Which experiment design would be the best to use in investigating the booking points of water and ethanol?
A. Heat samples of water and ethanol in two separate beakers using Bunsen burner. Measure the temperatures at which the samples boil using a thermometer. Conduct several trials and record the average temperatures as the boiling points
B. Mix samples of water and ethanol in a beaker then heat using a Bunsen burner. Measure the temperature at which the sample boils using a thermometer. Record this temperature as the boiling point.
C. Heat samples of water and ethanol in two separate beakers using a Bunsen burner. Measure the temperatures at which the samples boil using a thermometer. Record these temperatures as the boiling points.
D. Mix samples of water and ethanol in a beaker then heat using a Bunsen burner. Measure the temperature at which the sample boils using a thermometer. Conduct several trials and record the average the temperature as the boiling point.
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