Lab 11 - Acid-Base Studies

4 measure 30 ml of 010 m naoh and add it carefully to

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Unformatted text preview: ry. 4 Measure 3.0 mL of 0.10 M NaOH and add it carefully to the HCl solution in the beaker and stir. Record the pH of the new solution in Table C as 3.0 mL NaOH. 5 Add an additional 3.0 mL of 0.10 M NaOH to the beaker, stir, and record the pH in Table C as 6.0 mL NaOH. The total volume in the beaker should now be 16 mL. 6 Add a final 6.0 mL of 0.10 M NaOH to the beaker and record the pH in Table C as 12.0 mL NaOH. The total volume should now be 22 mL. 7 Turn off the pH probe. 8 Discard the solution, wash and dry all your glassware and return it to the set- up area where you found it. 9 Before leaving, go to a computer in the laboratory and enter your results in the In- Lab assignment. If all results are scored as correct, log out. If not all results are correct, try to find the error or consult with your lab instructor. When all results are correct, note them and log out of WebAssign. The In- Lab assignment must be completed by the end of the lab period. If additional time is required, please consult with your lab instructor. Copyright © 2011 Advanced Instructional Systems, Inc. and North Carolina State University | Credits www.webassig n.net/ebooks/wsug encheml1/lab_11/manual.html 5/5...
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This document was uploaded on 01/22/2014.

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