CH202 In Lab 07 Buffers

CH202 In Lab 07 Buffers - CH202 In Lab 07 Buffers

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CH202 In Lab 07 Buffers (In-Lab) SCHNELL ZACHARY EUGENE CH202, section 005, Fall 2008 Instructor: weiming zheng TA Web Assign Current Score: 50 out of 50 Due: Tuesday, October 21, 2008 07:15 PM EDT The due date for this assignment is past. Your work can be viewed below, but no changes can be made. Important! Before you view the answer key, decide whether or not you plan to request an extension. Your Instructor may not grant you an extension if you have viewed the answer key. Request Extension View Key 1. 35/35 points Data Tables and In-Lab Questions Data Table A. pH Data for Acetate Buffers (Direct Method) Solution # mL of 0.60 M HC 2 H 3 O 2 mL of 0.60 M NaC 2 H 3 O 2 pH 1A 30 0 2.48 2A 30 10 4.26 3A 0 30 11.52 4A 10 30 9.74 5A 20 20 4.74 Question 3. Based on your observations in Part A, select all of the following statements that are true. the pH decreases as the mmol of acid added increases the pH decreases as the mL of acid added increases the pH decreases as the mmol of acid added minus the mmol of base added
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This note was uploaded on 02/03/2009 for the course CH CH 102, 20 taught by Professor Ta,ta,sandberg during the Fall '08 term at N.C. State.

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CH202 In Lab 07 Buffers - CH202 In Lab 07 Buffers

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