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Sean developed an experiment to discover the pH of common household substances. He used a pH meter to gather his data. Over four

Posted on October 22, 2021 By Ponyolovezsosuk1074 1 Comment on Sean developed an experiment to discover the pH of common household substances. He used a pH meter to gather his data. Over four

Sean developed an experiment to discover the pH of common household substances. He used a pH meter to gather his data. Over four trials, he found the pH of lemon juice to be 2.4, 2.0, 2.2, and 2.1. The pH of orange juice in 4 different trials was 3.5, 4.0, 3.6, and 3.4. The pH of vinegar was discovered to be 2.5, 2.2, 2.3, and 2.6. Finally he recorded the pH of apple juice to be 3.4, 3.5, 3.7, and 3.3. Organize his observations into a data table. Be sure to calculate a mean for each substance. Also don't forget to include a title.

Make a bar graph of the average pH of each substance. When making a bar graph find your range and then choose an appropriate unit. In the data above the lowest value is 2.0 and the greatest value is 4.0. That is only a range of 2.0. Starting your bar graph at "1.5" and increasing by "0.1" is one suggestion. Depending on your graph paper you may want to adjust your starting point, but you should definitely use "0.1" graduations on the y-axis. Don't forget to title your bar graph.

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Comment (1) on “Sean developed an experiment to discover the pH of common household substances. He used a pH meter to gather his data. Over four”

  1. maddyjones4172 says:
    October 24, 2021 at 4:05 am

    Your range on a graph always the values that y could possibly be. These often include infinity since lines trend in one direction or the other. 

    Reply

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