Ding dong! *Open the door
Watcha doinn? (Phineas and Ferb's style)
Pick one topic, and read. Electrochemistry it is. The basic of all, I am sure you guys know the terms which are anion, cation, cathode, anode... etc.
Wallaweh, I am still gonna write it here anyhow. As far as I concern, I ain't a good storyteller. So, it might be a one boring post. Sorry okok.
Cation: positively charged ion formed when atoms lose electron
Cathode: negative electrode
Anion: negatively charged ion formed when atoms gain electron
Anode: positive electrode
I read about the electrolysis things. For simple electrolytic cell, I am quite sure most of you are common with it. It is simple anyway. Then, should I share about Brine? Ok I should. The electrolysis of Brine. For beginning, Brine is a concentrated sodium chloride solution and yeah it is salt. As it is concentrated, it is used to preserve veges. fruits.
Above is the diagram for diaphragm cell electrolysis of NaCl. The porous part for the diaphragm is not clearly seen in the diagram. But trust me, it should be porous. For the anode, do use titanium electrode (left -hand-side) and steel electrode for cathode(right-hand-side). When the brine goes in from the LHS, at the anode, it attract cation which is chloride ion. As the ions involved in this electrolysis are hydroxide ion, chloride ion, hydrogen ion and sodium ion, the only ion left at the LHS is only chloride ion. The remain three ions are passing across the diaphragm and reach the RHS which is the cathode side.
Products:
At anode: Chlorine gas is released
At cathode: Hydrogen gas is released
In the end, sodium hydroxide is taken out from the process. Why NaOH? Due to the reaction happens between the sodium ion and hydroxide ion. at the cathode compartment.
Oh yeah, why we are using the porous asbestos diaphragm in our diagram? Because we want to prevent the sodium hydroxide (NaOH) reacting with the chlorine formed at the anode. That's why we channel em to the cathode's side.
I think that's all kowt. Dapat kan the picture for what I am reading today? To write all, this would be the longest post ever lah, so I summarise it as simple as I could.
Ya Allah peliharalah ingatan hamba mu ini. Ameen.

