The overall cell reaction occurring in an alkaline battery is Zn(s) + MnO2(s) + H2O(l) → ZnO(s) + Mn(OH)2(s) (a) How many moles of electrons flow per mole of reaction? (b) If 4.50 g of zinc is oxidized, how many grams of manganese dioxide and of water are consumed? (c) What is the total mass of reactants consumed in part (b)?

Q: (a) Write the half-reaction that occurs at a hydrogen electrode in acidic aqueous solution when it…

A: Concept introduction: Anodic reaction: It is the reaction that occurs at anode by loss of electrons…

Q: Indicate if each of the following statements is true of false. If false, rewrite it to make it a…

A:

Q: Consider an electrochemical cell constructed from the following half cells, linked by a KCI salt…

A: A spontaneous reaction can be given as the reaction that occurs on its own that is there is no…

Q: For 2Fe3+(aq) + Zn (s) → 2Fe2+ (aq) + Zn2+ (aq), a galvanic (voltaic) cell is shown below. Which…

A: In a cell reaction, in cathode reduction takes place and in anode oxidation takes place.

Q: 5. An electrochemical cell is constructed using the following half-cells: E° = -0.877 V E° = -1.66 V…

A:

Q: 2. Consider a voltaic cell at 25°C in which the following reaction takes place. 302(g) + 4NO(g) +…

A: In electrochemistry, the Nernst equation is an equation that relates the reduction potential of an…

Q: Mg + Ni Mg (a) Write the cell notation. (b) Calculate the emf of the cell formed (c) If the…

A: As pe guideline , if multipart question , first 3 parts (a, b and c) are allowed to answer, please…

Q: A digital watch battery draws 0.40 milliamperes of current, which is provided by a mercury battery…

A: Faraday electricity: A movement of electrons is what electricity is. Relation between a number of…

Q: (a) What type of battery is the lead storage battery? Write the anode and the cathode reactions and…

A: The battery is formed by a parallel combination of electrochemical cells, which is classified into…

Q: (19) Consider the following redox reaction that occurs in a voltaic cell: Cr2+ (aq) + Cu2+ (aq) →…

A:

Q: Provide Standard Cell Notation for the following voltaic cell combinations Lead Sulfate (0.25 M)…

A:

Q: What mass of zinc (in grams) is deposited at the cathode when a current of 9.8 amperes passes…

A: According to the electrochemistry Mass of substance deposited,  W = ZCt Where,   t = time in second…

Q: A voltaic cell is to be designed at standard state conditions using the following two half-…

A: If the value of cell potential is positive; then the reaction is spontaneous. If the value of cell…

Q: A certain metal M forms a soluble sulfate salt MSO4. Suppose the left half cell of a galvanic cell…

A: To determine which electrode will be positive and the voltage that the voltmeter will show, we need…

Q: Consider the reaction of chlorine with manganese dioxide: 3 Cl2(s) + 2 MnO2(s) + 8 OH(aq) →6 Cr(aq)…

A: Given-> Equilibrium constant (Keq) = 6.63 × 1047

Q: A certain metal M forms a soluble sulfate salt MSO4. Suppose the left half cell of a galvanic cell…

A: As per the given information, this is basically concentration cell,where all the cell working due to…

Q: Consider the electrolysis of molten barium chloride (BaCl,). (a) Write the half-reactions. Include…

A:

Q: Complete the half-reactions for the cell shown, and show the shorthand notation for the cell. The…

A: During oxidation electrons are lost and during reduction, electrons are gained.Now, oxidation occurs…

Q: current

A:

Q: A digital watch battery draws 0.35 milliamperes of current, which is provided by a mercury battery…

A: Moles of HgO and Zn is calculated as shown,

Q: Consider the following reaction that occurs in a voltaic cell: 2Al(s) + 3Zn2+(aq) → 2Al3+(aq) +…

A: Answer:- This question is answered by using the simple concept of electrochemical cell which…

Q: 2 Li(s) + Ag:Croa(s)→ Li:Croa(s) + 2 Ag(s) (a) Lithium metal is the reactant at one of the…

A: (A) For the reaction-: 2Li(s) + Ag2 CrO4(s) --> Li2 CrO2 (s)+ 2Ag (s) Li(s) is oxidized to Li+…

Q: Consider the electrolysis of molten barium chloride, BaCl₂. a) Write the half-reactions for anode…

A: Given, Consider the electrolysis of molten barium chloride BaCl2 : a) Half reaction for anode and…

Q: A chemist designs a galvanic cell that uses these two half-reactions: standard reduction N₂(g) +…

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

Q: A digital watch battery draws 0.20 milliamperes of current, which is provided by a mercury battery…

A: Number of moles = given mass / molar mass

Q: In a Li-ion battery the composition of the cathode is LiCoO2 when completely discharged. On charging…

A: For a Lithium ion battery the composition of the cathode when the battery is fully discharged is…

Q: 5. a) What type of voltaic cell is constructed from half cells consisting of the same electrode…

A: An electrolytic cell is one which converts electrical energy to the chemical energy i.e. an external…

Q: The answer to this question is 5 but please provide an explanation as to how that is the answer!…

A: Here both the electrodes are the same which is Cu(s), but the concentration of the electrolyte is…

Q: A Voltaic Cell (also known as a Galvanic Cell) is an electrochemical cell that uses spontaneous…

A: Note: We can solve first three parts of question. Given: Diagram and data is given To find: a)…

Q: In an car battery recharging occurs when the car is running by supplying a current to the battery.…

A:

Q: A certain metal M forms a soluble sulfate salt M₂(SO4)3. Suppose the left half cell of a galvanic…

A: Concentration of left half cell = 4.50 M Concentration of right half cell Temperature = 40oC =…

Q: standard cell notation shown below represents a Galvanic cell connected by a salt bridge. The salt…

A:

Q: A voltaic cell utilizes the following reaction and operates at 25 "C. 2 Fe3 (aq) • H2(g) “ 5 2 Fe2…

A: These type of question is soved using nearns equation. Let us try to solve them.

Q: How many moles of Al3+ would be electrolyzed to Al(s) with the same amount of electricity that…

A: According to Faraday law of electrolysis - The amount of substance deposited at electrode is…

Q: A current 6.0 amperes is passed for 10 hours between copper electrodes in 800 ml of copper nitrate…

A: The charge carried by one electron is 96500 C. The electrode reaction: Given that current passed is…

Q: A certain metal M forms a soluble sulfate salt MSO4. Suppose the left half cell of a galvanic cell…

A:

Q: A certain metal M forms a soluble nitrate salt M(NO3)₂. Suppose the left half cell of a galvanic…

A: In the given Galvanic cell,  the electrode is the same in both the half-cells which is the metal, M.…

Q: A certain metal M forms a soluble sulfate salt MSO4. Suppose the left half cell of a galvanic cell…

A: Given,  Concentration of left galvanic cell =1.50 M  Concentration of right galvanic cell = 75 mM

Q: One electrode in an alkaline battery is zinc, and the other is manganese dioxide. (a) Fill in the…

A: Alkaline battery is a primary battery which extracts energy from the reaction between zinc and…

Q: A certain metal M forms a soluble sulfate salt MSO4. Suppose the left half cell of a galvanic cell…

A:

Q: Consider a voltaic cell at 258C in which the following reaction takes place. 3 O2(g)+4NO(g)+2H2O=…

A: Cathode reaction:

Q: A certain metal M forms a soluble nitrate salt M(NO3)₂. Suppose the left half cell of a galvanic…

A: In the given Galvanic cell,  the electrode is the same in both the half-cells which is the metal, M.…