生化醫學方向學生該如何選擇AP科目？2023年AP社會考生如何報名考試？
AP作為美國“大學預科課程”，分為三十幾個科目，更側重考察的是學生在某一學科領域的能力。在美國大學的申請過程中，AP分數的重要性正在逐漸上升。那么AP是不是考得越多越好？到底該怎么去選才能助力未來的專業申...
Edexcel A Level Chemistry:復習筆記8.2.4 Aspirin Preparation
Core Practical 16: Preparation of Aspirin This practical covers a number of key laboratory skills use appropriate apparatus to record a range of measurements use water bath or electric heate...
2023年AP考試報名工作正式啟動，美國前30大學對AP成績有何要求？
美國大學先修課程（Advanced Placement），簡稱AP課程，是由美國大學理事會（The College Board）在高中階段開設的具有大學水平的課程，主要適合計劃在美國就讀本科的高中生學習，在全世界范圍內（包括美國本土）...
Edexcel A Level Chemistry:復習筆記8.2.3 A-Level Qualitative Analysis
Core Practical 15: Analysis of Inorganic and Organic Unknowns Testing for positive ions Simple test tube reactions can be done to identify the following positive ions: Group 2 ions (M2+) Amm...
2022MIT PRIMES項目介紹，如何參加這個高含金量項目？
和國際科研賽事相比，MIT PRIMES因為有地域限制，相對比較小眾。但作為由MIT主辦的科研項目，PRIMES其實具有極高的含金量。 它被譽為通往MIT的捷徑，超40%的參與者錄取了MIT！除了MIT，它也是其他TOP美本招生官眼...
Edexcel A Level Chemistry:復習筆記8.2.2 Transition Metal Complexes
Core Practical 12: Preparing a Transition Metal Complex Method Weigh between 1.4?g and 1.6?g of copper(II) sulfate. To do this you should weigh a test tube and record its mass. Then add the ...
Edexcel A Level Chemistry:復習筆記8.2.1 Redox Titration
Core Practical 11: Redox Titration Redox Titrations In a?titration, the concentration of a solution is determined by titrating with a solution of known concentration. In redox titrations, an...
Edexcel A Level Chemistry:復習筆記8.1.4 Activation Energy
Core Practical 14: Finding the Activation Energy of a Reaction In this practical the activation energy for the reaction between bromide ions and bromate(V) ions will be determined BrO3-?+ 5B...
Edexcel A Level Chemistry:復習筆記8.1.3 Rates of Reaction
Core Practical 13a: Titrimetric Methods The reaction between iodine in an acidic solution and propanone is CH3COCH3?(aq) + I2?(aq) →?CH3COCH2I?(aq) + H+?(aq) +?I-?(aq) We can follow the rate...
Edexcel A Level Chemistry:復習筆記8.1.2 Electrochemical Cells
Core Practical 10: Investigating Electrochemical Cells Measuring the EMF of a cell To measure a cell EMF you will need Two small beakers, around 75 cm3?capacity Strips of suitable metals suc...
Edexcel A Level Chemistry:復習筆記8.1.1 Finding Ka Values
Core Practical 9: Finding Ka for a Weak Acid The?Ka?of a weak acid may be determined by finding the pH at the half equivalence point At the half equivalence point?Ka?= [H+] Key steps in the ...
Edexcel A Level Chemistry:復習筆記7.7.5 Other Chromatography
Types of Column Chromatography Column Chromatography In column chromatography, the column is often a long vertical glass tube or in the laboratory a burette is suitable An inert solid (usual...
