The document summarizes salt analysis experiments and observations to determine the constituents of an unknown salt sample. Preliminary tests showed the salt was soluble in water and produced a yellow flame. Systematic analysis of anions found the presence of nitrate (NO3-) through tests producing brown fumes. Analysis of cations found the presence of lead (Pb2+) through a yellow precipitate formed with potassium chromate. The salt was determined to be lead nitrate (Pb(NO3)2).

1. (16/1/21 SALT ANALYSIS -
SL
LNOL EXPERIMENT OBSERVATION INFERENCE
PRILIMINARY TEST
Coloun
he Salt nolo d bsena of Ni 2,
Mnet
etc.
nolo
d Cwloun lem
A Atee he
alt he
healed
un dry teat tube
No Smell
Absene p NH
3oul Soluble n cold watei
ASolutlon can be
renand yn sld wak
Flame teat A Tle o the
altAsution made urle a
haste
shoun t to he
Colounles Hame tbenu Ba2 S2 aT
Loncentrated HCI and
lame
SYSTEMATIC ANALYSIS OF ANION
Teat CO2
A Ltle
dilsiled
ethesalt No briskehervesene bsena E Co2
addad

2. 2Test fov CHsCoO Ca cone
A Jitle o the salt No STmdl Absene PCHC00
ubbed wih Ha2 S04
Teat f07Ahlovine (a)
To a tile salt nl of
Con.centyated H2SO4 added ind
hedted
3 No thiik whl Psewne C
umes
(No3)
t he salt,
Test fo bate
4
to
COmenbrated thsb4 is added
heat Ke Cmuctue and add a
papeball
Plunty o eddsh
brown fumes
Paesenu Nog
MNO3 + H2SO4 MHSO+++tNO
4HNO3 +C 4NO21+2H20 +cd
rown as
CONFIRfMATOR Yy TEST :
|Bron tinq test
o a OTmiatwe
and hshluy psenakd Fesoy is vmed at tha
cnuntraud so 1 added alnq
ha sidesAtut ube
o Aalt luhen A bieuwn
wny
Phenene of Nos
kuntuon he
Lqud
olm

3. EXPERIMENT OBSERVATION INFERENCE
MNO3 F Has0 MHSO+ HNO
Fe
2
+ 2HNO3t GH GFe 2NO2 t4H20
FenH0 Soal
FesO4 +NO+ 5rl20
SySTE MATIC ANDALYSIS DF CATION
Ahalysis 1eup 3eno (NH
To a lite
o Na2c03 Soln is added
salt a Litle Awhde
pmeyptale Abxene of NH4
o
fust (P2t)
thesalt
2aysus
Whule
pacupitalu Paewnu oP 27
a
Aolutien duluted HCI
added
Ph
2+H Pba aH
Cnkomaloy Jest o Pb 2t
To he Aaltoluhon add
ckuataSetuh.m
Paesenee
thad
Yellowpreapkale

4. Ph 2 +Ka CyO4 PECO4 + 2k
ResULs
Che PbiN 03
2
Salt Pb*|and NOs thenekovehe sall is PbîN 03
P2