Chem Lab 1 Study Sheet Flashcards
silver is ____ in aqueos solution
colorless
lead is ____ in aqueous solution
colorless
mercury is ____ in aqueous solution
colorless
Ag+ (aq) + Cl- (aq) —> ?
AgCl (white)
Pb^2(aq) + 2Cl-(aq) –> ?
PbCl2
(white)
Hg2
^2+(aq) + 2Cl-(aq) —> ?
Hg2
Cl2
(white)
immediate formation of a yellow percipitate of lead chromate confirms the presense of ____ original solution
Pb^2+
cation is an ____ complex ion Ag+
ammonia
silver chloride dissolves in aqueous ammonia forming a ___
soluble, colorless compound
when reaction produces black color ____ is present
mercury (Hg)
when HgCl2
comes in contact with aqueous ammonia undergoes an oxidation reduction reaction forming percipitates of ____
finely divided elemental mercury, Hg (black) and mercury (II) amide chloride, HgNH2
Cl (white)
appearance of a dark gray to black percipitate confirms presence of ____
Hg2
^2+ = mercury (II)
if silver ion present, centrate from procedure I-C contains _____
soluble ammonia complex of silver chloride
destroying this complex with nitric acid will bring the formation of ____ percipitate confirming presence of Ag+
silver chloride
appearance of a white percipitate confirms the presence of ____
Ag+