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5. (4 pts) Discuss the relationship between Wmax and the magnitude and sign of the free...
The free energy change for an oxidation-reduction reaction occurring at constant temperature and pressure is given...
The free energy change for an oxidation-reduction reaction occurring at constant temperature and pressure is given by AGnFE where n is the moles of electrons transferred in the reaction, E is the cell potential of the reaction, and F is Faraday's constant. Use this relationship to answer the problem below In one half-cell of a voltaic cell, the following reaction occurs: Be(s) → Be2+(aq) + 2 e. In the other half-cell of the voltaic cell, the following reaction occurs: 2...
1.Discuss the use of ATP as the energy currency of the cell (include in your discussion...
1.Discuss the use of ATP as the energy currency of the cell (include in your discussion the types of work performed by the cell) 2. Discuss ATP synthesis and ATP hydrolysis; How do cells obtain the energy to synthesize ATP? Why do cells hydrolyze ATP? What do cells do with released energy obtained from the hydrolysis of ATP? 3. Discuss oxidation & reduction and the role of electron transfer in ATP synthesis • discuss the role of NAD+ and FAD...
4.Define mean free-time? Is there any difference between mean-free time of an electron and a hole...
4.Define mean free-time? Is there any difference between mean-free time of an electron and a hole in Si? 5. What is mean free-path? What is the net displacement of an electron in one second due to thermal energy in Si? 6. What is the minority lifetime?
3. (10 pts) Name the law that establishes a relationship between the rotation of the electric...
3. (10 pts) Name the law that establishes a relationship between the rotation of the electric field strength and the magnetic flux density. Explain in a sentence the meaning of the negative sign of the term with the magnetic flux density. 4. (10 pts) An electron at rest in vacuum is accelerated by a momentary electric field E 438 mV / m z for 325 us and then enters a magnetic field B 257 uT y Determine the direction of...
3. (10 pts) Name the law that establishes a relationship between the rotation of the electric...
3. (10 pts) Name the law that establishes a relationship between the rotation of the electric field strength and the magnetic flux density. Explain in a sentence the meaning of the negative sign of the term with the magnetic flux density. 4. (10 pts) An electron at rest in vacuum is accelerated by a momentary electric field E = 438 mV/m z for 325 us and then enters a magnetic field B = 257 UT y. Determine the direction of...
Discuss the relationship between free radical formation and human health, list 4 antioxidants plus food sources...
Discuss the relationship between free radical formation and human health, list 4 antioxidants plus food sources for each, and explain how antioxidants work. Dangers of antioxidants in supplement form? Discuss
EXPERIMENT: 26 ELECTROCHEMISTRY: GALVANIC AND ELECTROLYTIC CELLS Materials Required : 50 mL beake...
Help please
EXPERIMENT: 26 ELECTROCHEMISTRY: GALVANIC AND ELECTROLYTIC CELLS Materials Required : 50 mL beakers (2) test tubes sandpaper glass U-tube cotton voltmeter 9.0 V battery connecting wires with alligator clips (2) thermometer iron nail paper clips (2) copper wire magnesium ribbon magnesium sulfate (MgSO) copper sulfate pentahydrate (CuSO, 5H,O) sodium chloride (NaCI) saturated sodium chloride (NaCI)solution phenolphthalein indicator SAFETY PRECAUTIONS: EYE PROTECTION MUST BE WORN AT ALL TIMES IN LABORATORY. Purpose of Experiment: Oxidation-reduction reactions will be performed and...
Please explain. 0/4 pts Question 5 Electrons exist in orbitals within an atom. Bohr's model described a single elec...
Please explain.
0/4 pts Question 5 Electrons exist in orbitals within an atom. Bohr's model described a single electron system well. But the energy level for orbitals change when as you add a second and more electron. In a single electron system, there are (a)_orbital(s) at the n-2 level. These n-2 orbital(s) exist at (b) sub-level(s) in the atom. In a multi-electron system, (c)_orbital(s) at the n-2 level. These n-2 orbital(s) exist at (d)sub-level(s) in the atom. Bohr was never...
b) Electrochemistry is the branch of physical chemistry that studies the relationship between electricity, as a...
b) Electrochemistry is the branch of physical chemistry that
studies the relationship between electricity, as a measurable and
quantitative phenomenon, and identifiable chemical change, with
either electricity considered an outcome of a particular chemical
change or vice versa. These reactions involve electric charges
moving between electrodes and an electrolyte (or ionic species in a
solution). Thus electrochemistry deals with the interaction between
electrical energy and chemical change. When a chemical reaction is
caused by an externally supplied current, as in...
