Essay about Chemistry Lab

The purpose of this lab was to see which solutions are soluble and which are not. We were able to see this by mixing certain solutions together and observing changes that occurred. The procedure for this experiment included a few different steps. The first steps were to add the nitrate solutions into the lettered parts of the 96-well plate. Once you were done with that, you were supposed to add the sodium solutions to the numbered parts of the 96-well plate, so that the solutions were added together. You were supposed to observe the different reactions occurring. Once you observed each reaction take place, you needed to fill out your data table. Data Table: Solubility Rules Table | Negative Ion (Anions) | Positive Ions (Cations) | …show more content…

C. Which anions generally form precipitates? What are exceptions? Silver salts, Phosphates, Sulfides, Carbonates, Hydroxides. Exceptions include alkali metals. D. Which anions generally do not form precipitates? What are the exceptions? Nitrates, Alkali metals, Ammonium salts, Halides, and Acetates. The exceptions include those mentioned above that would form precipitates. E. Which cations generally do not form precipitates? Na+ generally does not form precipitates. F. Select 10 reactions that produce a precipitate, color change, or gas and write balanced chemical equation and a net ionic equation for each. Remember, a reaction may be indicated by the formation of a precipitate, color change, or the formation of gas. Record the well numbers of the precipitates you chose for your equations.
(Co(No3)2+6H2O)+(Na3PO4+12H2O)Well A1
(Cu(NO3)2+3H2O )+(Na3PO4+12H2O)Well B1
(Fe(NO3)3+9H2)+(Na3PO4+12H2O)Well C1
(Ba(NO3)2) )+(Na3PO4+12H2O)Well D1
(Ni(NO3)2+6H2O)+(Na3PO4+12H2O)Well E1
(Co(No3)2+6H2O)+(NaHCO3)Well A5
(Cu(NO3)2+3H2O)+(NaHCO3)Well B5
(Fe(NO3)3+9H2)+(NaHCO3)Well C5
(Ba(NO3)2) )+(NaHCO3)Well D5
(Ni(NO3)2+6H2O)+(NaHCO3)Well E5 To wrap things up, I found this lab to be easy but confusing at the same time. I am not sure my reactions were all correct because I thought there were supposed to be some that were insoluble, however, I observed reactions occur every time. I would suggest maybe providing better rules for the solubility