welcome to
diagrams week
the emphasis for all groups this week will be diagrams
if a picture is worth a thousand words, draw it properly!
13
obj
to
- revise definitions of cell components
- be able to draw an electrolytic cell
- describe reactions occuring at cathode and anode
- estimate the avogadro constant by an electrical method
- make predictions of electrode producst at each electrode
- be able to calculate the charge passed in electrolysis
- calculate the mass of product formed
- define the terms standard electrode potential and standard cell potential
pp273-286
act
- revision q1 p274
- drawings of cell p275
- redox p276
- Q=It p276
- avogadro p277
- finding the charge p277
- potentials p278
- she p279
- expt for charge p277
- cell potential for Cu and Zn
- redox titration
- inert elecrode setup from the titration
q5 q6 p 277
12
obj
to
- learn Hess' Law
- apply Hess to real reaction sequences
- learn how to calculate energies using Hess
- revise redox reactions
pp97-109
act
- Hess p97 et seq
- q1 p97
- q2 p108
- enthalpy of combustion
- enthalpy of displacement tie in with redox
inerpretation and graphs from prac
11
topic change to metals
obj
- the idea of ease of extraction of a metal from its ore
- position in reactivity series
- displacement reactions
- the idea of steel as an alloy of Fe and C
- learn the gcse way to write equations
p149-156
act
carried from last week oxidation numbers
- oxidation number in answer to where does the VII come from in manganate VII
- oxidation number of sulfur in sulfite and sulfate
- test for carbonate; copy the method
- this weeks' formulae: compounds of copper II (Tues) and iron II
- take the chemical equation test
- revise iron, the blast and steel making furnaces
- video: conversion of iron to steel p158 and p166
- Zinc extraction, p 160
- structure of alloys, p 167
- rust and rust prevention methods, plastic, plating, galvanising, sacrificial, 161-164
- video on rusting and prevention
- video on rusting and galvanising
- revision of test for hydrogen
- theatre hydrogen demo
- iron + H2SO4 to produce hydrogen to test
- revision of test for crystallisation
- iron + H2SO4 to extract the salt
- thermit reaction (as video demo) thermit video demo
- and as railway track welding
- test for carbonate if time chloride bromide iodide
- crystallisation and testing of FeSO4 test for hydrogen
- oxidation (rusting) of Fe by conversion to FeO in flame and reaction as a basic oxide
- set up rusting of nails tubes p162
- testing for Fe II and Fe III ions
diagram of ship with equations, p64
10
obj
- Learn the terms atom, molecule, compound
- learn why diffusion takes place
pp 6 - 14
act
- note on copying results!
- the m. pt. explanation and result
- Draw the diffusion diagrams, p6 & 7
- copy the table for metals and non metals , p11
- Definition of: atom, element, molecule p10-11
- Compounds, diagram p13
- video on Brownian Motion
- condensation of steam against an cooled surface
- sublimation of ammonium chloride
- KMnO4 diffusion in hot and cold water
- sublimation CO2 NH4Cl
- photos of the diffusion
- relative diffusion of ammonia and HCl
- diffusion of ions: Pb(NO3)2 and KI
- time permitting Brownian Motion of milk and talc using a microscope
- read the syllabus content for topic 1
- copy and learn the check-list, p8
- explain with diagrams: filter and evaporate
8
obj
to
to
- consolidate the idea of diffusion in terms of particles
- show the idea of particle velocity-temperature dependence
text
pp72-73
pp72-73
act
using diffusion p72
using diffusion p72
vocab
- stir
- diffuse
- filter
- dissolve
- variable
- syrup
- making tea from a teabag intro to filtering too
- activity p78 dye in water at different temperatures
hw
graph from p73
graph from p73
