Homework Answers
the conversion of Fe2+ to Fe3+ involves the process of oxidation. each Fe2+ molecule loses an electron and its oxidation number increases.
Add Answer to:
Question 70 (1 point) A change from Fe2+ to Fe3+ would require a change in the...
A student studies the Fe3+/Fe2+ redox pair by using an electrochemical electrode and plotting the electrode...
A student studies the Fe3+/Fe2+ redox pair by using an electrochemical electrode and plotting the electrode potential vs. log10 [Fe3+]/[Fe2+]. Which of the following is correct? A greater ratio of [Fe3+]/[Fe2+] in solution results in Select one: a. a negative gradient b. a lower value of log([Fe3+]/[Fe2+]) c. a higher observed potential A student noticed no change in the potential of a solution of Fe3+/Fe2+ from when the meter was first turned on. Which of the following was most likely...
Question 18 (1 point) Which conjugate redox pair is involved in biological oxidations? O both Fe2+...
Question 18 (1 point) Which conjugate redox pair is involved in biological oxidations? O both Fe2+ & Fe3+ and succinate & fumarate OFMN and FADH2 O NADP+ & NAD succinate & fumarate Fe2+ & Fe3+
Consider the cell Pt(s)|H2(g,1atm)|H+(aq,a=1)|Fe3+(aq),Fe2+(aq)|Pt(s) given that Fe3++e−⇌Fe2+ and E∘=0.771V at 298.15 K. If the cell potential...
Consider the cell Pt(s)|H2(g,1atm)|H+(aq,a=1)|Fe3+(aq),Fe2+(aq)|Pt(s) given that Fe3++e−⇌Fe2+ and E∘=0.771V at 298.15 K. If the cell potential is 0.683 V, what is the ratio of Fe2+(aq) to Fe3+(aq)? What is the ratio of these concentrations if the cell potential is 0.807 V?
2. (10 points) Iron forms two ions in ionic bonds, Fe2+ and Fe3+. Answer the following...
2. (10 points) Iron forms two ions in ionic bonds, Fe2+ and Fe3+. Answer the following questions: a. Write the electron configurations for Iron in its ground state and both ions: Fe: Fe2+: Fe3+ b. Draw the molecular orbital diagram for the valence electrons of ground state iron. Clearly show the number of electrons and the orbitals. C. Assign quantum numbers to the ground state valence electrons of iron. d. In an iron atom with 3 valence electrons, which ionization...
Consider the following cell diagram: Pt(s) | Fe3+(aq) , Fe2+(aq) || Cl–(aq) | Cl2(g) | Pt(s)...
Consider the following cell diagram: Pt(s) | Fe3+(aq) , Fe2+(aq) || Cl–(aq) | Cl2(g) | Pt(s) The reaction utilized by this cell is Question 8 options: Fe2+(aq) + 2Cl–(aq) --> Fe(s) + Cl2(g) Fe(s) + Cl2(g) --> Fe2+(aq) + 2Cl–(aq) 2Fe3+(aq) + 2Cl–(aq) --> 2Fe2+(aq) + Cl2(g) Fe3+(aq) + Cl–(aq) --> Fe2+(aq) + 1/2Cl2(g) 2Fe2+(aq) + Cl2(g) --> 2Fe3+(aq) + 2Cl–(aq)
A voltaic cell is constructed from a standard Cr3Cr half cell (Ered=-0.740V) and a standard Fe3+|Fe2+...
A voltaic cell is constructed from a standard Cr3Cr half cell (Ered=-0.740V) and a standard Fe3+|Fe2+ half cell (Ered=0.771V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: + The spontaneous cell reaction is: The cell voltage is V.
1. (4p) In an acidic aqueous solution, Fe2+ ions are oxidized to Fe3+ ions by MnO4": 5Fe2+(aq) + MnO4 (aq) + 8H(aq) → 5...
1. (4p) In an acidic aqueous solution, Fe2+ ions are oxidized to Fe3+ ions by MnO4": 5Fe2+(aq) + MnO4 (aq) + 8H(aq) → 5Fe3+ (aq) + Mn2(aq) + 4H2O(1) In part A of the experiment, suppose that 1.067 g of Fe(NH4)2(SO4)2.6H2O(s) are placed in a 250 ml Erlenmeyer flask to which 20 mL of water and 8 mL of 3 M H2SO4(aq) are added. The solution was titrated to the end point by adding 26.89 mL of KMnO4(aq) from the...
biochemistry help The standard free energy change for the transfer of electrons from NADH to one...
biochemistry help
The standard free energy change for the transfer of electrons from NADH to one of the participants below is -70.4 kJ/mol. What is the identity of this acceptor? Redox pair Standard reduction potential ubiquinone/ubiquinol +0.045 V NAD+/NADH 0.320 V cytochome b (Fe/Fe2) +0.077V 1/202/H20 +0.816V cytochrome (Fe3+/Fe2) +0.220 V cytochrome as (Fe3/Fe2) +0.350 V cytochrome Cic O cytochrome b (Fe) 3/202 OOOO cytochrome as (Fe3+) ubiquinone
22-1 Calculate the electrode potentials of the following half-cells. Ag (0.0436M)|Ag a. b. Fe3 (5.34x10-4M), Fe2...
