The method for determining the concentration of nitrate and nitrite using capillary electrophoresiis, used an acidic buffer to minimize the size of the electroosmotic flow. interference at the detector. the flow of positive charged species to the anode. the size of the electrophoretic flow.

The method for determining the concentration of nitrate and nitrite using capillary electrophoresiis, used an acidic buffer to minimize the size of the electroosmotic flow. interference at the detector. the flow of positive charged species to the anode. the size of the electrophoretic flow.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter11: Dynamic Electrochemistry

Section: Chapter Questions

Problem 10P

See similar textbooks

Related questions

Q: 1. Calculate the potential of a silver electrode following the addition of 10 ml of 0.1 M of CaCl to…

Q: Stock solution of starch is prepared by dissolving a certain amount of starch (MM = 342.30 g/mol) in…

A: Given : Volume of buffer solution = 100 ml Concentration of starch solution = 2.92 μmol/mL = 2.92…

Q: Explain which hydrolyzed component will be positive in the

A: Alkenes can be defined as the organic compounds that contain double bonds between carbon atoms in…

Q: The room was 3.580m wide. What is the width in feet? Given Measurement Unit Needed 3.580 m width…

A: We have given width = 3.580 m. We need to convert it into feet. The answer and conversion is given…

Q: A certain reaction is first order in N, and second order in H,. Use this information to complete the…

A: We will use the rate law to calculate the rate constant than we will put the value of rate constant…

Q: Determine the value of ASgurr at 298 K, and predict whether or not the reaction is spontaneous at…

Q: Why is an aqueous cream and procaine solution unstable and subject to cracking

Q: Calculate AG and the exponent value (the x of 10) for K, for the following reactions at 25°C: (a)…

Q: • Name or write formulas for the following acide Hydroiodie scid ulfurous acida HNO Hileag 10, >…

Q: (c) Write the products and comment on the natures of the following reactions :

A: organometallics reaction

Q: Calculate the concentration of CgH,06² in an aqueous solution of 0.0415 M ascorbic acid, H,GoH,06…

A: Ascorbic acid is a diprotic acid with Ka1 = 7.94*10-5 and Ka2 = 2.5*10-12. Initial concentration of…

Q: Experiment 10: Chemical Equilibrium DATA SHEET Parts A and B: Equilibrium involving Thymol Blue Part…

A: Equilibrium involving thymol blue:

Q: Calculate the entropy change that occurs in the system when 56.2 g of liquid hexane (86.17 g/mol)…

A: As you asked only first question that is question number-(18) so I am going to solve this question…

Q: What is the major organic product obtained from the following reaction? 1. NABH, 2. H2O

A: This is an exapmle of reduction of a ketone using NaBH4 reducing agent resulting in the formation of…

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into…

Q: Draw the Lewis dot structure and one resonance form for the monothiocarbonate ion: Co,s When drawing…

A: we need to draw the Lewis structure of monothiocarbonate ion

Q: What is the atomic number for the element that is in group VIIB(7) and period 4? Atomic number = 25…

A: There are 7 periods and 18 groups in the modern periodic table. Elements are arranged in order of…

Q: Br +bu- Ok DMSO Ph Me Ph Me A Ph H Me Me w Br Ph 4 Br Br Me (1) th Br Me Ph (2) (B) (4)

Q: Assume household vinegar contains 5% acetic acid by weight and that the density of vinegar is the…

A: Given : Volume of household vinegar = 404 ml Density of vinegar = 1 gm/ml Weight % of acetic acid…

Q: Question 6 For the compound. Name the rompound I dentify each chiral center Are goometric isomers…

A: Isomers are the molecules having same molecular formula but different arrangement of atoms in it.

Q: 32p has a half-life of 14.3 days. The original sample of 32P has a mass of,1.88 g. Approximately…

A: Half life of an element can be defined as the time period during which concentration of a species…

Q: Use the References to access important valu Which of the statements below apply to the following…

Q: Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate…

A: Initial moles = 150 mmol = 0.15 mol Moles after time t = 75 mmol = 0.075 mol Volume = 450 ml =…

Q: 1. Calculate the frequency and the energy of a mole of photons associated with an electromagnetic…

Q: When a curved arrow starts from a o bond and points to an atom, the o bond breaks. If the molecule…

A: Carbocation is species in which carbon is positively charged and carbon atom is sp2 hybridized.

Q: 2. For an enzyme obeying Michaelis-Menten kinetics, at what concentration of S (substrate, expressed…

A: The Michaelis-Menten equation tells about the kinetic characteristics of an enzyme-catalyzed…

Q: 1- How can you prepare 5% NaOH solution ?

