Reactions in Aqueous Solutions PDF

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Joanna Biswas CH 151 Lab Report

Reactions in Aqueous Solutions

Objective- The purpose of this experiment is to determine the unknown contains acquire knowledge. Introduction- Qualitative analysis involves carrying an unknown mixture of different compounds through a series of chemical reactions. Materials- seven metal ions, six reagents, ten drops of each ion.

Procedure1. First I place wells over the grid. 2. Then I put 10 drops of each ion across its corresponding row. 3. Then I put 10 drops of each reagent down its corresponding column. 4. I compare the results of known ions with each reagent to the unknown. 5. The one that matches is my unknown.

0.1 M HCl

0.1 M NaOH

xs= 6M NaOH

xs=6M NH4OH

Unknown

clear

cloudy

clear

clear

Mg

clear

Cloudy, clear

clear

clear

Ni

Clear, green

Cloudy green

Cloudy green

blue

Cr

Clear, dark blue

Cloudy green

Dark green

cloudy

Zn

Clear

Cloudy, white

clear

clear

Ag

Cloudy white

Brown cloudy

Brown cloudy

clear

The unknown contains: Zn (II) Unknown number: 12

Conclusion- By the reactions in Aqueous solutions I can determine the unknown solution and see the change in color....