Required Practical: Investigating the Effect of Concentration on Rate of Reaction (AQA GCSE Chemistry): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What variable is being investigated in this practical?
What variable is being investigated in this practical?
Concentration of hydrochloric acid
What does the Gas Collection Method measure?
What does the Gas Collection Method measure?
Volume of gas produced
What volume of hydrochloric acid is used in the Gas Collection Method?
What volume of hydrochloric acid is used in the Gas Collection Method?
25 cm³
How should the magnesium strip be prepared?
How should the magnesium strip be prepared?
Clean it using emery paper
How often should gas volume be recorded in the Gas Collection Method?
How often should gas volume be recorded in the Gas Collection Method?
Every 10 seconds
When should you stop measuring in the Gas Collection Method?
When should you stop measuring in the Gas Collection Method?
When the gas volume stabilises
What observation indicates the end point in the Disappearing Cross Method?
What observation indicates the end point in the Disappearing Cross Method?
Cross is no longer visible
What volume of sodium thiosulfate is used in the Disappearing Cross Method?
What volume of sodium thiosulfate is used in the Disappearing Cross Method?
25 cm³
When should the timer be started in the Disappearing Cross Method?
When should the timer be started in the Disappearing Cross Method?
Immediately after adding acid
What should be plotted on the graph during analysis?
What should be plotted on the graph during analysis?
Rate of reaction vs concentration
What does a steeper gradient on the graph indicate?
What does a steeper gradient on the graph indicate?
Higher rate of reaction
How should concentrations be varied when repeating the experiments?
How should concentrations be varied when repeating the experiments?
Increase by equal increments