Lab 11 - Acid-Base Studies

10 m hcl 10 ml 0010 m hcl 10 ml 00010 m hcl 10 ml 010

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Unformatted text preview: eagents ~25 mL 0.10 M HCl ~10 mL 0.010 M HCl ~10 mL 0.0010 M HCl ~10 mL 0.10 M HC2H3O2 ~25 mL 0.10 M NaOH ~10 mL 0.010 M NaOH ~10 mL 0.10 M NH3 ~2 drops vinegar ~2 drops bleach ~2 drops ammonia ~2 drops vitamin C ~2 drops lemon juice ~2 drops baking soda ~2 drops dishwasher detergent www.webassig n.net/ebooks/wsug encheml1/lab_11/manual.html 3/5 4/15/13 Lab 11 - Acid- Base Studies ~2 drops carbonated water ~2 drops baking powder Safety HCl, NaOH, HC2H3O2 and NH3 are corrosive. They can attack the skin and cause permanent damage to the eyes. If any of these solutions splash into your eyes, use the eyewash immediately. Hold your eyes open and flush with water. If contact with skin or clothing occurs, flush the affected area with water. Have your lab partner notify your instructor about the spill. HCl, HC2H3O2 and NH3 solutions give off highly irritating vapors. Do not inhale them. Work with concentrated solutions under the hood so vapors do not build up in the lab. If you do inhale enough vapor to have a problem, move to fresh air. Have your lab partner notify your instructor about the accident. Acid- base reactions are highly exothermic. They can cause water to boil and splash hot, corrosive solution out of the vessel in which they were mixed. Do not directly combine solutions with concentrations greater than 0.1 M. Use caution when pouring solutions or disposing of them. Waste Disposal All wastes should be put into the large waste container designated by your instructor. When disposing of concentrated solutions, pour them slowly. Lab Procedure Please print the worksheet for this lab. You will need this sheet to record your data. In this experiment, you will be using p...
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