A: Given : Concentration of NaOH solution = 5 %

Q: Use the observations about each chemical reaction in the table below to decide the sign (positive or…

Q: Question 5 For the lompound: Br Name the Componnd I dentify each chiral center Are geometric isomers…

Q: Q3:- In a linear polarization experiment to iron corrosion in HCI, a current increase(Aicorr) of…

A: Given that in a linear polarization Experiment e vortage Increase (E) is 4 mV Current Increase (I)…

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

A: Given data :

Q: Calculate the root-mean-square (rms) speed (in m/s) of propane (C3H8) gas molecules at a temperature…

A: we know the expression of the root mean square speed is : => Vrms = √3RT/M where, vrms is the…

Q: Consider the atomic centers in the system below, in point group Dah- Develop a transformation matrix…

A: Character is developed for a particular symmetry element by operating that symmetry and after…

Q: Meleulan foomule GeHigOg Smylet hapider

A: Organic NMR

Q: Four liquids are described in the table below. Use the second column of the table to explain the…

A: We use the formulas below to find elevation in boiling point(∆Tb) and depression in freezing…

Q: Question 15 -n the following reaction at a5°c:a6,H,150,>40,12H,0) aloulate AH alculate AS" =lculate…

A: Given that - Temperature = 25°C = 298 K The Balanced Chemical equation - 2C2H2 + 5O2 ---> 4CO2…

Q: Nitric acid is a key industrial chemical, largely used to make fertilizers and explosives. The first…

Q: What are the chemical interactions present when salicylic acid mixes with an aqueous cream base

Q: Read the curved arrow in the mechanism shown and draw the product. Be sure to draw lone pairs.…

Q: Alkane halogenation is a two-step reaction, as shown in the image. Using the table of bond…

A: All the necessary calculations have been done in the following step.

Q: Chemistry 1. CH3MgBr 2. H,о What is the stereochemistry of the product of the above reaction? O…

A: Aldehyde can be defined as.an organic compound in which CHO group is attached to carbon atom in…

Q: Tin-129 is radioactive and has a half life of 2.23 minutes. How much of a 3.00 mg sample would be…

A: We have to predict the amount of sample left

Q: 6. A protein increases its distance from the rotation axis from 7.6 to 9.8 cm during a 4-h…

Q: A 46-kg woman cheats on her diet and eats a 685-Calorie (685 kcal) jelly doughnut for breakfast. (a)…

Q: Derive a method for the preparation of the following compounds using acetoacetic ester or malonic…

A: Detail synthetic pathway is given below

Q: At 25 ⁰C, the vapor pressure of water is 23.8 mm Hg. What is the vapor pressure of water at 50 ⁰C?…

Q: 1. CH3MgBr 2. H30 What is the stereochemistry of the product of the above reaction? achiral…

A: Firstly grignard reagent produces nucleophile which is CH3- ion and this ion attack on carbonyl…

Q: An aqueous solutiona contains D.150 M HCI at 25.0°C. the pH OF the solution is

Q: ) The figure above shows a gold surface with Ar and He atoms adsorbed. The large grey spheres…

A: The diagram shows that gold surface is present as cubic close packing. The unit cell show Ar atoms…

Q: Consider the fructose-1,6-bisphosphatase reaction. Calculate the free energy change if the ratio of…

A: The correct answer about free energy change is given below

Question

The method for determining the concentration of nitrate and nitrite using capillary
electrophoresiis, used an acidic buffer to minimize
the size of the electroosmotic flow.
interference at the detector.
the flow of positive charged species to the anode.
the size of the electrophoretic flow.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Given

