Answer to Question #172412 in Organic Chemistry for Jeremy

Question

1. In a galvanic cell is the anode the positive or negative electrode? 

2. What is the direction of electron flow in the external circuit of a galvanic cell? 

3. If aluminum and tin were used as the electrodes in a galvanic cell which metal would be the anode and which metal would be the cathode. Explain why.

Answer 1

1. The anode is the negative electrode

2. from anode to cathode

3. The metal with the relatively higher electropositivity which in this case is Aluminium would be the anode and the metal with the lower electropositivity which in this case is Tin would be the cathode.