
Heating Copper Sulfate Experiment
Interactive Video
•
Chemistry, Science, Physics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in the experiment involving the crucible?
Heat the crucible to evaporate water.
Calculate the moles of copper sulfate.
Record the weight of the empty crucible.
Measure the weight of the crucible with the solution.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to record the weight of the crucible with the copper sulfate solution?
To determine the volume of the solution.
To calculate the weight of the solution itself.
To find the density of the solution.
To measure the temperature of the solution.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What indicates that the water is being driven off during heating?
The solution becomes more viscous.
Vapor is observed coming off.
The solution starts bubbling.
The solution turns green.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What color change should be observed to know the heating process is almost complete?
From blue to dull gray.
From red to gray.
From gray to blue.
From blue to red.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should be done if there are still blue spots after heating?
Add more copper sulfate.
Weigh the crucible immediately.
Continue heating until the blue spots disappear.
Add water to the solution.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After heating, what is the next step in the experiment?
Reheat the solution.
Weigh the crucible with the remaining substance.
Add water to the solution.
Add more copper sulfate.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it necessary to subtract the weight of the empty crucible after the final measurement?
To measure the weight of the added copper sulfate.
To determine the weight of the remaining substance.
To find the weight of the remaining water.
To calculate the total weight of the experiment.
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