Chemistry Reference Sheet - Cations Flow Chart

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Group I Cations – Flow Chart
+2
+2
+
Pb
, Hg
, Ag
2
6M HCl
PbCl
(white ppt.)
2
Solution contains Cations
Hg
Cl
(white ppt.)
2
2
Groups II-IV
AgCl (white ppt.)
Hot H
O
2
+2
Pb
Hg
Cl
,
AgCl
2
2
K
CrO
H
SO
6M NH
OH
2
4
2
4
4
PbCrO
(yellow ppt.)
PbSO
(white ppt.)
4
4
Hg + HgNH
Cl
2
+1
Ag(NH
)
(black ppt.)
3
2
AgCl
(white ppt.)

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