北京公立國際部高中2022申請季錄取數據分析！
對于考慮國際學校的家庭來說，每個家長都有一套自己的標準。但無論有多少標準最后肯定繞不開的是名校錄取率。2022申請季已經落下帷幕，近期北京國際學校紛紛公布了2022年畢業生大學錄取成績，在疫情的情況下，雖...
CIE A Level Chemistry復習筆記5.5.1 Acids & Bases
Conjugate Acids & Bases A?Br?nsted acid?is a species that can donate a proton For example, hydrogen chloride (HCl) is a Br?nsted acid as it can lose a proton to form a hydrogen (H+) and chlorid...
CIE A Level Chemistry復習筆記5.4.6 Standard Electrode Potentials: Free Energy Change
Calculating Free Energy Change Using Standard Electrode Potentials The?standard free energy change?can be calculated using the standard cell potential of an electrochemical cell ΔG??= - n x?Ecell??...
CIE A Level Chemistry復習筆記5.4.5 Nernst Equation
The Nernst Equation Under non-standard conditions, the cell potential of the half-cells is shown by the symbol?Ecell The effect of changes in?temperature?and?ion concentration?on the?Ecell?can be d...
CIE A Level Chemistry復習筆記5.4.4 Non-Standard Conditions
Effect of Concentration on Electrode Potential Changes in?temperature?and?concentration?of aqueous ions will affect the standard electrode potential (E?) of a half-cell Under these?non-standard con...
CIE A Level Chemistry復習筆記5.4.3 Electrochemical Series & Redox Equations
Electrochemical Series The?E??values of a species indicate how?easily?they can get?oxidised?or?reduced In other words, they indicate the relative?reactivity?of elements, compounds and ions as?oxidi...
CIE A Level Chemistry復習筆記5.4.2 Standard Cell Potential: Calculations, Electron Flow & Feasibility
Calculating Standard Cell Potential Once the standard electrode potentials (E?) of the half-cells are determined, the?standard cell potential?(Ecell?) can be calculated by?subtracting?the?less?posi...
CIE A Level Chemistry復習筆記5.4.1 Electrolysis: Calculations
Calculations in Electrolysis Faraday’s constant?can be used to calculate: The?mass?of a substance?deposited?at an electrode The?volume?of gas?liberated?at an electrode Calculating the mass of a sub...
CIE A Level Chemistry復習筆記5.3.4 Measuring the Standard Electrode Potential
Measuring the Standard Electrode Potential There are three different types of half-cells that can be connected to a standard hydrogen electrode A metal / metal ion half-cell A non-metal / non-metal...
2026屆英國本科錄取進入最后階段，最新補錄信息來了
7月5日，IB成績下發，7月6日下午英國時間12:00起，IBDP考生可以開始上網查成績。與此同時，7月5日UCAS補錄開始開放，不過7月5日開始early clearing，適用于IB和AP應屆生，以及已獲得最終成績的往屆生。8月18日，...
CIE A Level Chemistry復習筆記5.3.3 Standard Electrode & Cell Potentials
Standard Electrode & Standard Cell Potentials Electrode potential The?electrode (reduction) potential?(E) is a value which shows how easily a substance is?reduced These are demonstrated using r...
CIE A Level Chemistry復習筆記5.3.2 Faraday's Law & Avogadro
Faraday's Law The?amount?of substance that is formed at an electrode during?electrolysis?is proportional to: The amount of?time?where a constant current to passes The?amount?of?electricity, in coul...
