2022年CAIE夏季Alevel大考成绩数据总结!
2022年AS和A-level的夏季大考成绩已经出分将近大半个月了,众多的A-level学子都用自己辛勤的付出交付了满意的答卷。 那么对于AS年级的学生而言,一份满意的成绩就意味着接下来申请大学有了有力的保障。对于A2年级...
2022年AS和A-level的夏季大考成绩已经出分将近大半个月了,众多的A-level学子都用自己辛勤的付出交付了满意的答卷。 那么对于AS年级的学生而言,一份满意的成绩就意味着接下来申请大学有了有力的保障。对于A2年级...
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...
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-) ...
Core Practical 6: Chlorination of 2-Methylpropan-2-ol Synthesis of a haloalkane from an alcohol Measure 8 cm3 of 2-methylpropan-2-ol in a measuring cylinder Pour the 2-methylpropan-2-ol into...
Core Practical 5: Oxidation of Ethanol Oxidation of ethanol Primary alcohols can be oxidised to form aldehydes which can undergo further oxidation to form carboxylic acids When ethanol is ox...
Core Practical 4: Investigating Halogenoalkane Hydrolysis Halogenoalkanes can be hydrolysed with an aqueous solution of sodium hydroxide (NaOH) or potassium hydroxide (KOH) This reaction is ...
Core Practical 8: Determining Enthalpy Change of Reaction Measuring enthalpy changes Calorimetry is a technique used to measure changes in enthalpy of chemical reactions A calorimeter can be...
Core Practical 3: Hydrochloric Acid Concentration Performing the Titration The key piece of equipment used in the titration is the burette Burettes are usually marked to a precision of 0.10 ...
Core Practical 2: Preparing a Standard Solution Volumetric Analysis Volumetric analysis is a process that uses the volume and concentration of one chemical reactant (a volumetric solution) t...
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