What is selective precipitation?

Selective Precipitation of Silver Halides

Interactive Video
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Chemistry
•
11th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A process where all ions in a solution precipitate equally.
A phenomenon where only the most soluble compound precipitates.
A process where the least soluble compound precipitates first.
A method to dissolve all compounds in a solution.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which silver halide is the least soluble in water?
Silver bromide
Silver chloride
Silver fluoride
Silver iodide
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does silver iodide precipitate first in a mixture of silver halides?
It reacts fastest with silver ions.
It has the lowest Ksp value.
It is the most soluble in water.
It has the highest Ksp value.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of a compound's Ksp value being two orders of magnitude smaller than others?
It shows the compound is unstable.
It suggests the compound will precipitate first.
It means the compound will precipitate last.
It indicates the compound is more soluble.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can a homogeneous mixture of silver halides be achieved?
By heating the solution to a high temperature.
By slowly adding halide ions to a silver ion solution.
By stirring the solution vigorously.
By adding silver ions quickly to the halide solution.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to add halide ions slowly to a silver ion solution?
To ensure all ions precipitate equally.
To prevent the formation of a precipitate.
To allow selective precipitation without competition.
To increase the temperature of the solution.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example with potassium iodide and chloride, what determines when a precipitate forms?
The pH level of the solution.
The concentration of silver ions.
The temperature of the solution.
The volume of the solution.
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