H2 Chem Notes 9729 - Google Docs
Uploaded by Abc123 · 29 May 2024
Preview
I. Mole Concept and Stoichiometry Pg 23 II. Atomic Structure Pg 46 III. Chem Bonding I Pg 711 IV. The Gaseous State Pg 12 V. Energetics Pg 1314 VI. Reaction Kinetics Pg 1519 VII. Dynamic Eqm Pg 20 VIII. Chem Bonding II Pg 21 IX. Intro to Organic Chem Pg 2225 X. Alkanes Pg 2627 XI. Alkenes Pg 2831 XII. Arenes Pg 3235 XIII. Periodicity I Pg 3638 XIV. AcidBase Eqm Pg 3941 Solubility Eqm Pg 42 XV. Halogen Derivatives Pg 4347 XVI. Hydroxy Cmpds Pg 4852 XVII. Carbonyl Cmpds Pg 5356 XVIII. Carboxylic & Derivatives Pg 5761 XIX. Nitrogen Derivatives Pg 6264 XX. Electrochemistry Pg 6568 XXI. Periodicity II Pg 69 XXII. Transition Metals Pg 7073 Qualitative Analysis Notes Pg 7477 1
I. Mole concept and Stoichiometry Relative atomic mass = mass of 1 atom 112 of the mass of 1 Carbon−12 atom/ Proton = 1u, Neutron = 1u, Electron = u1 1840 Mole = amt of substance which contains as many elementary entities as in 12 grams of carbon12 → 6.02 x particles1023 Empirical formula: simplest whole number ratio of the atoms in one formula unit of the compound. Molecular formula: actual number of atoms present in one formula unit of the compound. Percentage yield = x 100%actual yield theoretical yield Avogadro’s hypothesis: Equal volume of gases under the same conditions of temp & pressure contain same number of molecules. (except when molecules dimerise [see chapter III. Chem Bonding]) ( ^molar vol. can be found in data booklet!) Complete combustion of any hydrocarbon CxHy (g) + (x + ) (g) → xC (g) + O (l)4 y O2 O2 2 yH2 Strong acid/base = one that undergoes complete dissociation/ ionisation in aq. Soln Weak acid/ base = one that undergoes partial dissociation/ ionisation in aq. Soln → pH = lg[ ]H+ Type pH △ Indicator Strong acid Strong base 410 (screened) Methyl Orange, Methyl Orange, Phenolphthalein, Thymol Blue, Thymolphthalein Strong acid Weak base 3.56.5 (screened) Methyl Orange, Methyl Orange Weak acid Strong base 7.5 10.5 Phenolphthalein, Thymol Blue, Thymolphthalein Weak acid Weak base No marked △ Redox = Simultaneous reduction & oxidation → Loss/ gain of O2 → Loss/ gain of H 2
→ Loss/ gain of e− → in oxidation no. ↑/↓ OIL Oxidation = Loss of e− RIG Reduction = Gain in e− Total gained by reducing agentNe− = Total gained by oxidising agentNe− Total in ox. no. of one species ↑ = Total in ox. no.
Content continues in the PDF.
Related notes
- 2026 H2 Timed Practice Paper 2 Solutions + Examiner Comments (updated 17 July)MYEs/CAs/Other Tests · 2026
- 2026 H2 Timed Practice Paper 2 QP (to upload)MYEs/CAs/Other Tests · 2026
- 2026 H2 Timed Practice Paper 1 MCQ (Question Paper)MYEs/CAs/Other Tests · 2026
- 2026 H2 Timed Practice Paper 1 MCQ Combined + answer (finalised)MYEs/CAs/Other Tests · 2026
- Mock chem paper 2 suggested solutions (corrected)User Mock Papers
- NJC Organic Chem 2026Notes/Practices · 2026

