CHM 130 LL Lab 12.docx - CHM130LL Lab 12 – Exploring...

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CHM130LLLab 12 – Exploring IndicatorsName:Student AComplete the following items by typing into the text box provided. The boxes will increase in size if additionalspace is necessary. Please be sure to save all your work as an MS Word document to submit properly.Part I – Calibration of Red Cabbage Juice IndicatorA. Data Table 1: Calibration of Red Cabbage Juice Indicator with a BaseFill in the data table. Since your goal is to add sufficient ammonia to the red cabbage juice indicator to achieve ayellow color, you can stop data collection when you get a yellow solution. In other words, you may not need to useevery line in the data table. However, you may need to add lines to the data table if 20 drops are insufficient toreach the yellow color. (8 pts)Drops of AmmoniaColor of Final SolutionpH of Final Solution0Purple71Blue Green92Blue Green93Blue Green94Green95Green96Green107Green98Green99Sea Green910Sea Green1011Sea Green1012Yellow Green1013Yellow Green914Yellow Green1015Yellow1016Yellow1017Yellow1018Yellow1019Yellow1020Yellow10C. Data Table 2: Calibration of Red Cabbage Juice Indicator with an AcidFill in the data table. Since your goal is to add sufficient vinegar to the red cabbage juice indicator to achieve ared color, you can stop data collection when you get a red solution. In other words, you may not need to useevery line in the data table. However, you may need to add lines to the data table if 20 drops are insufficient toreach the red color. (8 pts)
Drops of VinegarColor of Final SolutionpH of Final Solution0Green71Purple72Purple Pink73Purple Pink64Purple Pink65Purple Pink66Purple Pink57Purple Pink58Purple Pink59Pink410Pink411Pink412Pink413Pink314Pink315Pink316Pink317Red218Red219Red2
D. Insert the following photo from Part I with your name and MEID showing in the photo (5 pts):Photo B:Insert a photo of the well plate showing all of the vinegar solutions tested complete with the labeledwhite paper showing the pH values of each vinegar solution tested.
E. Follow-Up Questions1.What are the chemical formula and the dissociation reaction for ammonia? Your dissociation reactionshould include water as a reactant and charges should be included on any ions. (5 pts)

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Term
Fall
Professor
olson
Tags
pH, pH of Household Substances

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