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SANDOWN BAY ACADEMY




OCR Chemistry B (Salters)
Notes, Task Sheets, Questions and Answers
Michael Chard




This document consists of notes from all kinds of sources, answers to task sheets given out during
lessons (which have not been carried out on paper) and any questions from text books and any
relevant…

Page 2

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OCR Chemistry B (Salters)
Michael Chard
Table of Contents
What's in a Medicine? (WM) .................................................................................................................. 5
Acids, Bases and Bonding.................................................................................................................... 5
Acids and Bases ............................................................................................................................... 5
Bonding ........................................................................................................................................... 6
Properties........................................................................................................................................ 6
Electron Repulsion Theory and Shapes............................................................................................... 7
Organic Reactions ............................................................................................................................... 9
Homologous Series ......................................................................................................................... 9
Carboxylic Acids and Esters............................................................................................................... 10…

Page 3

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OCR Chemistry B (Salters)
Michael Chard
Using Accurate Molecular Masses ................................................................................................ 22
The Materials Revolution (MR) ............................................................................................................. 23
Electronegativity and Intermolecular Forces .................................................................................... 23
Electronegativity ........................................................................................................................... 23
Polar Molecules............................................................................................................................. 23
Intermolecular Forces ................................................................................................................... 24
Amines, Amides and Hydrolysis ........................................................................................................ 24
Amines .......................................................................................................................................... 24
Amides .......................................................................................................................................... 25
Forming Alcohols from Hydrolysis…

Page 4

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OCR Chemistry B (Salters)
Michael Chard
Amino Acids and Proteins ................................................................................................................. 37
Amino Acids .................................................................................................................................. 37
Paper Chromatography ................................................................................................................. 38
Proteins ......................................................................................................................................... 38
DNA ................................................................................................................................................... 39
RNA and Protein Synthesis................................................................................................................ 41
RNA ............................................................................................................................................... 41
Protein Synthesis........................................................................................................................... 41
Enzymes ............................................................................................................................................ 42
Inhibitors ....................................................................................................................................... 43
Environmental Impact................................................................................................................... 43
Molecular Shapes and Isomerism…

Page 5

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OCR Chemistry B (Salters)
Michael Chard
What's in a Medicine? (WM)

Specification:

A study of medicines (such as aspirin) their development, chemistry, synthesis and illustrating some
of the features of the pharmaceutical industry. The chemical ideas in this module are:

Phenols, carboxylic acids, esters, carbonyl compounds;
Acid­base reactions;
Medicine manufacture…

Page 6

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OCR Chemistry B (Salters)
Michael Chard
Bonding

Ionic Bonding and Metals

Ionic bonding is when ions are stuck together by electrostatic attraction.- from one or more
ions
Ions are formed when electrons are transferred from one atom to another
Atoms want to lose or gain electrons so that they have…

Page 7

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OCR Chemistry B (Salters)
Michael Chard
Simple Molecule (covalent)
o Low melting and boiling points
Only have to overcome weak intermolecular bonds ­ not the covalent
bonds)
o Sometimes solid ­ usually liquid or gas
Liquid and gases have the weakest intermolecular bonds
o Solid doesn't conduct electricity
No free…

Page 8

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OCR Chemistry B (Salters)
Michael Chard
Table of bond angles, shapes and names:


Number Number of Number of
Arrangement
of Bonding Lone Pairs Name of
of Electron Shape of Molecule Bond Angle Examples
Electron Pairs of of Shape
Pairs
Pairs Electrons Electrons
N/A linear 1 N/A linear 180o H2, HCl…

Page 9

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OCR Chemistry B (Salters)
Michael Chard
Organic Reactions

Homologous Series

We need to remember the organic compounds from As, the homologous series, their
general formula and how to name them
Alkanes
o General formula
CnH2n+2
o Functional group
N/A (Strictly speaking C-C and C-H bonds are- but they're so unreactive…

Page 10

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OCR Chemistry B (Salters)
Michael Chard
o Functional group
N/A (Strictly speaking C-C and C-H bonds are- but they're so unreactive that
they're not normally considered as functional groups)
o Example
Cyclohexane
Halogenoalkanes
o General formula
-
o Functional group
C-(F,Cl,Br,I)
o Example
1,3-dibromopropane
We also need to be aware…

Comments

Aria Fard

This doesn't have nearly enough accreditation! These are the most comprehensive notes I have found on the internet. Very impressed, thank you

Michael

Thanks Aria :) Good luck!

shay

THANKS MICHAEL YOU STUD X

Masood Jamil

These notes are great, thank you! Do you have notes for unit 5 (F335)

Joshua Drabble


Excellent notes, thank you

Joshua Drabble


Excellent notes, thank you

Joshua Drabble


Excellent notes, thank you

Michael

Thanks Guys - Masood, unfortunately I don't. I find the best revision for that exam is just to read revision books over and over again, with the occasional poster here and there,

Eleanor

Brilliant notes! They helped me so much, can't thank you enough.

Jia

why is this link not working anymore? please can you upload all your notes again...

Sasha

hi, your links aren't working for any of your revision notes for a2 chemistry. can you try to upload it again please?

sanzzy

the link is not working, please could you try and fix it? thanks

nirjala

hi your link isnt working , can we still find these notes somewhere ? :)

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