Required Practical: Investigating the Effect of Concentration on Rate of Reaction (AQA GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does this practical investigate about hydrochloric acid?
What does this practical investigate about hydrochloric acid?
Effect of its concentration on reaction rate
In the Gas Collection Method, what is measured?
In the Gas Collection Method, what is measured?
Volume of gas produced
What does the Disappearing Cross Method time?
What does the Disappearing Cross Method time?
How long until cross is obscured
How is the magnesium strip prepared in Method 1?
How is the magnesium strip prepared in Method 1?
Cleaned using emery paper
What volume of hydrochloric acid is used in Method 1?
What volume of hydrochloric acid is used in Method 1?
25 cm³
How often is gas volume recorded in Method 1?
How often is gas volume recorded in Method 1?
Every 10 seconds
When should recording stop in the Gas Collection Method?
When should recording stop in the Gas Collection Method?
When gas volume stabilises
What is placed under the beaker in Method 2?
What is placed under the beaker in Method 2?
White tile with black cross
What volume of sodium thiosulfate is used in Method 2?
What volume of sodium thiosulfate is used in Method 2?
25 cm³
When is the timer stopped in Method 2?
When is the timer stopped in Method 2?
When cross is no longer visible
What is plotted on the graph axes in the analysis?
What is plotted on the graph axes in the analysis?
Rate vs concentration of HCl
What does a steeper gradient on the graph suggest?
What does a steeper gradient on the graph suggest?
Higher rate of reaction