2022-23學年AP考試報名正式開始！社會考生也可報名
今天，美國大學理事會College Board?宣布大陸2023年AP考試報名正式開啟。社會考生也可報名。下面是2023年AP考試報名流程。報名AP考試的同學，一定要記住每一個時間節點，以免錯過報名。 AP大考時間安排： 考試費...
2023年AP心理學課程報名開啟！中國大陸考區報名即將截止
就在剛剛，大學理事會主辦的AP發布通知，AP2022-23學年考試可以正式報名了！ 在2022-23學年，大學理事會繼續與Prometric合作管理國內的AP考試報名和考務工作。2023年AP心理學課程報名開啟！中國大陸考區報名即將...
Edexcel A Level Chemistry:復習筆記5.2.6 Titration Curves
Drawing & Interpreting Titration Curves During a titration a pH meter can be used and a pH curve plotted A pH curve is a graph showing how the pH of a solution changes as the acid (or ba...
Edexcel A Level Chemistry:復習筆記5.2.5 Measuring and Comparing pH
Measuring and Comparing pH Strong and weak acids The relative strengths of different acids can be determined by measuring the pH of equimolar aqueous solutions of the acids, at the same temp...
Edexcel A Level Chemistry:復習筆記5.2.4 Ionic Product of Water
Ionic Product of Water, Kw In all aqueous solutions, an equilibrium exists in water where a few water molecules dissociate into protons and hydroxide ions We can derive an equilibrium consta...
Edexcel A Level Chemistry:復習筆記5.2.3 Acid Strength
Acid Dissociation Strong acids A?strong acid?is an acid that?dissociates?almost?completely?in aqueous solutions HCl (hydrochloric acid), HNO3?(nitric acid) and H2SO4?(sulfuric acid) The posi...
Edexcel A Level Chemistry:復習筆記5.2.2 pH
Defining pH The acidity of an aqueous solution depends on the number of?H+?ions in solution The?pH?is defined as: pH = -log[H+] where [H+] is the concentration of hydrogen ions in mol dm–3 S...
Edexcel A Level Chemistry:復習筆記5.2.1 Br?nsted–Lowry Acids & Bases
Br?nsted–Lowry Acid & Base Theory The Br?nsted-Lowry Theory?defines acids and bases in terms of proton transfer between chemical compounds A?Br?nsted acid?is a species that can donate a ...
Edexcel A Level Chemistry:復習筆記5.1.3 Reaction Conditions & The Equilibrium Constant
Temperature & the Equilibrium Constant Changes in temperature?change?the equilibrium constants?Kc?and?Kp For an endothermic reaction such as: ???An increase in temperature: ???[H2] and [...
