Current passes through a solution of sodium chloride. In 1.00 second, 2.68 x 10^16 Na+ ions arrive at the negative electrode and 3.92 x 10^16 Cl- ions arrive at the positive electrode.
What is the current passing between the electrodes?
Express your answer in milliamperes to three significant figures.
What is the direction of the current?
~away from the negative electrode or
~toward the negative electrode
I = Q/t
The Attempt at a Solution
the difference between 2.68x10^16 and 3.92x10^16 as a Na+ ion and Cl- ion carry precisely one electric charge each, and the charge of an electron is 1.60 x 10^-19 C
I = Q/t
I = (1.60 x 10^-19 )/1
I = 1.60 x 10^-19 A = 1.60 x 10^-16 mA
am I right?
Conventional current was defined early in the history of electrical science as a flow of positive charge, so it would be towards the negative electrode?