What product(s) forms at the cathode in the electrolysis of an aqueous solution of NaCl? answer...
What product(s) forms at the cathode in the electrolysis of an aqueous solution of NaCl?
answer is H2 and OH-. Please explain why!
Homework Answers
Electrolysis is a method of separating bonded elements and compounds by passing an electric current through them. An ionic compound NaCl is dissolved with solvent H2O, so that its ions are available in the liquid. An electrical current is applied between a pair of inert electrodes immersed in the liquid. Cathode is a negative charged electrode. Cathode attracts the Na+ from NaCl and H+ ions H2O. Only the H+ are discharged at the cathode because hydrogen has more electron affinity than sodium . Na can lose electrons more easily as compared to H2, but H2 will accept electrons faster at the cathode and gets discharged first. The H+ ions are reduced by electron gain to form hydrogen molecules at the negative electrode which attracts positive ions.
2H+(aq) + 2e– -----> H2(g)
In other words,
2H2O(l) + 2e– -------> H2(g) + 2OH-(aq)
Hence at cathode, water dissociate into H2 and OH-.
Add Answer to:
What product(s) forms at the cathode in the electrolysis of an
aqueous solution of NaCl?
answer...
QUESTION 15 What product(s) forms at the anode in the electrolysis of an aqueous solution of...
QUESTION 15 What product(s) forms at the anode in the electrolysis of an aqueous solution of K2500 A. H2 and OH B. Sulfur ОС. К D.O2 and H+
What product forms at the anode in the aqueous electrolysis of MnCl2? Cl2(g) Mn(s) H2(g) and...
What product forms at the anode in the aqueous electrolysis of MnCl2? Cl2(g) Mn(s) H2(g) and OH -(aq) O2(g) and H+(aq)
What product forms at each electrode in the aqueous electrolysis of the following salts? I_2(s) H_2(g)...
What product forms at each electrode in the aqueous electrolysis of the following salts? I_2(s) H_2(g) and OH -(aq) Fe(s) 0_2(g) and H+(aq)
(a) In the electrolysis of aqueous NaCl, how many liters of H2(g) (at STP) are generated...
(a) In the electrolysis of aqueous NaCl, how many liters of H2(g) (at STP) are generated by a current of 85.4 A for a period of 69.2 min? The unbalanced chemical reaction representing this electrolysis is shown below. NaCl(aq) + H2O(l) --> Cl2(g) + H2(g) + NaOH(aq) _____ liters of H2(g) is generated by this electrolysis. (b) How many moles of NaOH(aq) are formed in the solution in this process? _____ moles of NaOH(aq) are formed.
Sodium hydroxide can be produced by electrolysis of NaCl solution 2NaCl(aq) + 2 H2O(l) à 2...
Sodium hydroxide can be produced by electrolysis of NaCl solution 2NaCl(aq) + 2 H2O(l) à 2 NaOH(aq) + H2(g) + Cl2(g) A 100 g of 20 % aqueous solution of NaClwas used and conversion of NaCl is 90 %. Neglecting solubility of H2 and Cl2 in water, calculate % NaOH in the aqueous product. Use molecular balance method.
Sodium hydroxide can be produced by electrolysis of NaCl solution 2NaCl(aq) + 2 H2O(l) à 2...
Sodium hydroxide can be produced by electrolysis of NaCl solution 2NaCl(aq) + 2 H2O(l) à 2 NaOH(aq) + H2(g) + Cl2(g) A 100 g of 20 % aqueous solution of NaClwas used and conversion of NaCl is 90 %. Neglecting solubility of H2 and Cl2 in water, calculate % NaOH in the aqueous product. use molecular balance method
Name: Electrochemistry and Equivalent Mass Figure 4: Electrolysis of NaCl(a) "brine" solution. 4. Refer to...
