1 Explain chemically how an electrolytic cell works for both hydrolysis of water and electroplating. 2...
1
Explain chemically how an electrolytic cell works for both hydrolysis of water and electroplating.
2
Explain the relationship between Gibb’s Free Energy and a redox reaction’s E° value.
Homework Answers
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1
Explain chemically how an electrolytic cell works for both
hydrolysis of water and electroplating.
2...
Q1: a) Describe how a galvanic cell works and include a fully labelled sketch. Explain clearly...
Q1: a) Describe how a galvanic cell works and include a fully labelled sketch. Explain clearly what is occurring in each ‘side’. b) You add Mg to a beaker containing HCl(aq) and a gas is produced. Explain, chemically, what is happening and write a balanced equation for the reaction, including how many electrons are transferred. How could you harness the reaction to do useful work? c) The equation ΔGo = -nFEo is also applicable to half-reactions. Using standard reduction potentials,...
2. 6.4 KB) ELECTROLYSIS PROBLEMS 1. How many faradays are transferred in an electrolytic cell when...
2.
6.4 KB) ELECTROLYSIS PROBLEMS 1. How many faradays are transferred in an electrolytic cell when a current of 2.0 A flows for 12 hours? (1 faraday - 96,500 C) 2. A metal object is to be gold-plated by an electrolytic procedure using aqueous AuCl; electrolyte. How much gold may be deposited in 30 min by a constant current of 10.0 A? 3. What mass of nickel may be electropiated by passing a constant current of 7.2 A through a...
Electrolytic cells use electricity to cause a nonspontaneous redox reaction to occur. An electrolytic cell is...
Electrolytic cells use electricity to cause a nonspontaneous redox reaction to occur. An electrolytic cell is constructed using the following components: . a power source, such as a battery, • the substance that will undergo electrolysis, and • two inert electrodes (usually platinum), which serve as the electrical connection between the power source and the substance undergoing electrolysis. As with any cell, oxidation occurs at the anode and reduction occurs at the cathode. The oxidation of water, which produces oxygen...
An electrolytic cell is set up. Two inert electrodes are attached to an external 6V battery,...
An electrolytic cell is set up. Two inert electrodes are attached to an external 6V battery, and are placed into a solution. The solution is a 1.00 M aqueous solution of calcium iodide (CaI2 (aq)). Determine which half-reactions are happening at the cathode and the anode of the electrolytic cell and explain your answer. My teacher uses half reaction with water to solve but I don't understand how you chose which water half reaction to use since there are three...
1. Determine the mass (g) of aluminum deposited in an electrolytic cell using a current of...
1. Determine the mass (g) of aluminum deposited in an electrolytic cell using a current of 0.750 A for 1.2 hour (1 hour = 3,600 s) Al3+(aq) + 3e- ⟶ Al(s) 0.302 g 0.000839 g 0.625 g 0.906 g 2.20 g 2. The change in Gibbs free energy, ∆G°, for the following reaction at 298 K is 70.6 kJ/mol. 2NO₂(g) ⟶ 2NO(g) + O₂(g) What is Keqfor this reaction? 1.03 0.971 4.30 2.00 0.936 3.
Draw a diagram of the electrolytic cell from Part 1. Identify the cathode, anode, directions in...
Draw a diagram of the electrolytic cell from Part 1. Identify
the cathode, anode, directions in which the electrons, and ions
move. Show how the nickel atoms migrate from the anode and how they
deposit on the cathode. Show the power source and then identify the
positive and negative terminals of the power source. Identify the
positive and negative electrodes. Identify and write the oxidation
and reduction half reactions and write the mass of each electrode
at the start and...
1. Animal cells have a Na,K pump that couples the energy of ATP hydrolysis to transport 3 Na ions out of the cell and 2 K ions into the cell. Inside astrocytes, the concentration of Na is 20 mM and th...
1. Animal cells have a Na,K pump that couples the energy of ATP hydrolysis to transport 3 Na ions out of the cell and 2 K ions into the cell. Inside astrocytes, the concentration of Na is 20 mM and the concentration of K is 130 mM. The extracellular concentrations of Na and K are 145 mM and 5 mM, respectively. Calculate the energy required for the transport of Na and K , with this stoichiometry; assume that the cell...
Explain how the system shoed bellow works. 1. Anode Reactor Electrolyte Water/air separator Cathode PEM fuel...
Explain how the system shoed bellow works. 1. Anode Reactor Electrolyte Water/air separator Cathode PEM fuel cell Burner Cooler/ humidifier Motor/ generator Turbine Compressor Air intake
1.Explain how the nearest neighbor algorithm works. 2. Explain how the backpropagation algorithm works.
1.Explain how the nearest neighbor algorithm works. 2. Explain how the backpropagation algorithm works.
SHORT ANSWER 1. Explain how the technique of DNA fingerprinting works. 2. What is the purpose...
SHORT ANSWER 1. Explain how the technique of DNA fingerprinting works. 2. What is the purpose of using a restriction enzymes? 3. What is the technique of gel electrophoresis used for? 4. What is the overall charge on DNA and what gives DNA this charge? 5. If both the parents are carriers of sickle cell disease, what is the probability of having a child that has sickle cell disease? Draw a punnett square to determine the probabilty.
2.
6.4 KB) ELECTROLYSIS PROBLEMS 1. How many faradays are transferred in an electrolytic cell when a current of 2.0 A flows for 12 hours? (1 faraday - 96,500 C) 2. A metal object is to be gold-plated by an electrolytic procedure using aqueous AuCl; electrolyte. How much gold may be deposited in 30 min by a constant current of 10.0 A? 3. What mass of nickel may be electropiated by passing a constant current of 7.2 A through a...
Electrolytic cells use electricity to cause a nonspontaneous redox reaction to occur. An electrolytic cell is constructed using the following components: . a power source, such as a battery, • the substance that will undergo electrolysis, and • two inert electrodes (usually platinum), which serve as the electrical connection between the power source and the substance undergoing electrolysis. As with any cell, oxidation occurs at the anode and reduction occurs at the cathode. The oxidation of water, which produces oxygen...
Draw a diagram of the electrolytic cell from Part 1. Identify
the cathode, anode, directions in which the electrons, and ions
move. Show how the nickel atoms migrate from the anode and how they
deposit on the cathode. Show the power source and then identify the
positive and negative terminals of the power source. Identify the
positive and negative electrodes. Identify and write the oxidation
and reduction half reactions and write the mass of each electrode
at the start and...
Explain how the system shoed bellow works. 1. Anode Reactor Electrolyte Water/air separator Cathode PEM fuel cell Burner Cooler/ humidifier Motor/ generator Turbine Compressor Air intake
SHORT ANSWER 1. Explain how the technique of DNA fingerprinting works. 2. What is the purpose of using a restriction enzymes? 3. What is the technique of gel electrophoresis used for? 4. What is the overall charge on DNA and what gives DNA this charge? 5. If both the parents are carriers of sickle cell disease, what is the probability of having a child that has sickle cell disease? Draw a punnett square to determine the probabilty.
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