RP7: Measuring the rate of a reaction
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10 Terms
What are the two methods for measuring rate of a reaction? (2)
- Initial rates method
- Continuous monitoring
What is the overall method for measuring rate of reaction by initial rates method? (6)
What is the overall method for measuring rate of reaction by continuous monitoring method? (5)
What method is used to measure the rate of reaction by initial rates method? (1)
Measuring the volume of hydrogen gas collected in 30 seconds.
What volume and concentration of hydrochloric acid is used in the initial rates method? (2)
- Volume: 50 cm³
- Concentration: 1.0 mol dm⁻³
What apparatus is set up to measure gas production in both methods? (1)
A gas syringe is set up in the stand.
What mass of magnesium is used in both methods? (1)
0.20 g of magnesium
How is the rate of reaction determined in the initial rates method? (1)
By recording the volume of hydrogen gas collected in 30 seconds.
What variable is changed when repeating the initial rates method? (1)
Different concentrations of hydrochloric acid are used
How is the rate of reaction measured in the continuous monitoring method? (1)
The volume of hydrogen gas collected is recorded every 15 seconds until the reaction is finished