VIEW

Answer

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

water sample is determined through a spectrophotometric method based on the reaction of phosphate ion with molybdate ion, by originating a yellow complex. Calibration standards (P1 to P5) are prepared as follows: different volumes of a 102.2 mgL1 phosphate solution are added to several 100 mL volumetric 1. The content of phosphate in a flasks. Then, 10 mL of diluted HCI, 10 mL of 1% molybdate ion solution, and 10 mL of 0.75% oxalic acid solution are added to every flask, and finally water is added up to the volumetric mark. Samples are prepared in the same way, adding different sample volumes instead of phosphate standard solution. Absorbance of all solutions is measured at 360 nm, and the following data are obtained: Added volume Absorbance at 360 nm P1 2a 0.109 P2 5a 0.249 P3 10a 0.501 P4 15a 0.748 Р5 20a 1.008 Blank 0.000 Sample 20b 0.624 (a) mL of 102.2 mg L' phosphate standard solution. (b) mL of sample Calculate the concentration of phosphate in the water sample expressed in mg…
USE THE DATA BELOW ON MOLAR ABSORPTIVITIES FOR THE TWO PRINCIPAL SPECIES IN A SOLUTION OF POTASSIUM DICHROMATE. Four solutions were prepared by dissolving 3.50 x 10^-4 , 3.00 x 10^-4, 2.50 x 10^-4, and 2.00 x 10^-4 moles of K2Cr2O7 in water and diluting to 1.0 L with a pH of 5.55 buffer. Derive theoretical absorbance values using a 1.00-cm cells for each solution and plot the data for (a) 345 nm (b) 370 nm, and (c) 400 nm.
A second calibration standard solution of an iron(III) salicylate complex was prepared in two steps. First, 10.0 mL of a 0.100 M stock solution was added to 90.0 mL of solvent to make 100.0 mL of the first calibration standard solution and, secondly, 80 mL of that first calibration solution plus 20.0 mL of solvent were mixed to make the second calibration standard. What is the concentration of the second calibration standard solution?
Potentiometric titration A potentiometric titration of a 0.278 g sample of FeSO.7H,0 salt, in acidic medium, with a 0.011 M solution of potassium dichromate (K.Cr.0-) was conducted. The potential is measured with respect to a calomel electrode (Eadnd = 246 mV). The following graph represents the measured potential with respect to the volume of added dichromate. 700- 675 650 Calculate E for the half- 625 reaction: Fe" + e Fe (Show your work using Nemst equation). 600 > 575 550 Hint: Use the graph, to determine, appraximately, the equivalence point and mid-point of the titration 525 500 475 450 425 400 6 8 10 12 14 16 18 20 22 V (K>Cry0,) in ml. (Au) 3
In redox titrations, an auxiliary agent can be used to unify the oxidation states of analyte. The excess reagents should be removed to prevent interference. Which of the following is Not correct regarding excess auxiliary agents? O For peroxydisulfate, the excess reagent is removed by boiling the solution to convert it to sulfate ions. O Silver sticks, coils or pwder are removed by taking them or filtering them out of solution. O Solid sodium bismuthate is removed by emoved by boiling the solution. O Hydrogen peroxide is removed by boiling to convert its excess into water and oxygen gas.
A calibration curve for the colorimetric determination of phosphorous in urine is prepared by reacting standard solutions of phosphate with molybdenum(VI) and reducing phosphomolybdic acid complex to produce the characteristic blue color. The absorbance (A) is plotted against the concentration of phosphorous. From the following data, determine the linear least-squares straight line and calculate the concentration of phosphorous in the urine sample. Phosphorous (ppm) 1.00 2.00 3.00 4.00 Unknown urine sample Fluorescence intensity 0.205 0.410 0.615 0.820 0.625
Explain why ionic attractions are weaker in media with high dielectric constants, e. g.,water and aqueous buffers.
Explain passivation by drawing hypothetical polarization curve and which parameters have effects on the passivity of a metal and the corrosivity of an electrolyte. Show reaction steps for a nickel oxide passive film
An experiment was carried out to determine desorption efficiency. I placed25 µL of hydrochloric acid solution (4350 ppm) onto 100 mg of silica gel.The next day I desorbed the HCl with 10 mL of standard eluent. 5 mL ofthis solution was found to contain 42 µg of hydrogen chloride. What is thedesorption efficiency?
The mass percent of Fe in an unknown salt sample was determined using both volumetric and gra vimetric titration. Ten determinations using both methods were performed. Volumetric(% of Fe): 24.22, 23.86, 24.07, 24.49, 24.69, 23.71, 24.28, 24.11, 24.26, 24.10 Gravimetric (% of Fe): 24.35, 24.26, 24.10,24.19, 24.18, 24.32, 24.11, 24.33, 24.17, 24.12 a. Do the two methods give similar standard deviations? b. Do the two methods give similar results for the mass percent of Fe at the 95% confidence level?
Traces of aniline can be determined by reaction with an excess of electrolytically generated Br2: C6H5NH2 + 3Br2 =====è C6H2Br3NH2 + 3H+ + 3Br- The polarity of the working electrode is then reversed, and the excess bromine is determined by a coulometric titration involving the generation of Cu(I): Br2 + 2Cu+ ===è 2Br- + 2Cu2+ Suitbale quantities of KBr and copper (II) sulfate were added to a 25.0 ml sample containing aniline (C6H5NH2). Calculate the mass in micrograms of C6H5NH2 in the sample from the accompanying data. Working electrode Functioning as Generation Time (min) with a constant current of 1.00 mA Anode 3.76 cathode 0.270
How is lake test for aluminium ion based upon adsorption?