2 Describe how to use and interpret pH paper 3 pH ranges from to a Acidic

2 describe how to use and interpret ph paper 3 ph

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2. Describe how to use and interpret pH paper. 3. pH ranges from _________ to _________. a. Acidic solution = b. Neutral solution = c. Basic solution = Procedure: 4. Record the names of the six solutions listed under numbers 1-6 in the data table below under the “Solutions” column. 5. Predict the pH values of these solutions. Enter these numbers (from 0-14) in the “Predicted pH Value” column in the table. Solutions Predicted pH Actual pH Acid or Base 6. Use the pH paper to test the first solution. Click and drag the paper into the test tube, then match its color on the scale of pH values. Use the pH value counter (the arrows beneath the name of each solution) to indicate the pH value of the solution. 7. Use separate strips of pH paper to test each of the remaining solutions and determine its pH. Adjust the pH value counter for each solution. 8. When all the pH values are entered, click the “Check” button on the bottom to see if your answers are correct. If a pH value is incorrect, the number is highlighted yellow. Use the pH paper to test the solution again. Adjust the pH value counter accordingly. Then click “Check” again. 9. After the pH values of all six solutions are correct, record your data in the “Actual pH Value” column in the data table.
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10. In the last column in the table, decide whether each solution is acidic, neutral, or basic. Analysis: 11. What prior knowledge did you use to predict the pH values of the solutions? 12. How did your predicted pH values for each of the common solutions compare with the actual values for those solutions? 13. Of the six solutions you tested, which one was the most acidic? Which one was the most basic? Which one was the closest to neutral? 14. Milk of magnesia is sometimes used as a remedy for an “acid stomach.” Would you expect the pH of milk of magnesia to be less than 7, more than 7, or 7? WHY? 15. What are some real-world applications in which pH is an important factor?
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  • Fall '15
  • joshcash
  • pH, PH of water

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