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This question is about the rate of reaction between calcium carbonate and dilute hydrochloric acid - Edexcel - GCSE Chemistry - Question 6 - 2021 - Paper 1
Question 6
This question is about the rate of reaction between calcium carbonate and dilute hydrochloric acid. The word equation for this reaction is calcium carbonate + hydr... show full transcript
Worked Solution & Example Answer:This question is about the rate of reaction between calcium carbonate and dilute hydrochloric acid - Edexcel - GCSE Chemistry - Question 6 - 2021 - Paper 1
Step 1
Step 2
Complete the diagram in Figure 7 to show the apparatus to collect the gas produced and measure its volume.
Answer
The diagram should include:
- A delivery tube connected to the conical flask, leading into a water trough.
- A gas syringe or an inverted measuring cylinder placed in the water to collect the gas produced.
- The delivery tube should be directed to ensure that gas bubbles pass into the measuring cylinder or gas syringe for accurate volume measurement.
Step 3
State what could be used to keep the temperature of the conical flask and its contents at a temperature of 45°C throughout the reaction.
Answer
A water bath can be used to maintain the temperature of the conical flask at 45°C. It would involve submerging the flask in water heated to the desired temperature, ensuring consistent temperature control.