During the discharge (operation) of a 1.5 alkaline battery, Robin determined that 6.33g of zinc was...
During the discharge (operation) of a 1.5 alkaline
battery, Robin determined that 6.33g of zinc was oxidized to
zn(oh)2.
a) what mass of Mno2 was reduced at the cathode.
b) How many coloumbs of electron charge we're transferred from zn
to Mno2 ?
c) How many joules of electrical energy we're produced ?
Homework Answers
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During the discharge (operation) of a 1.5 alkaline
battery, Robin determined that 6.33g of zinc was...
During the discharge of an alkaline battery, 4.10 g of Znare consumed at the anode of...
During the discharge of an alkaline battery, 4.10 g of Znare consumed at the anode of the battery. A. What mass of MnO2 is reduced at the cathode during this discharge? B. How many coulombs of electrical charge are transferred from Zn to MnO2? Please explain this question to me.
The overall reaction for the discharge of a nonrechargeable alkaline battery is 2MnO2(s) + Zn(s) +...
The overall reaction for the discharge of a nonrechargeable alkaline battery is 2MnO2(s) + Zn(s) + 2H2O(1) 2MnO(OH)(s) + Zn(OH)2(s) The cathode of a brand new, undischarged alkaline battery is made of O MnO(OH)(s) Zn(OH)2(s) Zn(s) O Mn(OH)2(s) MnO2(s)
If a 1.5 V AAA alkaline battery can power a 1.4 Watt device for 1 hour,...
If a 1.5 V AAA alkaline battery can power a 1.4 Watt device for 1 hour, how many grams of zinc (65.38g/mol) does it contain? Overall reaction in battery: MnO2 + 2H2O + Zn --> Mn(OH)2+ ZnO The answer is 1.1 g Please explain step by step and how to reach this answer.
) The discharge reaction for a zinc-manganese dioxide battery can be represented as: Zn(s) + 2MnO2(s)...
) The discharge reaction for a zinc-manganese dioxide battery can be represented as: Zn(s) + 2MnO2(s) → ZnO(s) + 2Mn2O3(s) What quantity of charge (in coulombs) can be provided by a fully charged 1.50-V zinc-manganese dioxide photo-flash battery, if the mass of MnO2 in the battery is 9.90 g? C (b) What is the maximum amount of work (in joules) that can be obtained from this battery? J
The discharge reaction for a zinc-manganese dioxide battery can be represented as: Zn(s) + 2MnO2(s) →...
The discharge reaction for a zinc-manganese dioxide battery can be represented as: Zn(s) + 2MnO2(s) → ZnO(s) + 2Mn2O3(s) (a) What quantity of charge (in coulombs) can be provided by a fully charged 1.50-V zinc-manganese dioxide photo-flash battery, if the mass of MnO2 in the battery is 8.83 g? C (b) What is the maximum amount of work (in joules) that can be obtained from this battery? J
need help !! with questions 2,4,5,6 Initial Mass of Cathode electrode (Fe) Initial Mass of Anode...
need help !! with questions 2,4,5,6
Initial Mass of Cathode electrode (Fe) Initial Mass of Anode electrode (Zn) Final Mass of Cathode 10.0g 10, og 10,209 .2g Fe 3+ (aq)+32 z Fecs) Mass of Zinc deposited on cathode (g) Half reaction in Cathode Half reaction in Anode Zn(s) Eszn²+ (aq) + Ze Za(s) + 2 Fest (1) ► 2* (g) +2 Fe²+ (aq) Overall Cell Reaction Standard Cell Potential, Ecellº .440 +.763 3.32 3 (Eºcell = Ecathode - Eanode) Number...
some questions are filled out but still need help woth the remainder of this assignment part...
some questions are filled out but still need help woth the
remainder of this assignment
part B and below needs to be answered.
Paragraph Styles . . Electrochemical Cells Objective: Investigate electrochemical potential using electrochemical cells. Information: Electric current is the flow of negatively charged particles. An electrochemical cell is a device that creates an electric current by converting chemical energy into electric current, or vice versa. Voltaic cells are electrochemical cells that produce current spontaneously by converting chemical energy...
Need help filling in my data sheet from a lab. My professor said the pressure was...
Need help filling in my data sheet from a lab. My professor said
the pressure was 24.6 inches of Hg and that we needed to convert
that to moles. Im not sure i put that in the correct spot. I
included the lab protocol. Plz plz plz help me fill in the blanks
and let me know if i did something wrong Im very confused haha.
THANKS!!
Equivalent Mass by Electrolysis If the two terminals on any source of DC...
Chem 1212 Lab Report on electrochemistry Electrochemistry When electrons transfer between reaction components in a redox...
Chem 1212 Lab Report on electrochemistry
Electrochemistry When electrons transfer between reaction components in a redox reaction, we can harness the motion of the electrons to create a potential. Electrochemistry revolves around the separation of the two half-reactions in a redox reaction and establishing two different electrodes. This might involve physically separating the half-reactions or including a separator, such as a semi-permeable membrane or plastic dividers. With the reactions separated, the electrons will need to flow through the wire connecting...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible proce...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
The overall reaction for the discharge of a nonrechargeable alkaline battery is 2MnO2(s) + Zn(s) + 2H2O(1) 2MnO(OH)(s) + Zn(OH)2(s) The cathode of a brand new, undischarged alkaline battery is made of O MnO(OH)(s) Zn(OH)2(s) Zn(s) O Mn(OH)2(s) MnO2(s)
need help !! with questions 2,4,5,6
Initial Mass of Cathode electrode (Fe) Initial Mass of Anode electrode (Zn) Final Mass of Cathode 10.0g 10, og 10,209 .2g Fe 3+ (aq)+32 z Fecs) Mass of Zinc deposited on cathode (g) Half reaction in Cathode Half reaction in Anode Zn(s) Eszn²+ (aq) + Ze Za(s) + 2 Fest (1) ► 2* (g) +2 Fe²+ (aq) Overall Cell Reaction Standard Cell Potential, Ecellº .440 +.763 3.32 3 (Eºcell = Ecathode - Eanode) Number...
some questions are filled out but still need help woth the
remainder of this assignment
part B and below needs to be answered.
Paragraph Styles . . Electrochemical Cells Objective: Investigate electrochemical potential using electrochemical cells. Information: Electric current is the flow of negatively charged particles. An electrochemical cell is a device that creates an electric current by converting chemical energy into electric current, or vice versa. Voltaic cells are electrochemical cells that produce current spontaneously by converting chemical energy...
Need help filling in my data sheet from a lab. My professor said
the pressure was 24.6 inches of Hg and that we needed to convert
that to moles. Im not sure i put that in the correct spot. I
included the lab protocol. Plz plz plz help me fill in the blanks
and let me know if i did something wrong Im very confused haha.
THANKS!!
Equivalent Mass by Electrolysis If the two terminals on any source of DC...
Chem 1212 Lab Report on electrochemistry
Electrochemistry When electrons transfer between reaction components in a redox reaction, we can harness the motion of the electrons to create a potential. Electrochemistry revolves around the separation of the two half-reactions in a redox reaction and establishing two different electrodes. This might involve physically separating the half-reactions or including a separator, such as a semi-permeable membrane or plastic dividers. With the reactions separated, the electrons will need to flow through the wire connecting...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
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