Would the charge on the electrode at point A have to be positive or negative to

Question

Would the charge on the electrode at point A have to be positive or negative to attract a nega- tively charged hydroxide ion (OH-)? Would the charge on the electrode at point B have to be positive or negative to attract a posi- tively charged hydronium ion (H,O")? What should the polarity of the electrodes be in order to induce proton transfer from one water molecule to the next, moving from left to right (point A to point B), considering that protons are positively charged particles? Charge on the electrode at point A (positive or negative?): Charge on the electrode at point B (positive or negative?): An electric current is a flow or movement of charged particles. In a metal wire, electrons are the charge carriers, hopping from atom to atom. In solution, it is the movement of ions in solution that constitutes the electric current. Note that both positive and negative ions contribute to the electric current in solution 3. Explain in simple language why ions move and in which direction they move in the presence of an electric field created between two electrodes having opposite charges

Explanation / Answer

Basic questions from electro chemistry

1. The negatively charged OH- ion will be attracted by positively charged Electrode( Point - A), and positively charged H3O+ ion will be attracted by negatively charged electrode (Point -B).

To donate an H+ ion from a water molecule, there should be a positively charge electrode to attract the OH- ion from it, and there after one negatively charged electrode(B) will attract the H+ and will form H3O+ ion.

H+ + H2O H3O+

3.

Generally flow of electrons will leads to the generation of electricity, while ions are produced by either donating electrons or by accepting electrons. when donating electrons; they will get positive charge, and negative charge ions will obtained by accepting electrons. Generally in metallic conductors like Cu, Al, Zn flow of electrons are the basic reason for electrical conductance. While in electrolytic conductors like NaCl, Kcl ions are flowing.

Solutions are electrolytes or they contains cations ( positive charge ) and anions ( negative charge )

eg: NaCl Na+ + Cl-

in the presence of electric field, current flowing from positive electrode to negative electrode.

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