Part C. The Identification of an Unknown Cation. What is the identity of your unknown cation?
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The cation in your unknown metal sulfate is one of the following: Li+1 Na+1 K+1 Rb+1 NH4+1 Use the mass percentages you obtained in #2 and #3 to identify which one of these cations was present in your unknown metal sulfate. Show all of your calculations (organized into clear and logical steps) in the space below, and be sure to explain your conclusions. Unknown Sulfate ID Code: Identity of Cation:
Sri K.
Part III: Analysis of Unknown Ions Give observations of any positive or negative tests you perform with your unknowns. Cation tested | Test | Test results (+/-) | Observations Unk | NH4+ | Unk | Ca2+ | Unk | Zn2+ | Unk | Cu2+ | Anion tested | Test | Test results (+/-) | Observations Unk | SO42- | Unk | CO32- | Unk | PO43- | Unk | I- | State the identity of your unknown cation and unknown anion and explain why. Conclusion
Q1: which cations are present in your unknown solution? Q2: which cations are not present in your unknown solution Q3: what group II cations could be in the unknown solution but would fail to be detected in this procedure?
Madhur L.
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