Question

how do you measure cell? write all the step​

Answer 1

In a galvanic cell, current is produced when electrons flow externally through the circuit from the anode to the cathode because of a difference in potential energy between the two electrodes in the electrochemical cell. In the Zn/Cu system, the valence electrons in zinc have a substantially higher potential energy than the valence electrons in copper because of shielding of the s electrons of zinc by the electrons in filled d orbitals. Hence electrons flow spontaneously from zinc to copper(II) ions, forming zinc(II) ions and metallic copper. Just like water flowing spontaneously downhill, which can be made to do work by forcing a waterwheel, the flow of electrons from a higher potential energy to a lower one can also be harnessed to perform work.

Answer 2

Measuring cell size

1.)Place a stage micrometer on the stage of the microscope.

2)Line up one of the divisions on the eyepiece graticule with a fixed point on the stage micrometer.

3)Count the number of divisions on the eyepiece graticule that correspond with a set measurement on the stage micrometer.