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Homework answers / question archive / Liberty University Online AcademyBIOL 103 A20 In Lab 3 Qualitative Analysis: Cations, you added K2CrO4 to a solution in step 3 of the reaction
Liberty University Online AcademyBIOL 103 A20
In Lab 3 Qualitative Analysis: Cations, you added K2CrO4 to a solution in step 3 of the reaction. What is the purpose of adding K2CrO4? Check all that apply.
A)Separate Pb2+ from the rest of the ions
B)Confirm the presence of Pb2+ in the solution
C)Separate Ag+ from the rest of the ions
D)Confirm the presence of Ag+ in the solution
E)Separate Hg22+ from the rest of the ions
F)Confirm the presence of Hg22+ in the solution
Answer:
The purpose of adding K2Cr2O7 is confirmation test of the Pb2+ in the solution.
The correct answer is (B) Confirm the presence of Pb2+ in the solution.
PFA