Separation of Peaks Below are two chromatograms after LC separation. Which chromatogram is better to proceed for MS analysis? What mobile phase condition/composition (LC separation) was used?

Q: Consider the given reaction. A(aq) + B(s) C(aq) K = 9.40 Suppose 9.52 mol A reacts with excess B in…

A:

Q: Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog: 4Fe(s)…

A:

Q: 5 Problem 5: Calculate the decrease in temperature when 6 L of a gas at 20°C is compressed to 4L.…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.04 kg sample…

A:

Q: CH4 + 202 → CO₂ + 2H₂O AH-890kJ/mol How much heat is released when 2.7 g of methane gas is burned in…

A: Here we are required to find heat released when 2.7 gm of methane is burnt

Q: Classify the compounds as either more soluble in water or more soluble in nonpolar organic solvent.…

A:

Q: 0.8 C 0₂ Reactants atom ↑ 8 CO₂ Products

A: C + O2 ----> CO2 in the above equation 1. we can easily find carbon and oxygen atoms.

Q: Scholarship Ap X Report - Googl X NGLSync Portal X OWLv2 | Online X +…

A:

Q: The pH of an aqueous solution of 0.569 M quinoline (a weak base with the formula CoH7N) is Submit…

A:

Q: 9 Challenge, Problem 9: The pressure of 8.4 L of nitrogen gas in a flexible container is decreased…

A:

Q: Table 2   Absorbance vs CoCl2 concentration   Test Tube Number Cobalt Chloride Concentration…

A:

Q: 3. For the following system at equilibrium N2(g) + 3H₂(g) 2 NH3(g) K = 626 at 200°C the equilibrium…

A:

Q: A chemistry graduate student is studying the rate of this reaction: 2SO3 (g) → 2SO₂ (g) + 0₂ (8) He…

A: The rate law expression shows the relation between the rate of the reaction with that of…

Q: Which rock and roll star has the same name as this hexapeptide in single letter code? NH₂ SH NH₂ NH₂

A:

Q: The solubility product of Fe(OH)2 is 1.4x10-5. What should be the pH of the solution in order to…

A:

Q: 7.53 Draw the products of each SN2 reaction and indicate the stereochemistry where appropriate. (J +…

A:

Q: Enumerate the reactions with conjugated systems: name, reactants, conditions and products.

A:

Q: 4. Determine which element has the following set of quantum numbers for its outermost electron, show…

A:

Q: 2,4,6-Trinitrophenol is also called picric acid. Why is this substance called an acid? How is the…

A: The substance which can give H+ ion is known as acid.

Q: An electrolytic cell is constructed using platinum electrodes in an aqueous NaHCO3 solution. The…

A:

Q: Assume that all solutions are at 25 degrees C. An electrolytic cell is constructed using platinum…

A:

Q: Identify the region of the electromagnetic spectrum where the wavelength measurement of 7.5 nm can…

A: Identify the reason of 7.5 nm wavelength ?

Q: A -1 B +2 C +4 E 4

A:

Q: A3- Draw all the possible geometrical isomers for the complex [Cr(en)2(CN)2]. And show how could you…

A: Here we are required to find the geometrical isomer for the given complex.

Q: For the reaction 2 AB₂(g) + B₂ (g) ⇒ 2 AB3(g) = : 0.225 M, and [AB₂] = 0.495 M. the equilibrium…

A: Equilibrium constant can be defined as the ratio of concentration of products to concentration of…

Q: A 290.3-g sample of ground water is analyzed for calcium. The Ca2+ in the sample is first…

A:

Q: A concentration cell is constructed of silver electrodes at 25 °C, and the half cells contain…

A: The concentration cell produces electricity due to the migration of matter from the higher…

Q: An organic acid (HA) in a sample that weighs 0.3996 grams was incorporated in water to form a…

A:

Q: If the two drops are mixed, draw a particle diagram to show what would be observed on a particle…

A: Addition of any ionic compound in water results into an aqueous solution

Q: The Law of Conservation of Energy states that: o Heat lost by one object must be Select an answer by…

A: Energy can be defined as the ability to do work.Energy can be of different types. Energy may be…

Q: 2p 2s 1s 30 17g 30% 1u 201 20 101 10g Q2/ Complete the following diagram for the carbon molecule…

A:

Q: An ion-selective electrode for fluoride was investigated. The following results were obtained. Plot…

A:

Q: Br3. Br

A:

Q: At a certain temperature, K = 4.37 x10-4 for the following reaction: 2BrCl Br₂ + Cl₂ If the…

A:

Q: The product P in the following chemical reaction will be CI 1. NaN 3 P 2. Heat 3. H₂O

A: The answer is attached below-

Q: A new strontium iron(III) oxide is calculated to have narrow partially-filled conduction band but is…

A: Between the Fermi level and the conduction band edge, the novel strontium iron(III) oxide (SrFeO3)…

Q: QUESTION 6. Calculate the standard entropy change for the following process at 298 K: 2 P(g) + 5…

A:

Q: Given the equation below: How many grams of aluminum oxide will be produced by the decomposition of…

A: Dear student ,   since you have posted multiple questions we will allow to solve only first question…

Q: 2.4 8 (a) Define in words the following: (1) Ka (ii) p.Ka I (b) Calculate the pH of 0.0005 mol dm³…

A:

Q: Identify whether each species functions as a Brønsted-Lowry acid or a Brønsted- Lowry base in this…

A: Bronsted Lowry Theory : In chemistry, the Bronsted-Lowry theory is an acid-base theory, proposed…

Q: a) Considering compounds 2a through 21, identify: ONE PAIR of geometric isom- TWO PAIRS of…

A:

Q: ** Directions Match the items in column A with those in column B. Write the letter of each correct…

A:

Q: une 1. Draw the structure of a-D-fructose and ß-D-galactose.

A:

Q: 4) Predict a decrease highest to the lowest in the enthalpy of vaporization for the following…

A:

Q: Given the equilibrium reactions below and their equilibrium constants. H3O¹(aq) + A¯ (aq) ↔ HA(aq) +…

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration…

Q: Give the structure that corresponds to the following molecular formula and ¹H NMR spectrum::…

A: Secondary hydrogens are represented by the chemical shift (1.93); tertiary hydrogen carbon connected…

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A:

Q: The following ¹H NMR signals are for three molecules with ether functional groups. All the signals…

A:

Q: A 0.5510 g KIO3 sample was dissolved in distilled water. It was transferred to a 500.0 mL volumetric…

A: Given :  Mass of KIO3 = 0.5510 gm   Volume of flask = 500 ml  Volume of aliquot taken for analysis =…

Q: Silicon having a melting point of 1412°C forms an alloy with aluminum having a melting point of…

A: Please find the below attachments.     Please rate........   Thank you.