Answer:
Anode half reaction;
Co(s) ----> Co^2+(aq) + 2e
Cathode half reaction;
2Ag^+(aq) + 2e-------> 2Ag(s)
Explanation:
A voltaic cell is an electrochemical cell that spontaneously produces electrical energy from chemical reactions. A voltaic cell comprises of an anode (where oxidation occurs) and a cathode (where reduction occurs). The both electrodes are connected with a wire . A salt bridge ensures charge neutrality in the anode and cathode compartments. Electrons flow from anode to cathode.
For the cell referred to in the question;
Anode half reaction;
Co(s) ----> Co^2+(aq) + 2e
Cathode half reaction;
2Ag^+(aq) + 2e-------> 2Ag(s)
Answer:
The answer to your question is: 6 ml of HCl
Explanation:
1.- Molarity of NaCl in solution
n = # of moles
M = n / volume (l)
n = M x v
n = (0.1) (0.030)
n = 0.003 moles of NaOH
2.- Number of moles of HCl that react
From the reaction 1 mol of NaOH ----------------- 1 mol of HCl
0.003 moles ----------------- x
x = (0.003 x 1) / 1 = 0.003 moles of HCl
3.- Volume of HCl that react
M = n/ V
V = n / M
V = 0.003 / 0.5
V = 0.006 l
V = 6 ml
