6.1 - Rate of Production of Oxygen from Hydrogen Peroxide (Leaving Cert Chemistry): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
ShowHide
Practise the questions
13 questions from this quiz
What two products are formed from the decomposition of hydrogen peroxide?
What two products are formed from the decomposition of hydrogen peroxide?
Water and oxygen
What is the role of manganese(IV) oxide in this experiment?
What is the role of manganese(IV) oxide in this experiment?
It acts as a catalyst
In Method 1, how is the oxygen gas collected?
In Method 1, how is the oxygen gas collected?
By water displacement
What is the main safety hazard of hydrogen peroxide?
What is the main safety hazard of hydrogen peroxide?
It is corrosive and causes burns
What is the main safety concern with manganese(IV) oxide?
What is the main safety concern with manganese(IV) oxide?
Harmful if inhaled
In Method 1, what volume of is diluted to 50 cm³?
In Method 1, what volume of is diluted to 50 cm³?
5 cm³
What mass of manganese(IV) oxide is used in the experiment?
What mass of manganese(IV) oxide is used in the experiment?
0.5 g
In Method 1, how often is the volume of oxygen recorded?
In Method 1, how often is the volume of oxygen recorded?
Every 30 seconds
Why is the slope of the graph steepest at the beginning?
Why is the slope of the graph steepest at the beginning?
concentration is highest
How can you tell when the reaction is complete?
How can you tell when the reaction is complete?
The graph levels off
What happens if the amount of used is doubled?
What happens if the amount of used is doubled?
Rate increases, total volume same
What effect does doubling concentration have?
What effect does doubling concentration have?
Doubles volume and increases rate
Why take readings at eye level when measuring gas volume?
Why take readings at eye level when measuring gas volume?
To avoid parallax error