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[Visitor (120.204.*.*)]answers [Chinese ]Time :2021-09-26
Alenus ionization doctrine
The theory of ionization introduces the theory of acid and alkali into the gate of modernization. In 1887, Swedish chemist Alenus first proposed the famous theory of ionization: electrolytes are dissocuted into positively charged cations and negatively charged anions in lodging.
The first practical basis of the ionization theories is the conductive appearance of the solution. If two carbon rod electrodes are placed in the electrolyte ZnI2 solution, the positive and negative poles of the battery are attached respectively. We are used to calling the electrode connected to the positive pole of the battery anode, and the electrode connected to the negative pole of the battery is called the cathode. Since the potential of the anode is higher than that of the cathode, the negatively charged anion (I-) migrates to the anode and discharges on the anode (some people call the anion anode anoplasty); If we take a light bulb in the circuit. The light bulb glows, followed by a current meter, which turns. This is the phenomenon of solution conduction.
According to the difference of solution conductivity, the solute can be divided into electrolytes and non-electrolytes, electrolytes can also be distinguished into strong electrolytes and weak electrolytes.

Strong electrolytes are ionized in the solution in whole or most, while weak electrolytes are only a small part of ionization. The ions generated by ionization carry the sum of positive and negative charges equal, so the entire solution is electrically neutral.

The second experimental basis of the ionization theory is that the dependence of the electrolyte solution is beyond the norm.

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