辅中国际课程中心FICC最新招生信息公布！
辅中国际课程中心FICC，是Canada King's School在中国的第二所分校，学校坚持以“培养具有21世纪未来公民素养的终生学习者”为目标，常年保持高TOP校录取率。 学生入读辅中国际FICC，即可注册加拿大OSSD学籍；完成...
IB DP Chemistry: HL复习笔记19.1.5 Free Energy & Eº
Free Energy & Eº Previously we have seen the concept and term free energy, ΔGθ Free energy is a measure of the available energy to do useful work and takes into account the entropy change, ΔSθ,...
IB DP Chemistry: HL复习笔记19.1.4 Quantitative Electrolysis
Quantitative Electrolysis Michael Faraday showed, in 1833, that the amount of products obtained is dependent on the quantity of electrical charge passed through the cell Electrical charge is a meas...
IB DP Chemistry: HL复习笔记19.1.3 Electrolysis of Aqueous Solutions
Electrolysis of Aqueous Solutions We have seen previously how simple binary compounds can be electrolysed when molten and the products of electrolysis can be predicted using our knowledge of the io...
2023美本申请季来临，美国大学ED/EA/RD/ED2申请时间截点和政策了解一下！
对于2023届的学生来说，从大学调研、选校，到ED/EA/RD/ED2申请时间截点，再到文书、个人陈述等材料的准备......一系列的时间、任务、要求，已经伴随着申请季的开始悄然而至。清晰了解美国大学不同阶段申请的时间...
IB DP Chemistry: HL复习笔记19.1.2 The Standard Hydrogen Electrode
The Standard Hydrogen Electrode The absolute value of a half cell potential cannot be measured, only differences in potential between pairs of half-cells. For this reason, it is necessary to have a...
IB DP Chemistry: HL复习笔记19.1.1 Electrochemical Cells
Electrochemical Cells We have seen previously that redox reactions involve simultaneous oxidation and reduction as electrons flow from the reducing agent to the oxidizing agent Which way electrons ...
IB DP Chemistry: HL复习笔记18.2.2 Acid & Base Problem Solving
Acid & Base Calculations pH The acidity of an aqueous solution depends on the number of H3O+ ions in solution pH is defined as: pH = -log [H3O+] Where [H3O+] is the concentration of H3O+ ions i...
IB DP Chemistry: HL复习笔记18.2.1 Acid & Base Dissociation Constants
Acid & Base Dissociation Constants Weak acids A weak acid is an acid that partially (or incompletely) dissociates in aqueous solutions For example, most carboxylic acids (e.g. ethanoic acid), H...
IB DP Chemistry: HL复习笔记18.1.5 Salt Hydrolysis
Salt Hydrolysis An ionic salt is formed from the neutralisation reaction of an acid and base Neutralisation The ionic salt, MA, formed will dissociate in water Hydrolysis is where water is used to...
IB DP Chemistry: HL复习笔记18.1.4 Buffers
Buffers A buffer solution is a solution which resists changes in pH when small amounts of acid or base are added A buffer solution is used to keep the pH almost constant A buffer can consist of wea...
IB DP Chemistry: HL复习笔记18.1.3 Indicators
Indicators An acid-base indicator is a weak acid which dissociates to give an anion of a different colour Consider a weak acid, HIn: HIn (aq) + H2O (l) ⇌ H3O+ (aq) + In– (aq) colour 1 ...
