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1.ion concentration, under the same conditions, the ion concentration is large and the conductivity is strong. 2.
The number of charges carried by an ion, the higher the charge of the ion, the stronger the conductivity. 3.The strength of the electrolyte, under the same conditions, the conductivity of the strong electrolyte solution is greater than that of the weak electrolyte solution.
4.The temperature of the solution, the higher the temperature, the stronger the conductivity. 5.
The type of electrolyte, under the same conditions, the type of electrolyte is different, and the conductivity is also different. For example, at the same temperature, the conductivity of CaCl2 and NaCl solutions of the same concentration is different, and the weak conductivity of the solution does not indicate that the ionization degree of the electrolyte is small, even if the aqueous solution with a strong electrolyte has a small ion concentration, the conductivity is also weak.
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In aqueous solution, some substances will automatically decompose into the form of ions, the existence of an ionic form, depending on the concentration of ions, first of all, to determine whether it is a strong electrolyte or a weak electrolyte (some of which will also involve a little ionization equilibrium concept, it is recommended that you check the textbook of the second year of high school.
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It is related to the temperature of the solution and the impurities (electrolytes) contained in the solution.
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Ion concentration, i.e., the number of ions per unit volume.
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Ion concentration refers to the mass fraction of ions in a solution.
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Conductivity of solutions in junior high chemistry.
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For aqueous solutions, it can be said that all aqueous solutions contain free ions, because water itself can ionize hydrogen ions and hydroxide ions, so all aqueous solutions have a certain conductivity, but the conductivity is strong and weak.
Pure water: Contains freely moving hydrogen ions and hydroxide ions, and conducts electricity weakly due to the weak ionization capacity of water.
Non-electrolyte solutions: such as alcohol, sucrose, etc., these solutes are extremely difficult to ionize, and the ionization ability is not as good as water, so the conductivity is similar to that of water.
Weak electrolyte solutions: such as acetic acid, ammonia, etc. These solutes have a greater ionization capacity than water, contain more free-moving ions, and conduct electricity more than water.
Taking acetic acid as an example, acetic acid can be ionized into acetate and hydrogen ions in water, but not all of them can be ionized, only a small part of ionization can be ionized (the degree of ionization is related to the concentration, the higher the concentration, the smaller the proportion of the ionized part).
Strong electrolyte solutions: such as salt water, sodium hydroxide, sulfuric acid, etc. The ionization capacity of these solutes is very large, and it can be approximated that all of them are ionized, taking sodium chloride as an example, after sodium chloride is dissolved in water, all of them are ionized into chloride ions and sodium ions, and the conductivity is very strong.
As for which ions solutes can be ionized into, it is recommended to learn about electrolytes and other related knowledge.
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Answer: The conductivity of the solution is related to a variety of factors, and these factors should have: 1
Ion concentration, under the same conditions, the large concentration of envy ions has a strong conductive ability. 2.The number of charges carried by an ion, the higher the charge of the ion, the stronger the conductivity.
3.The conductivity of the strong electrolyte solution is greater than that of the weak electrolyte solution under the same conditions.
1: Electrolytes.
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Conductivity of solutions in junior high chemistry.
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