Name: Electrochemistry and Equivalent Mass Figure 4: Electrolysis of NaCl(a) "brine" solution. 4. Refer to figure 4, an illustration of the electrolysis of a NaCl(aq) solution, called a brine". This method is used to manufacture chlorine gas and sodium hydroxide. Chlorine is widely used to purify water, as a disinfectant, and in the making of important compounds such as chloroform, a compound used in the production of Teflon. Chloride ions are oxidized in the anode half-cell and water is reduced...
What is produced at each eWhat is produced at each electrode in the electrolysis of an aqueous...
What is produced at each electrode in the electrolysis of an aqueous solution of both NaBr and AgF ? Classify as Anode, Cathode, or Not Produced1. Na(s)2. F2(g)3. Ag(s)4. Br2(l)5. O2(g)6. H2(g)I have tried these but 2 are wrong1. Anode2. Anode3. Cathode4. Cathode5. Not Produced6. Not Produced
a) What is electrolysis? (b) Are electrolysis reactions thermo- dynamically spontaneous? Explain. (c) What process occurs...
a) What is electrolysis? (b) Are electrolysis reactions thermo- dynamically spontaneous? Explain. (c) What process occurs at the anode in the electrolysis of molten NaCl? (d) Why is sodium metal not obtained when an aqueous solution of NaCl undergoes electrolysis?
During the electrolysis of MnCl2(aq), what is the product formed at the cathode? Take into account...
During the electrolysis of MnCl2(aq), what is the product formed at the cathode? Take into account an overvoltage of 0.57 V for the production of O2(g), 0.45 V for the production of H2(g) and 0.30 V for the production of Cl2(g). A) Cl2(g) B) H2O(l ) C) H2(g ) D) Mn(s)
QUESTION 15 What product(s) forms at the anode in the electrolysis of an aqueous solution of K2500 A. H2 and OH B. Sulfur ОС. К D.O2 and H+
What product forms at each electrode in the aqueous electrolysis of the following salts? I_2(s) H_2(g) and OH -(aq) Fe(s) 0_2(g) and H+(aq)
Name: Electrochemistry and Equivalent Mass Figure 4: Electrolysis of NaCl(a) "brine" solution. 4. Refer to figure 4, an illustration of the electrolysis of a NaCl(aq) solution, called a brine". This method is used to manufacture chlorine gas and sodium hydroxide. Chlorine is widely used to purify water, as a disinfectant, and in the making of important compounds such as chloroform, a compound used in the production of Teflon. Chloride ions are oxidized in the anode half-cell and water is reduced...
Most questions answered within 3 hours.
-
A young investment manager tells his client that the probability
of making a positive return with...
asked 1 minute from now -
Calculate the final discrete available-to-promise quantity for
Week 1 using the following table.
Weeks
1
2...
asked 29 minutes ago -
Bob is gambling in the casino. The probability that he will win
nothing is 0.2. The...
asked 1 hour ago -
A free electron and a free proton are exactly 0.70 cm apart.
A)
Find the magnitude...
asked 1 hour ago -
Identify and Describe the major sources of U.S law. Provide a
sport-related example of each.
asked 2 hours ago -
NASA's Ames Research Center in Mountain View, California, houses
a 20g centrifuge used to conduct research...
asked 3 hours ago -
I want a python code using recursion ONLY.
I cannot use any loops, dictionaries or modules....
asked 3 hours ago -
Tobin Supplies Company expects sales next year to be $450,000.
Inventory and accounts receivable will increase...
asked 3 hours ago -
Give the relative rates for the following with a neighbor at your
desk
PH3(g) to P4(g)...
asked 4 hours ago -
Suppose Acap Corporation will pay a dividend of $2.87 per share
at the end of this...
asked 4 hours ago -
Scientists make earthquake forecasts using data from:
A.
geodesy
B.
seismology
C.
geology
D.
paleoseismology
E....
asked 4 hours ago -
Employee training can
be defined as planned organizational efforts to help employees
learn job-related knowledge, skills,...
asked 5 hours ago