week 2 09 sep

week 2 already
keep thinking safe

don't be the first to burn your fingers






Y13
obj
to

• learn the factors which affect lattice energy (le)
• how size of ion affects le
• the relationship le and enthalpy of solution
• text
• pp 261-265

act

• from memory and with data book bhs for LiF and MgCl2 (p261)
• factors affecting le p262
• prediction of lattice energy related to ionic radius
• graph p262
• polarisation of ions, p263
• decomposition of carbonates, p264
• stability of nitrates p264
• enthalpy changes in solution p265
• q2 p265
• review of electron affinity for Gp VII

prac

• cambridge practical 2: gas volumes
• preparation of MgO realted to lattice energy via this method
• precipitation (or otherwise) of Mg and Ba sulphates
• design and prepare suitable solutions for the preparation of hydrated magnesium sulfate to assess its Mr and water of crystallisation.
• 
  

hw
remember the format of the paper 5? choose a lab report for any one at this sort of level

Y12
obj
to learn

• some experimental methods for determining Mr from ideal gas equation
• use examples of the ideal gas equation
• the terms liquid state vapor vapour pressure
• the terms solid state as ionic and metallic lattices
• that alloys are mixtures of metals
• how to distinguish simple and giant molecular structures
• some ideas of recycling
• the need for correctly balanced equations

text
pp 74-85

act

• graphs p74
• Mr via vaporisation p76
• liquids and vapours p77
• ionic lattice p78
• metallic lattice p79
• simple molecules p80
• giant molecular structures p81

prac

• preparation of MgO and Mg(NO3)2 
• the decomposition of Mg(NO3)2  and ID of gases
• conversion of MgO to sulfate nitrate chloride

hw

• Equations with ions from prac.
• Draw the structure of MgO

11
obj
the idea that:

• analysis is an important branch of chemistry
• the appearance of a substance can give evidence for identity
• flame colours can be used to identify metal ions
• sodium hydroxide can be used to further identify metal ions

text
pp 261-263

vocab

• acidic
• basic
• amphoteric
• neutral

act

• revise the analysis stuff from acids, bases and salts
• note and vocab check on  acid base neutralise
• video on acid rain and reduction of the effects of acid rain
• note about testing for CrIII
• the difference between qualitative and quantitative analysis (p261)
• copy and learn the appearance table, p261 (note on care with smell!)
• copy the flame test table, p 261
• copy the ions which can be tested with sodium hydroxide
• stick in analysis sheets
• revise formulae from ions
• revise gas preparation ad collection
• revision of chemical formulae involving hydroxides OH^-
• revise how to answer gcse questions jun 2016 p4 q 1 qnd 2

prac

• flame tests for the positive ions as groups Li, Na, K Cu
• test for Cr III
• test for sulfite
• test for SO₂
• revision of the term amphoteric then prep of ZnSO₄ and testing using aq NaOH and NH₃

hw
none for first week

10
obj

• learn the lab rules
• recognise hazard warnings
• state the distinguishing properties of solids, liquids and gases p2
• describe the structure of solids, liquids and gases in terms of particle separation, arrangement and types of motion. diagrams, p3
• describe changes of state in terms of melting, boiling, evaporation, freezing, condensation and sublimation diagram and graph, p5
• to become familiar with the syllabus and videos here

text
pp. 1-8

act

• copy the lab rules
• revise and draw the more common hazard-symbols
• chemistry is everywhere, but where?
• diagrams s, l, g: here
• copy and learn definitions s, l, g p2
• vocab: solid, liquid, gas, particle, molecule, atom, structure, state of matter, change of state, melt, boil, condense,sublime, freeze

prac

• m.pt. stearic acid antipolillas if time
• b.pt. ethanol
• b.pt. methanol

hw

none for first week

diagram of your experiment find your one

8
both group sync week

obj

as week 1 and have a go at the following instructions practical