Reference no: EM132951238

Question 1 What products are produced when an aqueous solution of cobalt(II) iodide is placed in an electrolytic cell?

a. I2(s) + H2(g) + Co(OH)2(s)

b. Co(s) + I2(s)

c. H2(g) + O2(g)

d. Co(s) + O2(g) + HI(aq)

Question 2 What are the products made in the electrolysis of an aqueous solution of calcium bromide?

A .Ca(s) + Br2(l)

B. Ca(s) + O2(g) + H+(aq)

C. Br2(l) + H2(g) + OH-(aq)

D. H2(g) + O2(g)

Question 3 What products will be produced by the electrolysis of an aqueous solution of tin(II) iodide?

a. Sn(s) + I2(s)

b. Sn(s) + Sn4+(aq)

c. I2(s) + H2(g) + OH-(aq)

d. Sn(s) + O2(g) + H+(aq)

Question 4 What are the products obtained by the electrolysis of a solution of aluminum chloride?

a. Cl2(g) + H2(g) + OH-(aq)

b. Al(s) + Cl2(g)

c. Al(s) + O2(g) + H+(aq)

d. H2(g) + O2(g)

Question 5 What is produced at the cathode when a solution of magnesium iodide is placed in an electrolytic cell?

options:

a. magnesium metal

b. iodine solid

c. hydrogen gas and hydroxide ions

d. oxygen gas and hydrogen ions

Question 6 What is the electrical potential required for the electrolysis of an aqueous solution of nickel(II) fluoride? _________V

Question 7 How many moles of electrons have been transferred if a cell runs at (8.5000x10^0) A for (7.40x10^0) hours? (answer to 3 SD in moles)

Note: Your answer is assumed to be reduced to the highest power possible.

Question 8 If (8.50x10^0) g of a nickel electrode has been consumed in a standard nickel-silver cell, how many moles of electrons have been transferred? (answer to 3 s.d. in moles)

Note: Your answer is assumed to be reduced to the highest power possible.

Question 9 What is the change in mass (in grams) of the cathode if a (6.5000x10^-1) A current runs for (1.80x10^0) h during the electrolysis of a solution of silver nitrate?

Question 10 How long will an electrolytic cell containing a solution of cadmium(II) iodide need to run at a current of (5.50x10^0) A to deposit (4.4000x10^0) g of mass at the anode? (answer to 3 significant digits in seconds)

Question 11 What current is required to plate (5.50x10^0) g of silver from a silver nitrate solution in (1.000x10^1) hours? (answer to 3 SD in Amps)