A sample iron ore weighing 0.6428 g is dissolved in acid, the iron is reduce to Fe2*, and the…

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Q: Given that sodium oxalate is dissolved in a flask and is titrated to its equivalence point with 30…

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Q: A 0.1200 g sample of pure iron wire was dissolved in acid, reduced to +2 state and titrated with…

A: Given, Ce4+ + Fe2+ ---> Ce3+ + Fe3+ mass of pure iron (Fe) = 0.1200 g Volume of Ce4+ solution =…

Q: A 1.362 g sample of an iron ore that contained FegO4was dissolved in acid and all of the iron was…

A: Given that : Mass of iron ore sample = 1.362 g The molar mass of Fe3O4 is 231.5 g/mol

Q: what is the oxidation number for K3N potassium nitride

A: Potassium Nitride = K3N It is an ionic compound

Q: A sample of iron ore weighing 0.962 g was dissolved in dilute acid solution, and all the Fe(II) was…

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Q: Consider the following redox reaction: Cl207 (aq) + H202 (aq) CIO2 (aq) + 02 (g) ->

A: Step : 1             Balance the redox reaction.

Q: After reducing a 0.4080 g iron to Fe²⁺, it was titrated with 42.72 mL of 0.1211 N KMnO₄ solution.…

A: The chemical reaction taking place is: MnO4-+5Fe2++8H+→ Mn2++5Fe3++4H2O Mass of Fe3O4 in the sample…

Q: a solution prepared by dissolving 0.2541g sample of electrolytic iron wire in acid was passed…

A: Given :  Mass of iron wire = 0.2541 gm  Volume of Cr2O7-2 solution = 36.76 ml

Q: What is the reducing agent?

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Q: iii). The reducing agent for the forward reaction in: Mn²+ + Bi03 → MnO4 + Bi3+ is,

A: Given :-  Mn2+  +  BiO3- → MnO4-  +  Bi3+  To identify :-  Reducing agent in forward reaction

Q: following skeletal equation is balanced under acidic conditions, what are the coefficients of the…

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