Create a flow chat on Group 1Cation: Ag +, Pb2+, Hg22+ Ions 1. HCl is added to a unknown solution which may contain only Group I cations. A white precipitate Hot water is added to this white precipitate. It dissolves completely. A solution of K2CrO4 is added and a yellow precipitate forms. DEFINITELY PRESENT___________________DEFINITELY ABSENT___________________ POSSIBLY PRESENT ___________________ 2. HCl is added to a unknown solution which may contain only Group I cations. No white precipitate forms. DEFINITELY PRESENT___________________DEFINITELY ABSENT___________________ POSSIBLY PRESENT ___________________ 3. HCl is added to a unknown solution which may contain only Group I cations. A precipitate forms. Hot water is added to the precipitate. The remaining precipitate is washed, NH3 is added and a gray–black precipitate forms. The solution is treated with HNO3, causing a white precipitate to form. DEFINITELY PRESENT___________________DEFINITELY ABSENT___________________ POSSIBLY PRESENT ___________________
Create a flow chat on Group 1Cation: Ag +, Pb2+, Hg22+ Ions
1. HCl is added to a unknown solution which may contain only Group I cations. A white precipitate Hot water is added to this white precipitate. It dissolves completely. A solution of K2CrO4 is added and a yellow precipitate forms.
DEFINITELY PRESENT___________________DEFINITELY ABSENT___________________
POSSIBLY PRESENT ___________________
2. HCl is added to a unknown solution which may contain only Group I cations. No white precipitate forms.
DEFINITELY PRESENT___________________DEFINITELY ABSENT___________________
POSSIBLY PRESENT ___________________
3. HCl is added to a unknown solution which may contain only Group I cations. A precipitate forms. Hot water is added to the precipitate. The remaining precipitate is washed, NH3 is added and a gray–black precipitate forms. The solution is treated with HNO3, causing a white precipitate to form.
DEFINITELY PRESENT___________________DEFINITELY ABSENT___________________
POSSIBLY PRESENT ___________________
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