22-1 Calculate the electrode potentials of the following half-cells. Ag (0.0436M)|Ag a. b. Fe3 (5.34x10-4M), Fe2 (0.090M)|Pt C.
1. Zn, Zn2+ || Cu, Cu2+ 2. Cu, Cu2+ || Pt, Fe2+, Fe3+ 5. Zn, Zn2+...
1. Zn, Zn2+ || Cu, Cu2+ 2. Cu, Cu2+ || Pt, Fe2+, Fe3+ 5. Zn, Zn2+ || Pt, I-, I2 6. Cu, Cu2+ || Ag, Ag+ 7. Zn, Zn2+ || Ag, Ag+ WRITE DOWN THE OXIDATION REACTION AND REDUCTION REACTIONS FOR THE ABOVE REACTIONS PLEASE
Question 18 (1 point) Which conjugate redox pair is involved in biological oxidations? O both Fe2+ & Fe3+ and succinate & fumarate OFMN and FADH2 O NADP+ & NAD succinate & fumarate Fe2+ & Fe3+
2. (10 points) Iron forms two ions in ionic bonds, Fe2+ and Fe3+. Answer the following questions: a. Write the electron configurations for Iron in its ground state and both ions: Fe: Fe2+: Fe3+ b. Draw the molecular orbital diagram for the valence electrons of ground state iron. Clearly show the number of electrons and the orbitals. C. Assign quantum numbers to the ground state valence electrons of iron. d. In an iron atom with 3 valence electrons, which ionization...
A voltaic cell is constructed from a standard Cr3Cr half cell (Ered=-0.740V) and a standard Fe3+|Fe2+ half cell (Ered=0.771V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: + The spontaneous cell reaction is: The cell voltage is V.
1. (4p) In an acidic aqueous solution, Fe2+ ions are oxidized to Fe3+ ions by MnO4": 5Fe2+(aq) + MnO4 (aq) + 8H(aq) → 5Fe3+ (aq) + Mn2(aq) + 4H2O(1) In part A of the experiment, suppose that 1.067 g of Fe(NH4)2(SO4)2.6H2O(s) are placed in a 250 ml Erlenmeyer flask to which 20 mL of water and 8 mL of 3 M H2SO4(aq) are added. The solution was titrated to the end point by adding 26.89 mL of KMnO4(aq) from the...
biochemistry help
The standard free energy change for the transfer of electrons from NADH to one of the participants below is -70.4 kJ/mol. What is the identity of this acceptor? Redox pair Standard reduction potential ubiquinone/ubiquinol +0.045 V NAD+/NADH 0.320 V cytochome b (Fe/Fe2) +0.077V 1/202/H20 +0.816V cytochrome (Fe3+/Fe2) +0.220 V cytochrome as (Fe3/Fe2) +0.350 V cytochrome Cic O cytochrome b (Fe) 3/202 OOOO cytochrome as (Fe3+) ubiquinone
22-1 Calculate the electrode potentials of the following half-cells. Ag (0.0436M)|Ag a. b. Fe3 (5.34x10-4M), Fe2 (0.090M)|Pt C.
Most questions answered within 3 hours.
-
This exercise involves you using imagination and logical
reasoning to occupy the mindset of a visualiser...
asked 5 minutes ago -
What kinds of storage have you seen in use during your own
lifetime?
asked 6 minutes ago -
Practicing Acid Base Calculations
Cameco in Port Hope, Ontario uses hydrofluoric acid to make a
uranium...
asked 13 minutes ago -
The gross payoffs (X) from the investment have the following
probability mass function.
x
p(x)
0...
asked 21 minutes ago -
In an aqueous mixture of aluminum, lead, and iron salts, which
of these will be reduced...
asked 37 minutes ago -
The probability of college students in the US is given by P(A)=
0.06. The probability of...
asked 19 minutes ago -
Water is needed to supply a canal system, which may require up
to 30m3 s -1...
asked 24 minutes ago -
A stubborn dog is being walked on a leash by its owner. At one
point, the...
asked 30 minutes ago -
To convert the money spent on the basket to a useable figure,
economists arbitrarily choose the...
asked 30 minutes ago -
For a particular RLC series circuit, the capacitive reactance is
6.85 Ω, the inductive reactance is...
asked 36 minutes ago -
It is hypothesized that when homing pigeons are disoriented in a
certain manner, they will exhibit...
asked 51 minutes ago -
Copyright protection legislation provides protection for
original works
Select one:
a. until the author is 70...
asked 43 minutes ago