1) A group of students was following the laboratory procedure to test the pH of an...

 

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1) A group of students was following the laboratory procedure to test the pH of an unknown solution. They observed the following experimental results when tested with the pH indicators shown. Indicate the appropriate conclusion which should be drawn from each test, and then predict the pH of the solution. pH Indicator Methyl Orange Thymol Blue Phenol Red Phenolphthalein Thymolphthalein Observation Yellow Greenish Blue Red Pink Colorless Conclusion [Select] ["pH is less than 3.1", "pH is between 3.1 and 4.4", "pH is greater than 4.4"] [ Select ] ["pH is less than 1.2", "pH is between 1.2 and 2.8", "pH is between 2.8 and 8.2", "pH is between 8.2 and 9.1", "pH is greater than 9.1"] [ Select ] ["pH is less than 6.6", "pH is between 6.6 and 8.0", "pH is greater than 8.0"] [ Select ] ["pH is less than 8.0", "pH is between 8.0 and 9.8", "pH is greater than 9.8"] [ Select] ["pH is less than 9.3", "pH is between 9.3 and 10.5", "pH is greater than 10.5"] Given the data available, the pH of the solution is approximately [Select] ["1.0 or less", "2.5", "3.0", "4.0", "5.0", "6.0", "7.0", "8.0", "9.0", "10.5 or greater"]. 1) A group of students was following the laboratory procedure to test the pH of an unknown solution. They observed the following experimental results when tested with the pH indicators shown. Indicate the appropriate conclusion which should be drawn from each test, and then predict the pH of the solution. pH Indicator Methyl Orange Thymol Blue Phenol Red Phenolphthalein Thymolphthalein Observation Yellow Greenish Blue Red Pink Colorless Conclusion [Select] ["pH is less than 3.1", "pH is between 3.1 and 4.4", "pH is greater than 4.4"] [ Select ] ["pH is less than 1.2", "pH is between 1.2 and 2.8", "pH is between 2.8 and 8.2", "pH is between 8.2 and 9.1", "pH is greater than 9.1"] [ Select ] ["pH is less than 6.6", "pH is between 6.6 and 8.0", "pH is greater than 8.0"] [ Select ] ["pH is less than 8.0", "pH is between 8.0 and 9.8", "pH is greater than 9.8"] [ Select] ["pH is less than 9.3", "pH is between 9.3 and 10.5", "pH is greater than 10.5"] Given the data available, the pH of the solution is approximately [Select] ["1.0 or less", "2.5", "3.0", "4.0", "5.0", "6.0", "7.0", "8.0", "9.0", "10.5 or greater"].