Figure 26-22 shows the separation of substituted benzoates. There is a peak of unknown identity at 86.0
Question:
Figure 26-22 shows the separation of substituted benzoates. There is a peak of unknown identity at 86.0 s.86.0 s.
a. Is the unknown a cation, neutral, or an anion?
b. Find the apparent mobility and electrophoretic mobility of the unknown peak.
Figure 26-22
Transcribed Image Text:
Absorbance → rumah Methanol 0.0 Benzoate 2.5 5.0 Migration time (min) Harris/Lucy, Quantitative Chemical Analysis, 10e, © 2020 W. H. Freeman and Company 2-Methylbenzoate 7.5 FIGURE 26-22 Capillary electrophoresis separation of substituted benzoic acids prepared by a student using the Grignard reaction. Electrophoresis carried out at pH 4.20PH 4.20 (pkapKa of benzoic acid) using 5 mM 5 mM acetate buffer at 2.50x1042.50 x 10 VV in a capillary with a length of 0.500 m0.500 m and a distance to the detector of 0.400 m.0.400 m. The negative baseline deflection from methanol in the sample was used to measure the electroosmotic flow.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 41% (12 reviews)
Calculation a The unknown is a cation b The apparent mobility o...View the full answer
Answered By
Labindao Antoque
I graduated in 2018 with a Bachelor of Science degree in Psychology from Dalubhasaan ng Lungsod ng San Pablo. I tutored students in classes and out of classes. I use a variety of strategies to tutor students that include: lecture, discussions about the subject matter, problem solving examples using the principles of the subject matter being discussed in class , homework assignments that are directed towards reinforcing what we learn in class , and detailed practice problems help students to master a concept. I also do thorough research on Internet resources or textbooks so that I know what students need to learn in order to master what is being taught in class .
0.00
0 Reviews
10+ Question Solved
Related Book For
Quantitative Chemical Analysis
ISBN: 9781319164300
10th Edition
Authors: Daniel C. Harris, Charles A. Lucy
Question Posted:
Students also viewed these Sciences questions
-
The figure below shows the separation of two enantiomers on a chiral stationary phase. (a) From tr and w1/2, find N for each peak. Lenantiomer 4.70 min war = 0.28 min D enantiomer 5.37 min W12 0.35...
-
Electrophoretic mobility is proportional to charge. If members of a charge ladder (Figure 25-26) have the same friction coefficient (that is, the same size and shape), then the charge of the...
-
FIGURE EX24.27 shows a hollow cavity within a neutral conductor. A point charge Q is inside the cavity. What is the net electric flux through the closed surface that surrounds the conductor? Closed...
-
16. Read each brief description of a project in the following table and classify its type according to the Obeng model (Fog, Quest, Movie, Paint by Numbers (PBN)). (5) Project Reduce the cost of...
-
Suppose that Y is a three-dimensional random vector with coordinates Y1, Y2, and Y3, and suppose that the covariance matrix of Y is as follows: Determine the value of Var(3Y1 + Y2 2Y3 + 8). T 93 01...
-
Identify the molecularity of each of the following elementary reactions. a. NO + O 3 NO 2 + O 2 b. NOCl 2 + NO 2NOCl c. O 3 O 2 + O d. H + H + N 2 H 2 + N * 2
-
g) How can the analysis be interpreted to give an estimate of the effect of omitting the low-temperature stimulus on the subsequent development of plants in each family?
-
Danielle Hastings was recently hired as a cost analyst by CareNet Medical Supplies Inc. One of Danielles first assignments was to perform a net present value analysis for a new warehouse. Danielle...
-
Menards provides an 11% rebate on all sales during the month of May. There were 1,000,000 dollars in sales. $300,000 was received in cash and $700 was visa receivable. The cost of inventory was...
-
The Coca-Cola Company is a global soft drink beverage company (ticker symbol = KO) that is a primary and direct competitor with Starbucks. The data in Exhibits 12.14 to 12.16 (pages 806-809) include...
-
What is electroosmosis?
-
Some bath salts are synthetic cathinones designed to circumvent laws, but have unknown properties and side effects. The acid dissociation constant affects the toxicology of the derivatives....
-
In the United States, Tang has been around for half a century, and the powdered, tangerine-flavored drink was the chosen beverage for some of the early NASA space flights. For example, in 1962...
-
Directions: Put your feet in the shoes of the business owner and suggest specific ways on how a business can gain profit and how it can be avoid loss Ways to Gain Profit 1. 2. 3. 4. 5. 1. 2. 3. 4. 5....
-
Define business intelligence Briefly discuss how your organisation can use business intelligence to improve decision-making Please see below rubric as guidance. Kindly list references in APA 7th...
-
Mr Santos apply for college educational plan for his 3 children .The 3 children ages are 6 yrs old , 3 yrs old and 1 yr old. The fund will be set-up the deposit of a fixed sum on the child's current...
-
Recovery Centers of America needs to acquire new vehicles that will cost $2.5 million across its six state service area. It plans to use the vehicles for three years, at which time new vehicles will...
-
The following program is supposed to allow the user to enter a list of numbers, then print them out formatted with 2 decimal positions. However, there are 3 errors. Indicate the line number of each...
-
You buy a dog whistle that operates at 21 kHz, but when you blow into it, your dog does not show the slightest reaction. You decide to see if you can hear the whistle yourself. Two friends help you....
-
Akramin just graduated with a Master of Engineering in Manufacturing Engineering and landed a new job in Melaka with a starting salary of RM 4,000 per month. There are a number of things that he...
-
By what percentage does a dilute aqueous solution expand when heated from 15 to 25C? If a 0.500 0 M solution is prepared at 15C, what would its molarity be at 25C?
-
By what percentage does a dilute aqueous solution expand when heated from 15 to 25C? If a 0.500 0 M solution is prepared at 15C, what would its molarity be at 25C?
-
Explain the principles of operation of electronic and mechanical balances.
-
nformation pertaining to Noskey Corporation s sales revenue follows: November 2 0 2 1 ( Actual ) December 2 0 2 1 ( Budgeted ) January 2 0 2 2 ( Budgeted ) Cash sales $ 1 0 5 , 0 0 0 $ 1 1 5 , 0 0 0...
-
The management team of Netflix maintains a stable dividend using the Lintner model: Dt+1 = Dt + EPS Target Payout Where Dt (Dt+1) = dividend in the current period t (the next period t + 1) EPSt =...
-
#1 #2 hapter 50 10 D Werences lav Help Required information [The following information applies to the questions displayed below) Archer Company is a wholesaler of custom-built air-conditioning units...
Study smarter with the SolutionInn App