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Question Experimental design: 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. Conduct multiple trials and record the average temperatures as the boiling points. Select two (2) additional steps that make sense for the logical completion of this experiment. (4 points) Responses Exchange ethanol samples for methanol samples since both are clear liquids. Exchange ethanol samples for methanol samples since both are clear liquids. Design a table that can support data collection between temperatures of the water and ethanol. Design a table that can support data collection between temperatures of the water and ethanol. Mix the samples of water and ethanol in a beaker to test your prediction. Mix the samples of water and ethanol in a beaker to test your prediction. Make a prediction that ethanol will boil at a lower temperature than water due to weaker intermolecular attractions between molecules. Make a prediction that ethanol will boil at a lower temperature than water due to weaker intermolecular attractions between molecules. Skip to navigation

1 answer

To logically complete the experimental design you outlined, I would recommend the following two additional steps:

  1. Design a table that can support data collection between temperatures of the water and ethanol.

    • This step is essential for organizing your data clearly and systematically. The table should include columns for the trial number, the substance (water or ethanol), the temperature recorded for each trial, and the average temperature for each substance after multiple trials.

  2. Make a prediction that ethanol will boil at a lower temperature than water due to weaker intermolecular attractions between molecules.

    • Formulating a hypothesis before conducting the experiment is a crucial step in scientific inquiry. This will guide your expectations and help you analyze your results effectively.

These steps will enhance your experimental design and ensure that you’re prepared to collect and analyze your data properly.