A. 0.066 g
48. A. 1018
CA salt of strong acid and weak acid
D. A salt of weak acid and weak base
42. What volume of 2.0 M NaOH is required to completely neutralize 25.0 ml, of 2.70 MH.S07
A. 67.5 mL
B. 33.8 mL
C. 22.5 ml.
D. 16.9 mL.
43.
Which of the following statement describes the similarity between voltaic cells and electrolytic cells?
A. Reduction half-reaction occurs at the anode in both types of cells.
B. Both types of cells contain two electrodes in contact with electrolytes
C. The anode is positive and cathode is negative in both types of cells. D. Oxidation half-reaction occurs at the cathode in both types of cella.
44.
WITTE LO
Which of the following occurs during electrolysis of the molten binary salt of a metal? A. Reduction will take place at the anode
B. Oxidation will take place at the cathode
C. No current will flow through the molten salt D. The metal in the salt will deposit on the cathode
45. Which one of the following statements is FALSE regarding the electrolysis of dilute sulfuric acid solution?
A. Oxygen gas is produced at the anode.
B. Hydrogen gas is formed at the cathode
C. At the anode, SOions are discharged
D. At the cathode, H ions are discharged
46. Which of the following statement is FALSE regarding electrolysis?
A. Inert electrode is an electrode that does not affect the product of electrolysis.
B. Active or reactive electrode is an electrode that affects the product of electrolysis.
C. Preferential discharge is the ease in which ions are discharged in preference of other ions during D. The electrical conduction of electrolytes is due to the movement of delocalized electrons.
electrolysis.
47. Calculate the mass of copper deposited by the electrolysis of copper (II) sulfate solution placed in series with a silver nitrate solution, when 0.108 g of silver is being deposited. (Molar mass of Ag=108 g/mol and molar
mass of Cu-63.5 g/mol)
A. 0.066 g
C. 0.3178
D. 0.635 g
B. 0.032 g 48. What mass of chlorine gas can be produced when a curent of 0.452 A is passed through molten CaCh fes
1.5 hours? (IF-96,500 Cmol)
A. 1018
B. 0.507
C. 0.898z
D 1.795
1 answer
1 answer