Salt Hydrolysis An ionic salt is formed from the neutralisation reaction of an acid and base Neutralisation? The ionic salt, MA, formed will dissociate in water Hydrolysis?is where water is used to...
Buffers A?buffer solution?is a solution which resists changes in pH when small amounts of acid or base are added A buffer solution is used to keep the pH almost constant A buffer can consist of?wea...
pH 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 base) is added The features of a pH curve ...
Lewis Theory of Acids & Bases A more general definition of acids and bases was given by G.N. Lewis who defined them as: A Lewis?acid?is an?electron pair acceptor A Lewis?base?is an?electron pai...
A-Level經(jīng)濟(jì)學(xué)Economics是A-Level最受學(xué)生歡迎的科目之一，但是很多學(xué)生認(rèn)為A-Level經(jīng)濟(jì)學(xué)的學(xué)習(xí)難度較大、高分率低，“不選不行，選了痛苦”成為了很多選擇A-Level經(jīng)濟(jì)學(xué)學(xué)生的寫照。 今天帶給大家Alevel經(jīng)濟(jì)筆記...
Gibbs Free Energy & the Equilibrium Constant Gibbs Free Energy & the Equilibrium Constant The equilibrium constant,?Kc, gives no information about the individual rates of reaction It is ind...
作為管理、金融、會計(jì)學(xué)專業(yè)的基礎(chǔ)，A-level經(jīng)濟(jì)一直是非常受歡迎的科目。眾所周知A-level經(jīng)濟(jì)難度真的不小，今天我們就一起來看看國際收支的結(jié)構(gòu)這個(gè)知識點(diǎn)。 國際收支平衡——國際收支的結(jié)構(gòu) 對于許多Alevel學(xué)生...
Explaining Le Chatelier’s Principle Le Chatelier's principle Le Chatelier's principle says that if a change is made to a system at?dynamic equilibrium, the position of the equilibrium moves to mini...
Activation Energy from Rate Constants at Different Temperatures Arrhenius Plots Arrhenius plots for two reactions with different activation energies can be drawn on the same graph Arrhenius plots f...
