I am having a galvanic cell with the following half cell equations:

Anode--> 2Al(s) + 6OH --> 2Al(OH)3 + 6e-

Cathode--> 6H+ + 6e- --> 3H2(g)

So my cell is producing 6 electrons. Is there a way to calculate the current (ampere) generated using 6 electrons, theoretically?

P.S. sorry for the bad formatting but when I tried OH$^-$, it did not give me OH superscript - as shown.

  • 2
    \$\begingroup\$ Current is charge per time, so without a timeframe, nope. \$\endgroup\$
    – PlasmaHH
    Mar 6, 2016 at 23:13
  • \$\begingroup\$ @user510: Use back-slash, $ to start and end the inline MathJAX on this site. Double-$ will put formula on separate line. \$\endgroup\$
    – Transistor
    Mar 6, 2016 at 23:23
  • \$\begingroup\$ is that going to have to be through making a discharge curve? To figure out time \$\endgroup\$
    – user510
    Mar 6, 2016 at 23:25

1 Answer 1


From Wikipedia, the ampere:

The SI unit of charge, the coulomb, "is the quantity of electricity carried in 1 second by a current of 1 ampere". Conversely, a current of one ampere is one coulomb of charge going past a given point per second:

$$1~ A=1~C/s$$

and the coulomb:

It is equivalent to the charge of approximately \$ 6.242×10^{18} (1.036 ×10^{−5} mol) \$ protons, and −1 C is equivalent to the charge of approximately \$ 6.242×10^{18} \$ electrons.

So, from the above:

$$ 1~A = -6.242 \cdot 10^{18} ~ electrons~ per ~ second.$$

To figure out the current you'll need to know the number of electrons produced per second.


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