QUESTION 11 Identify the oxidizing agent and reducing agent in the reaction. 2 103 5 Pb2+ 8 OH -5 PbO2 + 12 + 4 H20 oxidizing agent v reducing agent v oxidizing agent reducing agent neither OHE CTIO N 42
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A: Oxidation: The oxidation is defined as the loss of electrons or an increase in the oxidation state…
Q: What happens to a substance when it becomes oxidized?
A: When in a reaction a species gets oxidized and the other gets reduced, it is known as a redox…
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Q: determine the oxidizing agent in the following 2 Na + 2 H2O --> 2 NaOH + H2
A: Given chemical reaction : 2 Na + 2 H2O --> 2 NaOH + H2
Q: oxidized
A: Oxidation is an increase of Oxidation Number (Increase positive Charge or loosing electron)
Q: In which reaction does the oxidation number of hydrogen change? A) HCl (aq) + NaOH (aq) → NaCl (aq)…
A: Answer Option B. 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
Q: oxidizing agent
A:
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A: The Oxidation number is predicted for the element in the given reactions as shown,
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Q: Q1: Classify if the following reactions are redox reactions. For each of the redox reaction…
A: oxidation is defined as increase in oxidation state of the element. while reduction is defined as…
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Q: ourself 7.3 a eous solution co: -Reaction oc eurs ilibrium, the a cet
A: The question is based on the concept of equilibrium. we have to calculate value of equilibrium…
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A: We are authorised to solve only one question at a time. Please post rest of the questions…
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A: The given chemical reaction:2SO42- + N2H4 ------------à N2 + 2SO32-+ 2H2OThe loss of electrons is…
Q: Determine whether or not reaction is a redox reaction. For redox reaction, identify the oxidizing…
A: A chemical reaction in which the oxidation number of one of the reactant species increases while the…
Q: SO42- + Pb+ 4H+Pb2+ + SO2+ 2H2O In the above redox reaction, use oxidation numbers to identify the…
A: Oxidation : The process in which gain of oxygen atoms or loss of hydrogen atoms or loss of electrons…
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Q: Consider the same chemical equation: 14 H+(aq) + 6Fe2+(aq) + Cr2O72-(aq) ⟶ 6Fe3+(aq) + 2Cr3+(aq) +…
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- Given the following: A cell SCE // Ag2CrO4 (saturated), CrO42- (xM) /AG is used for the determination of pCrO4- (ESCE = -0.244 V at 25 C). The half reaction at indicator electrode is: Ag2CrO4(s) + 2e- 2 Ag(s) + CrO42- (E0 = +0.446 V) What is pCrO4, given the cell potential of 0.402? What type of indicator electrode is Ag in this situation?acid dissociation constants for H3PO4 (Ka1 = 7.11 × 10-3, Ka2 = 6.32 × 10-8, Ka3 = 7.1× 10-14), calculate standard reduction potential for the half reactionH2PO4- + H+ + 2e HPO32- + H2OBalancing osidation-reduction Equationa:
- Equilibrate S2O3-2(aq) + I2(aq) ➔ S2O6-2(aq) + I-(aq) reaction in basic medium by ion-electron method.A 1.000 g sample containing chlorides, iodides and inert materials was treated with dilute nitric acid followed by AgNO3. A precipitate of AgCl (143.32) and AgI (234.77) was produced and weighs 0.9238 g. On heating in a current of Cl2, the AgI is converted to AgCl, and the resulting product weighs 0.7238 g. Find the percentage of a) NaI (149.89) and b) NaCl (58.44) in the samplePrepare a complete analysis procedure using KMnO4 as teh oxidant instead of K2CrO7 in the redox analysis of iron. Include sample and solution preparation, approximate weights of samples and reagents, procedure and chemical reactions. In particular, what is the purpose of the Zimmermann-Reinhardt reagent?
- A 2mL solution of hyrogen peroxide (1 g / mL) is titrated with permanganate in basic conditions. Write the balanced oxidation and reduction half-reaction7. Consider a1Msolution ofNa3AsO4. Write the charge and mass balance equations for this system. (please type answer not write by hend)Use the shorthand notation to describe a cell consisting of a saturated calomel reference electrode and a silver indicator electrode for the measurement of (a) pSCN. (b) pI. (c) pSO3 (d) pPO. Then, generate an equation that relates pAnion to Ecell for each of the cells. (For Ag2SO3 Ksp = 1.5 * 10-14; for Ag3PO4, K,p = 1.3 *10-20 ).
- 1. A pH electrode obeys the equation E= constant - 0.0592 pH. If the electrode potiential (E) is -0.105 V at 0.002500 M [H+], what is the electrode constant? 2. Using the electrode constant calculated abobe, determine the pH of a solution that gives the electrode potiential of -0.450V. Sketch the calibration plot for the pH electrode. Label the axes, electrode constant and the value of the slope on the calibration plot. Answer question 1(c)Ions that react with Ag+ like SCN- can be determined electrogravimetricallyby deposition on a silver working anode:Ag(s) + SCN- ≤ AgSCN(s) + eA silver anode with initial mass of 12.4730 g was used to electrolyse 85.00 mL of asolution of 0.0245 M KSCN. At the end of the experiment, the anode weighed12.5767 g. How long did the experiment take, if a current of 100 mA was used?8.00mL aqueous suspension of elemental selenium is treated with 24.00mL ammonia 0.045M AgNO3 The reaction is as follows: 6Ag (NH3) 2 ++ 3Se (s) + 3H2O → 2Ag2Se (s) + Ag2SeO3 (s) + 6NH4 + After this reaction is completed, nitric acid is added to dissolve Ag2SeO3. However, Ag2Se does not dissolve during this time. Ag + consisting of dissolved Ag2SeO3 and the excess of the reagent requires 13.43mL 0.01294M KSCN in a Volhard titration. How many milligrams of Se are in each milliliter of sample? (Se = 78.96g / mol)