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IGCSE chemistry (0620) notes

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These are IGCSE notes for chemistry (0620). Includes: -separation techniques -acid base reactions -group 1 elements -group 7 elements -crude oil separation -alkane reactions -alkene reactions -alcohol reactions -polymers -water treatment and air pollutants -flue gas desulfurization -how to calculate oxidation states -anion and cation tests -summarization for all reactions

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Uploaded on
September 22, 2024
Number of pages
18
Written in
2022/2023
Type
Class notes
Professor(s)
Ms i
Contains
Igcse chemistry (0620)

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chromatography · rin
Chemistry ·
crystallization
-




-> pencil is used to
->
insolvable solid
->
undissolved solid from

draw base line Filter
paper is
placed solution
->
substance to be in filter funnel above solution is heated
-> ->
tested is puton beaker allowing solvent
to

baseline
->
mixture of insolvable evaporate and leave

is lowered into solid E liquid is
poured saturated solution behind
-> paper
container with solvent into fitter funnel To test ifsolution is
->
rod
Ibaseline should be solid particles will saturated, dip glass saturate
a
a

above solvent) be too large to If crystals form, solution is n




solvent travels will saturated solution allowed
-> up pass so they ->
is


the paper remain (residue) to cool.

-> substances with higher ->
as solubility, crystals
solubility travel further crystals are filtered
->
ifsubstances washed distilled M.G
->
are the
-> using
same, they produce -> allowed dry
to

same chromatogram
distance moved by
R -
compound
distance moved by
solvent

, · Distillation · Titration ·
Precipitation
find out Reaction
-> liquid from solvable
-> to conc

solid Fill a burette with acid cations anions
->
+




->
->
Solution is heated to
->
use pipette to add alkali in an aqueous solution


produce vapour to conical flash form insolvable solid

-> vapour passes through ->
Add indicator to alkali I precipitates
condenser, turning liquid Slowly add acid two solutions of
-> &

once all solution is
stop adding acid once solvable substances
-> ->
evaporated, solid is indicator colour mixed in a
changes are


leftbehind ->
Record titre beaker

7 the precipitate is
-
EdAlkali




I
· Fractional Distillation filtered out

mixture of liquids
Blue litmus Red Blue filtered precipitate is
-> -

Solution is heated to Bed litmus Red Blue washed with
->
thatwill
temp bail the
methyl orange Pink yellow pure water

substance with lowest
b.p Phenolphthalien colourless pink
->
solvable salt

-> vapour passes through thymophthalien colourless Blue scraped
is off

condenser, turning liquid Filter paper
this is done H20 (present) dryed
->
again
colled ·
to
liquids with
Anhydrous Copper ("):white - blue
sulphate
higher bip
cobalt (I) chloride:blue-> pinn

I
.




L
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