Edexcel A Level Chemistry:復(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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...
Edexcel A Level Chemistry:復(fù)習(xí)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(fù)習(xí)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-) ...
Edexcel A Level Chemistry:復(fù)習(xí)筆記4.2.3 Chlorination of 2-Methylpropan-2-ol
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...
Edexcel A Level Chemistry:復(fù)習(xí)筆記4.2.2 Ethanol Oxidation
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...
Edexcel A Level Chemistry:復(fù)習(xí)筆記4.2.1 Hydrolysis of Halogenoalkanes
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 ...
