×
Log in to StudySoup
Get Full Access to Quantitative Chemical Analysis - 8 Edition - Chapter 25 - Problem 25-27
Join StudySoup for FREE
Get Full Access to Quantitative Chemical Analysis - 8 Edition - Chapter 25 - Problem 25-27

Already have an account? Login here
×
Reset your password

Consider the electrophoresis of heparin in Figure 25-21. (a) Electrophoresis was carried

Quantitative Chemical Analysis | 8th Edition | ISBN: 9781429218153 | Authors: Daniel C. Harris ISBN: 9781429218153 475

Solution for problem 25-27 Chapter 25

Quantitative Chemical Analysis | 8th Edition

  • Textbook Solutions
  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Quantitative Chemical Analysis | 8th Edition | ISBN: 9781429218153 | Authors: Daniel C. Harris

Quantitative Chemical Analysis | 8th Edition

4 5 1 307 Reviews
17
3
Problem 25-27

Consider the electrophoresis of heparin in Figure 25-21. (a) Electrophoresis was carried out at pH 2.8, at which sulfate groups are negative. Why was reverse polarity (detector end positive) used? (b) The ionic strength of 30 mg/mL heparin samples is higher than that of typical samples for electrophoresis. What is the benefit of high buffer concentration (0.6 M phosphate)? (c) A narrow capillary (25 m diameter) was chosen to be compatible with the high-ionic-strength buffer. What is the advantage of the narrow capillary? (d) Li has lower mobility than Na. Explain why lithium phosphate can be used at higher electric field strength than sodium phosphate to generate the same current. What is the advantage of higher field strength for this separation? 2

Step-by-Step Solution:
Step 1 of 3

Gabriela Montalvo C10596017 CHM 206­NX Sicheng Tang Experiment 7: SN1 and SN2 Reactions I . Introduction The objective of this lab was to determine whether different reagents are more reactive in SN2 or SN1 reactions. The purpose of this experiment was to observe the reactions of Alkyl Halides with different types of solvents and understand the mechanism of these reactions. In such reactions, a leaving group on an organic substrate is replaced by a nucleophile. The difference is in the mechanism. SN2 reactions occur in a single step, whereas SN1 reactions occur in two steps with a carbocation intermediate. SN2 happens when a bond is broken and a new bond is produced only in one reaction step. The structure of the organic substrate determines which mechanism it

Step 2 of 3

Chapter 25, Problem 25-27 is Solved
Step 3 of 3

Textbook: Quantitative Chemical Analysis
Edition: 8
Author: Daniel C. Harris
ISBN: 9781429218153

Since the solution to 25-27 from 25 chapter was answered, more than 233 students have viewed the full step-by-step answer. The answer to “Consider the electrophoresis of heparin in Figure 25-21. (a) Electrophoresis was carried out at pH 2.8, at which sulfate groups are negative. Why was reverse polarity (detector end positive) used? (b) The ionic strength of 30 mg/mL heparin samples is higher than that of typical samples for electrophoresis. What is the benefit of high buffer concentration (0.6 M phosphate)? (c) A narrow capillary (25 m diameter) was chosen to be compatible with the high-ionic-strength buffer. What is the advantage of the narrow capillary? (d) Li has lower mobility than Na. Explain why lithium phosphate can be used at higher electric field strength than sodium phosphate to generate the same current. What is the advantage of higher field strength for this separation? 2” is broken down into a number of easy to follow steps, and 122 words. Quantitative Chemical Analysis was written by and is associated to the ISBN: 9781429218153. This full solution covers the following key subjects: . This expansive textbook survival guide covers 55 chapters, and 1224 solutions. This textbook survival guide was created for the textbook: Quantitative Chemical Analysis, edition: 8. The full step-by-step solution to problem: 25-27 from chapter: 25 was answered by , our top Chemistry solution expert on 03/16/18, 04:33PM.

Other solutions

People also purchased

Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

Consider the electrophoresis of heparin in Figure 25-21. (a) Electrophoresis was carried