Assume that you have an unknown consisting of an aqueous solution of a salt that contains one of the ions listed above. Which ions must be absent on the basis of each of the following observations of the unknown?
a. CO3
b. Cr2O7
c. NH4
d. Ba
e. Al
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Home » Chemistry » Assume that you have an unknown consisting of an aqueous solution of a salt that contains one of the ions listed above. Which ions must be absent on the basis of each of the following observations of the unknown? a. CO3 b. Cr2O7 c. NH4 d. Ba e. Al