What is the function of phenolpthalein in the titration
Practical Skills Quizizz

Quiz
•
Chemistry
•
3rd Grade
•
Medium
NORAZAH BM
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
to produce a colour solution
to form and an acidic solution
for form a base solution
as an indicator for the acid base titration
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a standard solution?
Solution of known concentration
Solution of known mass
Solution of known volume
Solution of known substance
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why the volumetric flask containing a solution prepared is shaken before top up to the mark with water?
because the solute cannot be dissolved by the solvent
To avoid the solute from sticking to the flask
for the particles to be closer before adding solvent
to form a homogeneous solution
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Before starts titrating, ensure no air bubble trap at the tip of the burette, the reason is
to obtain a more accurate result data
to ensure no impurities
air disrupts the flowing of the solution
To filled the burred with 50.00 mL solution.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is not an indicator for an acid base titration?
methyl orange
phenolphthaline
methyl red
sodium carbonate
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
These are how to remove air bubble trap at the tip of the burette EXCEPT
run rapidly few mililiters of the titrant through the tip of the burette.
rinse the burette with distilled water
tap gently the side of the burette tip while the solution is flowing.
grasp the burette and give it a downward jerk while the stop cork is open
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why the pipette and burette should be rinsed with distilled water followed by the solution to be filled?
plenty of solution available to be used
does as instructed by teacher but does not know why
to ensure they are cleaned and to avoid contamination.
the tiny volume of the solution remaining will change the concentration of the solution filled
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