IB DP Chemistry: SL复习笔记8.3.1 Acid Deposition
Acid Deposition What is acid deposition? Rain is naturally acidic because of dissolved CO2 which forms carbonic acid H2O (l) + CO2 (g) ⇌ H2CO3 (aq) Carbonic acid is a weak acid and dissociates in...
IB DP Chemistry: SL复习笔记8.2.8 Comparing Strong & Weak Acids
Comparing Strong & Weak Acids Strong and weak acids can be distinguished from each other by their: pH value (using a pH meter or universal indicator) Electrical conductivity Reactivity pH value...
IB DP Chemistry: SL复习笔记8.2.7 Strong & Weak Acids & Bases
Strong & Weak Acids & Bases Strong acids A strong acid is an acid that dissociates almost completely in aqueous solutions HCl (hydrochloric acid), HNO3 (nitric acid) and H2SO4 (sulfuric aci...
IB DP Chemistry: SL复习笔记8.2.6 pH Meters & Universal Indicator
pH Meters & Universal Indicator The most accurate way to determine the pH is by reading it off a pH meter The pH meter is connected to the pH electrode which shows the pH value of the solution ...
IB DP Chemistry: SL复习笔记8.2.5 Acid-Base Calculations
Acid-Base Calculations Using the relationships between pH, [H⁺] and [OH⁻] a variety of problems can be solved pH = - log [H+] and Kw = [H+] [OH-] Test your understanding on the following work...
IB DP Chemistry: SL复习笔记8.2.4 The Ionic Product of Water
The Ionic Product of Water pH of water An equilibrium exists in water where few water molecules dissociate into proton and hydroxide ions H2O(l) ⇌ H+(aq) + OH-(aq) The equilibrium constant for this...
IB DP Chemistry: SL复习笔记8.2.3 Interpreting pH
Interpreting pH The pH scale is a numerical scale that shows how acidic or alkaline a solution is The values on the pH scale go from 0-14 (extremely acidic substances have values of below 0) All ac...
IB DP Chemistry: SL复习笔记8.2.2 pH & [H⁺]
pH & [H⁺] The acidity of an aqueous solution depends on the number of H+ (H3O+) ions in solution The pH is defined as: where [H+] is the concentration of H+ in mol dm–3 The pH scale is a logari...
IB DP Chemistry: SL复习笔记8.2.1 Acid-base Titrations
Acid-Base Titrations The steps involved in performing a titration and titration calculation are outlined in Topic 1.2.9 Titrations Acid-base titrations follow the same steps and are used to find th...
