CIE A Level Chemistry復習筆記5.5.8 The Common Ion Effect
Solubility Product & the Common Ion Effect A?saturated solution?is a solution that contains the?maximum?amount of dissolved salt If a second compound, which has an ion?in common?with the dissol...
CIE A Level Chemistry復習筆記5.5.7 Solubility Product Calculations
Calculating the Solubility Product Calculations involving the?solubility product?(Ksp) may include:: Calculating the solubility product of a compound from its?solubility Calculating the solubility ...
CIE A Level Chemistry復習筆記5.5.6 Solubility Product
Solubility Product Solubility?is defined as the?number of grams?or?moles?of compound needed to?saturate?100 g of?water, or it can also be defined in terms of 1 kg of water, at a given temperature F...
CIE A Level Chemistry復習筆記5.5.5 Buffer Calculations
Calculating pH of Buffer Solutions The pH of a?buffer?solution?can be calculated using: The?Ka?of the?weak acid The?equilibrium concentration?of the?weak acid?and its?conjugate base?(salt) To deter...
CIE A Level Chemistry復習筆記5.5.4 Buffers
Buffers A?buffer solution?is a solution in which the pH does not change a lot when small amounts of acids or alkalis are added A buffer solution is used to keep the pH almost constant A buffer can ...
CIE A Level Chemistry復習筆記5.5.3 pH & [H+] Calculations
Calculating [H+] & pH If the concentration of H+?of an acid or alkali is known, the?pH?can be calculated using the equation: pH = -log [H+] Similarly, the?concentration?of?H+?of a solution can ...
CIE A Level Chemistry復習筆記5.5.2 pH, Ka, pKa & Kw Calculations
Calculating pH, Ka, pKA & Kw pH The?pH?indicates the?acidity?or?basicity?of an acid or alkali The pH scale goes from 0 to 14 Acids have pH between 0-7 Pure water is?neutral?and has a pH of 7 Ba...
CIE A Level Chemistry復習筆記5.5.1 Acids & Bases
Conjugate Acids & Bases A?Br?nsted acid?is a species that can donate a proton For example, hydrogen chloride (HCl) is a Br?nsted acid as it can lose a proton to form a hydrogen (H+) and chlorid...
CIE A Level Chemistry復習筆記5.4.6 Standard Electrode Potentials: Free Energy Change
Calculating Free Energy Change Using Standard Electrode Potentials The?standard free energy change?can be calculated using the standard cell potential of an electrochemical cell ΔG??= - n x?Ecell??...
