Match the following terms about analytical precipitations to their definitions:
A.) Coprecipitation
B.) Adsorption
C.) Absorption
D.) Gathering
E.) Masking
F.) Digestion
G.) Peptization
1.) Inclusion or occlusion of impurities within a crystal.
2.) Binding of impurities to the surface of a crystal.
3.) Breaking up of precipitation upon washing with water in the absence of an electrolyte
4.) Letting a precipitate stand with the mother liquor to promote slow recrystallization
5.) Isolation of a trace component for analysis by coprecipitation with a major component in the solution
6.) Treatment of impurities with an agent to prevent coprecipitation with the desired analyze.
7.) Adsorption, occlusion or inclusions of impurities along with the desired analyte in a precipitation
Hint Given: The first five terms deal with coprecipitation of impurities, while the last two refer to treatment of a precipitate after it is formed.
A-7
B-2
C-1
D-5
E-6
F-4
G-3
Aren't these defined in your text/notes?
To match the terms about analytical precipitations to their definitions, we need to understand the meanings of the terms and the provided descriptions.
Let's go through each term and description and find the best match:
A.) Coprecipitation: Isolation of a trace component for analysis by coprecipitation with a major component in the solution.
Looking at the hint, we can see that the first five terms deal with coprecipitation of impurities. So, since A is related to coprecipitation, it is the best match for 5.) Isolation of a trace component for analysis by coprecipitation with a major component in the solution.
B.) Adsorption: Binding of impurities to the surface of a crystal.
According to the descriptions, B matches with 2.) Binding of impurities to the surface of a crystal.
C.) Absorption: No description provided.
Unfortunately, no description is given for absorption. So, we can't determine its match with certainty.
D.) Gathering: Letting a precipitate stand with the mother liquor to promote slow recrystallization.
Considering the descriptions, D matches with 4.) Letting a precipitate stand with the mother liquor to promote slow recrystallization.
E.) Masking: Treatment of impurities with an agent to prevent coprecipitation with the desired analyte.
Looking at the descriptions and the hint, E matches with 6.) Treatment of impurities with an agent to prevent coprecipitation with the desired analyte.
F.) Digestion: No description provided.
Unfortunately, no description is given for digestion. So, we can't determine its match with certainty.
G.) Peptization: Breaking up of precipitation upon washing with water in the absence of an electrolyte.
Considering the descriptions, G matches with 3.) Breaking up of precipitation upon washing with water in the absence of an electrolyte.
Based on the provided information and descriptions, the matches are as follows:
A.) Coprecipitation - 5.) Isolation of a trace component for analysis by coprecipitation with a major component in the solution.
B.) Adsorption - 2.) Binding of impurities to the surface of a crystal.
C.) Absorption - No description provided.
D.) Gathering - 4.) Letting a precipitate stand with the mother liquor to promote slow recrystallization.
E.) Masking - 6.) Treatment of impurities with an agent to prevent coprecipitation with the desired analyte.
F.) Digestion - No description provided.
G.) Peptization - 3.) Breaking up of precipitation upon washing with water in the absence of an electrolyte.
A - 1
B-3
C-2
D-4
E-5
F-6
G-7