Various Forms of Single Displacement Reactions • Discuss your observations for both reactions. • Blanks 1-3 go with copper plus silver nitrate • Molecular – blank 1 – 2 AgNO3 (aq) + Cu (s) Cu(NO3)2 (aq) + 2 Ag (s) • Total ionic – blank 2 – 2 Ag+ + 2 NO3- + Cu Cu2+ + 2 NO3- + 2 Ag
D – Double Displacement Reactions AX (aq) + BY (aq) AY (aq) + BX (aq) • Follows similar format to C, ie, molecular, total ionic and net ionic equations are reported. • First step, decide which mixtures reacted, ie formed a precipitate. NaOH NaCl NaNO3 Cu(NO3)2 ppt nr nr AgNO3 ppt ppt nr Fe(NO3)3 ppt nr nr
D – Double Displacement Reactions AX (aq) + BY (aq) AY (aq) + BX (aq) • The 4 reactions that formed ppt go on first 4 lines of Table 6.5 – be sure to balance • Blank 1-3 are associated with the first reaction • Blank 4-6 are associated with the second rxn • Etc • Any insoluble nitrates formed? How do you know?
General Report Expectations • Introduction will include what you did, including whether it was quantitative, qualitative or both. • Discussion will include what you saw and some interpretation. Specifically this should include all surprise results, ie, the patient’s temperature is 103! • Conclusions should be explicit and relate to the experiment’s objectives. If there is an unknown what is it? Percent yield,
- Spring '12
- Chemical reaction, Nitrate, balance equation, ionic reaction