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 [...
Edexcel A Level Chemistry:復習筆記5.1.2 Equilbrium Constant Calculations
Equilibrium Constant Calculations Calculations involving?Kc In the equilibrium expression each figure within a square bracket represents the concentration in?mol dm-3 The?units?of?Kc?therefo...
2023年AP物理2課程報名開啟！中國大陸考區報名即將截止
2023年AP物理2課程報名開啟！不要錯過這次的機會！AP物理2是一門以代數為基礎的大學物理入門課程。學生通過探究性的研究來培養他們對物理的理解，研究主題包括：流體、熱力學、電力、場和勢、電路、磁性和電磁感...
2022年CAIE夏季Alevel大考成績數據總結！
2022年AS和A-level的夏季大考成績已經出分將近大半個月了，眾多的A-level學子都用自己辛勤的付出交付了滿意的答卷。 那么對于AS年級的學生而言，一份滿意的成績就意味著接下來申請大學有了有力的保障。對于A2年級...
Edexcel A Level Chemistry:復習筆記5.1.1 Deducing Kp Expressions
Kp Expressions We have seen previously that equilibrium reactions can be quantified by reference to an equilibrium expression and equilibrium constant The?equilibrium expression?links the?eq...
Edexcel A Level Chemistry:復習筆記4.2.4 Qualitative Analysis
Core Practical 7: Analysis of Inorganic and Organic Unknowns Test Tube Reactions Simple test tube reactions can be done to identify the following ions: Ammonium ions (NH4+) Halide ions (X-) ...
