To make copper(II) sulfate crystals from its salt solution,
3NA Salts and The Periodic Table

Quiz
•
Chemistry
•
8th Grade
•
Hard
Pan Pan
Used 1+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
all of the water must be evaporated away.
the precipitate must be washed.
the hot and saturated solution must be allowed to cool. .
excess acid must be present.
2.
MULTIPLE SELECT QUESTION
1 min • 5 pts
Which of the following is/are NOT NEEDED when making copper(II) sulfate crystals? Choose all possible answers.
burette
evaporating dish
filter paper
pipette
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
This is a
pipette
burette
filter funnel
conical flask
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The salt solution obtained in step 5 is not pure because
of the presence of the indicator.
the student performed the titration too quickly.
it is not crystallized.
the apparatus was not rinsed properly.
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
For the salt to be pure, the titration must be
repeated without the indicator.
done quickly.
done using another burette.
done using another acid.
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which of the following method is used to make a salt (precipitate) that is insoluble in water?
Titration
Evaporation
Crystallization
Precipitation
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Washing the precipitate with distilled water and filtering will
dissolve and remove soluble impurities.
dissolve the precipitate.
produce crystals.
produce a hot and saturated solution.
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