The standard hydrogen electrode:
Select the correct answer below:
is often used as a control in the laboratory.
is a simple, safe, and easy-to-create electrode.
involves the evolution of hydrogen gas, making it impractical for laboratory use
none of the above
When considering the relationship among standard free energy change, equilibrium constants, and standard cell potential, the equation ΔG∘=−RTlnK is _______.
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used to find the standard cell potential given the standard free energy change
used to find the standard cell potential given the equilibrium constant
used to find the equilibrium constant given the standard cell potential
used to find the equilibrium constant given the standard free energy change
The mass-energy equivalence equation, when applied to real, observable processes, describes the conversion between:
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small amounts of energy and large amounts of mass
small amounts of mass and large amounts of energy
small amounts of energy and small amounts of mass
large amounts of energy and large amounts of mass
What type of particle is emitted when U92238 decays to Th90234?
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α particle
β particle
γ particle
positron
When the neutrons produced in the fission of U-236 bombard U-235 to generate more U-236 and perpetuate fission, this is called a:
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decay series
chain reaction
sequential fission
none of the above
Sometimes a nuclide is referenced by the name of the element followed by the:
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atomic number
mass number
electrical charge
none of the above
γ emission is most likely to occur if a nucleus:
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is too large
has a neutron to proton ratio that is too large
has a neutron to proton ratio that is too small
is excited
The standard hydrogen electrode: Select the correct answer below: is often used as a control in...
The standard hydrogen electrode: Select the correct answer below O is often used as a control in the laboratory O is a simple, safe, and easy-to-create electrode. O involves the evolution of hydrogen gas, making it impractical for laboratory use O none of the above
Standard free energy change is: Select the correct answer below: O directly proportional to Ec O inversely proportional to Ec O directly proportional O inversely proportional to the natural logarithm of cell to Foll to the natural logarithm of
*A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II), [Cu(NH3)4]2+. If a standard hydrogen electrode is used as the cathode, the cell potential, Ecell, is found to be 0.070 V at 298 K. A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II), [NH. If a standard hydrogen electrode is used as the cathode, the cell potential,...
Standard free energy change is: Select the correct answer below: directly proportional to K inversely proportional to K directly proportional to the natural logarithm of K inversely proportional to the natural logarithm of K
Heavier elements will undergo fission in order to: Select the correct answer below: increase total binding energy decrease total binding energy increase binding energy per nucleon decrease binding energy per nucleon
Question 4 An economy has cyclical unemployment whenever Select the correct answer below: O equilibrium real GDP is less than the potential level of GDP o the economy produces an output equal to the potential level of GDP O equilibrium real GDP is more than the potential level of GDP O none of the above
For a galvanic cell where the standard free energy change is negative and the cell potential is positive, the reaction in the cell must be: Select the correct answer below: O always spontaneous O never spontaneous O spontaneous at certain temperatures O impossible to predict
Please use the following to answer the below: A fictional galvanic (voltaic) cell consists of an electrode composed of a metal, M, in a 1.0 mol/L M2+ ion solution and a second electrode composed of an unreactive platinum metal (Pt) in a 1.0 mol/L X– ion solution, connected by a salt bridge and an external wire at 25.0 ⁰C. Consider the two entries below from a fictional table of standard reduction potentials. Reduction Equation Standard reduction potentials (E⁰reduction) M2+ (aq)...
Consider a voltaic (galvanic) cell with the following metal electrodes. Identify which metal is the cathode and which is the anode, and calculate the cell potential. (Use the table of Standard Electrode Potentials.) (a) Ca(II) and Sc(III) Cathode: . Ca(II) Sc(III) Anode: Ca(II) Sc(III) Ecell = 0.0591 x V (b) Pb(II) and In(III) Cathode: . Pb(II) In(III) Anode: Pb(II) In(III) Ecell - (c) Ni(II) and Zr(IV) Cathode: NI(II) Zr(IV) Anode: Ni(II) Zr(IV) Ecell - V Supporting Materials Periodic Table Supplemental...
Cell notation will list each half-reaction: Select the correct answer below: A.) starting with the reaction at the cathode B.) with coefficients to balance the species C.) on each side of the salt bridge, which is represented by a double vertical line D.) none of the above