

Hydrogen Gas Collection Experiment
Interactive Video
•
Chemistry, Physics, Science
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the experiment described in the video?
To determine the molar volume of oxygen at STP
To determine the molar volume of hydrogen at STP
To calculate the concentration of hydrochloric acid
To measure the density of magnesium
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is copper wire used in the experiment?
To measure the temperature
To collect hydrogen gas
To react with hydrochloric acid
To hold the magnesium ribbon in place
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the gas collection tube in the experiment?
To hold the copper wire
To measure the mass of magnesium
To collect hydrogen gas
To store hydrochloric acid
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the hydrochloric acid added to the gas collection tube?
Injected with a syringe
Carefully added with water on top
Mixed with magnesium first
Directly poured in
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when hydrochloric acid reaches the magnesium metal?
It dissolves completely
It produces oxygen gas
It produces hydrogen gas
It forms a solid compound
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the hydrogen gas allowed to stand for a few minutes after the reaction?
To cool down
To evaporate excess water
To allow the magnesium to settle
To reach the same temperature as the surrounding air
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of adjusting the water levels inside and outside the tube?
To increase the reaction rate
To equalize the pressure inside and outside the tube
To prevent gas escape
To ensure the tube is full
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