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a. How could the rate of this reaction be measured in these experiments? - VCE - SSCE Chemistry - Question 1 - 2012 - Paper 1
Question 1
a. How could the rate of this reaction be measured in these experiments?
Worked Solution & Example Answer:a. How could the rate of this reaction be measured in these experiments? - VCE - SSCE Chemistry - Question 1 - 2012 - Paper 1
Step 1
Measuring the mass of the beaker and contents over a time interval
Answer
To measure the rate of reaction, the mass of the beaker and its contents can be recorded at regular time intervals. By tracking the change in mass, one can determine the amount of calcium carbonate that has reacted, which will correlate to the amount of carbon dioxide produced.
Step 2
Measuring the volume of CO₂ produced over time
Answer
Alternatively, the volume of carbon dioxide (CO₂) produced at various time points can be measured. This can be done by capturing the gas in a measuring cylinder or gas syringe, allowing for a clear quantification of the increase in CO₂ volume over time.