Abstract: An unknown solution (unknown number 40) was used to identify the presence of different cations in the solution. The separation method was used to identify ions present in the unknown solution. The unknown number 40 solution contains 2 different cations from different group, Hg^(2+) from the silver group and Bi^(3+) from the cupper group. Another experiment was performed with, unknown solution number 2, which helps to identify the presence of the Barium-Magnesium Group. A flame test was performed to identify if the cations that was present to the solution. Unknown number 2 contains the presence of NH_(3 ) from the basic solution,Na^+ from the bright yellow appearance during the flame test and Ca^(2+)from the red orange appearance during the flame test procedure. Hypothesis: If the unknown solution does not contain or perform any types reaction, does it mean it does not contain any cations from the various groups? Introduction: …show more content…
It involves a process in which it helps to identify the unknown kind of ions in the solution or mixture. Qualitative analysis scheme simply confirms the presence or absences of a certain ions in the mixtures (Tro et al. 2017 p. 721). A common analysis is the identification of aqueous ion, for this lab it was silver-copper group and barium-magnesium group. In addition, for analyzing the cations for the unknown mixtures of 2 solutions, both #40 for 5A and #2 for 5B. The reaction of the behaviour of the certain cations occurs through precipitation, acid-base, and under the flame test