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HKDSE 化學補習 2025｜朗林化學 奪5** 實戰班
太子・藍田・沙田・荃灣 四區實體 + Zoom 雙軌教學
Electrochemistry（電化學）高頻考點精解
2025 DSE 化學 Paper 1 電化學部分佔比約 18%，屬於高頻 + 高分區。本文根據最新 Google Helpful Content Update 原則，結合同學常錯概念，整理 5 條經典題目及詳細題解，助你掌握 Electrochemical Cell、Standard Electrode Potential、Electrolysis 等關鍵術語。
Calculate the E°cell for the reaction between Zn and Cu²⁺. (Given E°Zn²⁺/Zn = −0.76 V, E°Cu²⁺/Cu = +0.34 V)
Explain why the mass of the copper electrode increases in a Daniell cell.
In the electrolysis of concentrated NaCl(aq), state the product at the anode and explain using selective discharge.
A student uses a salt bridge in a voltaic cell. State its two functions.
Predict the products of electrolysing CuSO₄(aq) using copper electrodes.
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#朗林化學
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朗林化學 provides premium HKDSE Chemistry tutoring with a focus on high-yield topics such as Electrochemistry. Our structured approach helps students master Standard Electrode Potential, voltaic cells, and electrolysis through targeted practice and clear explanations.
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