6. (2 pts) During project 2, you determined whether a LFER existed between the chemical shift val...
LFER = Linear free energy relationship
6. (2 pts) During project 2, you determined whether a LFER existed between the chemical shift value of the N H proton and substituent effects at X in the molecule below. The same experiment could be repeated, but instead varying substituents at Y. Assuming a LFER still exists in this case, predict the sign of p, and predict whether its magnitude would be greater than or less than ρ when X was varied. Give...
The free energy change for an oxidation-reduction reaction occurring at constant temperature and pressure is given by AGnFE where n is the moles of electrons transferred in the reaction, E is the cell potential of the reaction, and F is Faraday's constant. Use this relationship to answer the problem below In one half-cell of a voltaic cell, the following reaction occurs: Be(s) → Be2+(aq) + 2 e. In the other half-cell of the voltaic cell, the following reaction occurs: 2...
3. (10 pts) Name the law that establishes a relationship between the rotation of the electric field strength and the magnetic flux density. Explain in a sentence the meaning of the negative sign of the term with the magnetic flux density. 4. (10 pts) An electron at rest in vacuum is accelerated by a momentary electric field E 438 mV / m z for 325 us and then enters a magnetic field B 257 uT y Determine the direction of...
3. (10 pts) Name the law that establishes a relationship between the rotation of the electric field strength and the magnetic flux density. Explain in a sentence the meaning of the negative sign of the term with the magnetic flux density. 4. (10 pts) An electron at rest in vacuum is accelerated by a momentary electric field E = 438 mV/m z for 325 us and then enters a magnetic field B = 257 UT y. Determine the direction of...
Help please
EXPERIMENT: 26 ELECTROCHEMISTRY: GALVANIC AND ELECTROLYTIC CELLS Materials Required : 50 mL beakers (2) test tubes sandpaper glass U-tube cotton voltmeter 9.0 V battery connecting wires with alligator clips (2) thermometer iron nail paper clips (2) copper wire magnesium ribbon magnesium sulfate (MgSO) copper sulfate pentahydrate (CuSO, 5H,O) sodium chloride (NaCI) saturated sodium chloride (NaCI)solution phenolphthalein indicator SAFETY PRECAUTIONS: EYE PROTECTION MUST BE WORN AT ALL TIMES IN LABORATORY. Purpose of Experiment: Oxidation-reduction reactions will be performed and...
Please explain.
0/4 pts Question 5 Electrons exist in orbitals within an atom. Bohr's model described a single electron system well. But the energy level for orbitals change when as you add a second and more electron. In a single electron system, there are (a)_orbital(s) at the n-2 level. These n-2 orbital(s) exist at (b) sub-level(s) in the atom. In a multi-electron system, (c)_orbital(s) at the n-2 level. These n-2 orbital(s) exist at (d)sub-level(s) in the atom. Bohr was never...
b) Electrochemistry is the branch of physical chemistry that
studies the relationship between electricity, as a measurable and
quantitative phenomenon, and identifiable chemical change, with
either electricity considered an outcome of a particular chemical
change or vice versa. These reactions involve electric charges
moving between electrodes and an electrolyte (or ionic species in a
solution). Thus electrochemistry deals with the interaction between
electrical energy and chemical change. When a chemical reaction is
caused by an externally supplied current, as in...
LFER = Linear free energy relationship
6. (2 pts) During project 2, you determined whether a LFER existed between the chemical shift value of the N H proton and substituent effects at X in the molecule below. The same experiment could be repeated, but instead varying substituents at Y. Assuming a LFER still exists in this case, predict the sign of p, and predict whether its magnitude would be greater than or less than ρ when X was varied. Give...
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