Question
Distinguish between strong electrolyte and weak electrolyte.
| Strong electrolyte | Weak electrolyte | |
| 1. | The electrolytes ionizing completely or almost completely are strong electrolytes. | The electrolytes which dissociate to a smaller extent in aqueous solution are weak electrolytes |
| 2. | In strong electrolytes, there is no equilibrium between the ions and the nonionized molecules. | In weak electrolytes, an equilibrium exists between the ions and the nonionized molecules. |
| 3. | A reaction arrow (→) between the ions and nonionized molecules of the strong electrolyte is used to represent the ionization reaction | A double arrow (⇌) between the ions and nonionized molecules of the weak electrolyte is used to represent the ionization reaction. |
| 4. | e.g. Strong acids, strong bases and salts. | e.g. Weak acids and weak bases |
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| $Time /s$ | $\left[ N _2 O _5\right] / M$ | $\left[ NO _2\right] / M$ | $\left[ O _2\right] / M$ |
| $0$ | $0.0300$ | $0$ | $0$ |
| $200$ | $0.0213$ | $0.0174$ | $0.00435$ |
| $400$ | $0.0152$ | $0.0296$ | $0.00740$ |
| $600$ | $0.0108$ | $0.0384$ | $0.00960$ |