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Chemistry Syllabus
Chemical Analysis
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jaden lim
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Cards (17)
Test for chloride?
Nitric Acid
+
silver nitrate
Observations for positive test for chloride
White precipitate
Test for bromide
Nitric acid
+
silver nitrate
Observations for positive test of bromide
Cream
ppt
Iodide test, observations for postive test
Nitric acid
+
silver nitrate
Yellow
ppt
Nitrate test, observations for postive test
Add
sodium hydroxide
Add
aluminum foil
Warm
Test
gas
produced with
damp pH indicator paper
Ammonia
gas produced/ indicator goes
blue
Carbonate test, observations for + test
Any
dilute acid
then bubble gas thru
limewater
Limewater goes
cloudy
Hydrogen carbonate, observations for + test
After
positive carbonate test
Add
magnesium
chloride
Hydrogen carbonate:
colorless solution
Carbonate:
white ppt
Sulphate test, observations for + test
HCI/Nitric acid
+
barium chloride/nitrate
White
ppt
Copper test, observations for + test
Add
NaOH
then
excess
Add
ammonia
then
excess
NaOH -
light blue
ppt
NaOH excess - stays
insoluble
NH3 -
light
blue
NH3 excess
-dark
blue
solution
Iron (II) test, observations for + test
Add
NaOH then
excess
Add
Ammonia then
excess
NaOH
- green
ppt
NaOH excess
- insoluble
NH3
- Green
ppt
NH3 excess
- green
ppt
Iron (III) test, + test
Add
NaOH
then excess Add
Ammonia
then excess
NaOH -
brown
ppt
NaOH excess -
insoluble
NH3 -
brown
ppt
NH3 excess -
insoluble
Zinc test
Add
NaOH
then
excess
Add
Ammonia
then
excess
NaOH -
white
ppt
NaOH excess -
colorless
NH3 -
white
ppt
NH3 excess -
colorless
Calcium test
Add
NaOH
then
excess
Add
Ammonia
then
excess
NaOH -
white
ppt
NaOH excess -
insoluble
NH3 -
colorless
ppt
NH3 excess -
colorless
ppt
Ammonium test, + test
NaOH
+
heat
Heat gently
Test gas
produced with
damp pH indicator
Ammonia gas
produced (
blue
)
Magnesium test, + test
NaOH
NH3
NaOH -
white
ppt
NaOH
excess
- stays
insoluble
NH3 -
white
NH3 excess -
insoluble
aluminum test, + test
NaOH
NH3
NaOH -
white
ppt
NaOH excess -
colorless
NH3 -
white
NH3 excess -
insoluble