The starter and exit quiz of the lesson “Combustion of alcohols: practical”, from the unit “Organic chemistry” (Year 11 Science) by Oak National Academy.
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Oak National Academy
12 questions
Name the alcohol shown in the image
What hazard symbol would you expect to find on an alcohol burner in the lab?
Which variable is defined as the single variant that is changed in an investigation.
What is the molecular formula of propanol?
In a calorimetry experiment the initial temperature of water is 23ᵒC. The water temperature rises to 55ᵒC. What is the temperature change?
What number needs to be placed in front of the CO₂ to balance this equation? C₄H₉OH + 6O₂ → _CO₂ + 5H₂O.
Which of the following statements about the combustion of alcohols are true?
What is the name of an experiment that can be used to measure the energy released from a fuel such as alcohol?
2 g of methanol, ethanol and propanol were combusted in a calorimetry experiment. Which fuel will cause the greatest temperature rise in 50 cm³ of water in the calorimeter?
Using the data of the mass needed to cause a temperature rise. Which alcohol releases the most energy during combustion?
Calculate the mass of butanol needed to produce a 1°C temperature rise when 1.3 g of butanol produced a 49°C rise in temperature of 100 cm³ of water.
Calculate the mass of propanol needed to produce a 10°C temperature rise when 1.45 g of propanol produced a 46°C rise in temperature of 100 cm³ of water.
