Consider the redox reaction Fe(s) + Cu* (aq) Fe* (aq) + Cu(s) - Which substance gets oxidized? Which substance gets reduced? Cu O Cu OCu Cu*+ OFe Fe Fe Fe²+ caect What is the oxidizing agent? What is the reducing agent
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- 7. Consider a1Msolution ofNa3AsO4. Write the charge and mass balance equations for this system. (please type answer not write by hend)Which of the following are equivalent to 2,500 ppm Cu2+? (There may be more than one answer) MW: Cu (63.55) a) 2.5 ppb Cu2+ b) 2,500,000 ppb Cu c) 2.5 ppt Cu2+ d) 39.34 mM e) 0.03934 M f) 0.07868 N (in precipitation reaction) g) 0.07868 N (in redox into Cu+)Ochem help with prelab The experiment is attached and involves the reduction of a nitro group to an amine The Chemicals are: 200 mg of m-nitroacetophenone 400 mg of granular tin 4 mL of 6M hydrochloric acid 30% sodium hydroxide Need help with the prelab which requires... A. Write the balanced equations for both half-reactions of the redox and then the overall balanced redox equation B. Determine the limiting reagent and the theoretical yield of amine
- In basic solution, molecular chlorine, Cl2, reacts with hydroxide ions, OH^-, to yield chloride ions, Cl^-. and chlorate ions, ClO4^-. Hint: This is a disproportionation reaction in which the element chlorine is both oxidized and reduced. Write a balanced equation for this reaction. Answer: 3Cl2 + 6OH^- ---> 5Cl^- + ClO3^- + 3H2O Show work?The iodine produced when excess of KI was added to the solution containing 0.1259 g K2Cr2O7 required a 41.26 mL titration with Na2S2O3 required a 41.26 mL titration with Na2S2O3. P.S. Be able to answer numbers 1 and 2 ONLY. 1. Determine if it is basic or acidic and write the balance redox reaction for the reaction of dichromate ion with iodide ion in acidic medium. Unbalance equation: Cr2O72- (aq) + I- (aq) → Cr3+ + I2 (aq) 2. Determine if it is basic or acidic and write the balance redox reaction of iodine with sodium thiosulfate in acidic medium. Unbalance equation: S2O3 2- (aq) + I2 (aq) → S4O6 2- (aq) + I- (aq) 3. (i) What are the oxidizing agents in #1 and #2? (ii) What is the stoichiometric ratio between dichromate and thiosulfate? 4. Calculate the molar concentration of the thiosulfate solution.Reaction: CrO42-(aq)+2H+(aq) <--> Cr2O72-(aq)+H2O(l) YELLOW ORANGE a) Under what conditions will Cr2O72-(aq) predominate? explain / defend your answer choice. b) is this a redox reaction? explain/ defend your answer.
- A 1.963-g sample of an alloy is dissolved in HNO3 and diluted to volume in a 100-mL volumetric flask. Titrating a 25.00-mL portion with 0.1078 M KSCN requires 27.19 mL to reach the end point. Calculate the %w/w Ag in the alloy. (Mwt of Ag = 107.87 g/mol)Complete the neutralization reaction of phosphoric acid reacting with potassium hydroxide to form water and potassium phosphate. Input the coefficients of the reactancts and products, including 1, if applicable. Also, input the formula for the potassium phosphate in the last field. ?H3PO4 + ?KOH ---> ?H2O + ? & ?15. Calculate the reserve capacity at 80°F of an automobile battery that was discharged at 87°F for 102min.?A. 94.62 minB. 94.86 minC. 95.40 minD. 95.15 min Obs: I inform you that the answer to letter " C " is wrong, according to the test I did. I appreciate your help which of this question is the correct answer. thanks
- How many electrons are being transfer in the following unbalanced reaction Fe + O2 --> Fe2O3?Given the following unbalanced response:NO2-+MnO4-+H+ NO3-+Mn2++H2OWhat is the number of electrolyte molecules passing through the reaction? A. 1 B. 2 C. 5 D. 10IDENTIFY THE OXIDATION NUMBER OF EACH ELEMENT IN THE GIVEN CHEMICAL FORMULA. All answers to be entered via short answer are in the numerical format Include the sign (either positive or negative) E.g.: KI- What is the oxidation number of potassium?- Answer: +1- What is the oxidation number of iodine?- Answer: -1 Givenproblems: -What is the oxidation number of SODIUM in sodium chloride (NaCl)? -What is the oxidation number of CHLORINE in sodium chloride? -What is the oxidation number of MAGNESIUM in magnesium hydroxide Mg(OH)₂? -What is the oxidation number of OXYGEN in magnesium hydroxide Mg(OH)₂? -What is the oxidation number of HYDROGEN in magnesium hydroxide Mg(OH)₂? -What is the oxidation number of POTASSIUM in potassium dichromate K₂Cr₂O₇? -What is the oxidation number of CHROMIUM in potassium dichromate K₂Cr₂O₇? -What is the oxidation number of OXYGEN in potassium dichromate K₂Cr₂O₇? Given Problem: Identify the coefficient of each compound in the reaction. - All answers to…