A solution containing a mixture of metal cations was treated with dilute HCI and no precipitate formed. Next, H₂S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and H₂S was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium. carbonate solution, which resulted in no precipitation. Classify the metal ions based on whether they were definitely present, definitely absent, or whether it is possible they were present in the original mixture. Definitely present Definitely absent Agt Ba2+ Mn²+ Mg²+ Pb²+ Hg W Possibly present Cu²+ Fe²+ Cr³+ Sn+ K* Hg2+ Sb³+

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.