Question

OntarioTech University CHEM 1800, 19. Exp. 2 - 10.14 Table 1: Single Displacement Reactions Metal Cu Mg Solution 6 mol L'HCI Moraction, Chez Prápitation 0.3 mol L ' Cuso Bubbaly, Fog Releas of Gos, dear, Bubbly, helens of energ (at) Clear, Color change (blue) Precipitation, Not clear, No other reaction Deark colour, Bubbly, little capgy releas (ads Bubbly, Decipitation 0.3 mol L' ZnSo. No Reaction, Clear Precipitation No Reaction, care Preup, 0.3 mol L' MgSO No Danction, dear, | Precipitation colour formation of solid evolation of jes i n conscmption of energy

Hi, based on the two tables shown above please answer the following question:

1. You are given a solution that contains one of the ions Ag+ , Pb+2 or Ba+2 . Based on your

observations in this experiment, develop a procedure to determine which ion is present.

More than one reaction may be required to discover the ion’s identity. Explain how your

procedure will determine the identity of the ion.

Answer 1

A We will add OlM NA250 4 to the som in there is no epation et all we can be sure of contains Agt. To further confident we ada olm Knez KI which produces a yellow precipitate Best - Simply add oilad Agnos it som gives white ppt, it contains BAZT one else Pb2t on Apt. Now, to confium Bazt we wil add OIMURI, it will give no reaction at all. Confirms Bazt. il piht on Agt was present, it wil o give some change Adding O. IM Nas som produces foggy Osoln which indicate it might contain P624 ore Bat. Jo confitem further, we add OLM KJ- Yellow ppt. confiaems Pb2+ presence