Answer Happy

Use the information provided to graph a detailed data table on
the second page. Will upvote if correct, many thanks.
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Answer : The qualitative analysis means that you have to
determine what compound is provided to you. In here, it is
mentioned unknown salt. So in most of all the salts there are
basically 2 ions which made up the salt. One is cation (positively
charged) and another one is anion (negatively charged).
When you dissolve any salt in water the salts dissociate in
respective free cation and anion eg. NaCl (sodium chloride)
dissociates in Na+ and Cl- ion.
Note that on most of the salts the net charge is zero as the
positive and negative charge cancel out each other.
These ions in water behave differently and resulting in various
chamical reaction.
Qualitative analysis of a salt is a chemical technique used to
identify cations and anions present in a salt by finding out its
physical and chemical properties and hence determine the identity
of the salt.
It determines only the presence or absence of a particular
cation or anion in a given salt but not the amount in which they
are present.
There may be several tests given in your lab handbook to check
and confirm the presence or absence of a particular cation or
anion.
In qualitative analysis, certain tests shows different
observations for different ions which and thus we can determine
which ions are present in our sample.
Once, we confirmed both, the cation and anion, the unknown salt
is just the addition of the two. As if cation
Na+ is detected and anion Cl- is
detected. The unknown salt is combination of the two i.e. NaCl
(sodium chloride).
Thus by qualitative analysis you can determine the unknown salt
provide to you.
AY 202 LC CHE 167 Exp. #11 Qualitative Analysis of an Unknown Salt a Torhat 1. Introduction In today's experiment you will build on what you learned in the last 2 weeks and use your Qual Schemes for anions and cations to identify the ions in an unknown salt. Once again you will use Chemical tests to identify ions, but you must use the data you collected over the course of the past 2 weeks to help you develop your own procedure for today In today's experiment you will be graded solely based on your ability to correctly identify the ions in unknown solution. Today's lab is a really fun challenge. Have fun! 15 your 22 2. Procedure. 1. Dissolve your unknown salt in a minimum amount of water (up to 25 ml) in a 50 ml beaker. Use only as much water as is required to completely dissolve all of your solid. We suggest you begin with 25 mL of deionized water. 2. Use the Information from the last 2 weeks to develop a procedure that details the order in which you will perform your chemical tests. 29 3. Complete the identification of your unknown. Don't forget to write down all your observations and process your data into a coherent data table at the end.

PART II. Data Table Unknown Number: 101 Identity of anions and cations in unknown solution: 2t 2-