Name three common uses of High Performance Liquid Chromatography (HPLC) in the laboratory.

Q: The method of standard additions was used to determine nitrite in a soil sample. A 1.00-mL portions…

A: The linear relationship between the concentration of absorbing species and the absorbance is known…

Q: Determine the molar concentration of food dye in the sample

A: We are given absorbance of analyzed sample to be 0.349 we have to find molar concentration

Q: Which technique separates components of amixture with different boiling points? A. filtration…

A: Distillation is the process which is used to carry separation of a mixture of the component with…

Q: Gas chromatography would NOT be appropriate to use for a sample that is decomposed by heat a mixture…

A:

Q: solution stock Concentration (mL) (mL) (HM) 0.100 100.00 Q2a 0.200 100.00 0.400 100.00 4 0.800…

A: Dilution refers to decreasing the concentration of solute in a solution. This is done by adding…

Q: What is sampling in analytical chemistry?

A: Analytical chemistry is a branch of chemistry in which we analyze the sample by different…

Q: What is the most accurate volume that the graduations can measure in this instrument? Pinch and zoom…

A: Measuring cylinder (also known as graduated cylinder) is used to quantify a certain volume of liquid…

Q: According to the chromatography the value of the distance traveled by the solvent is:

A: We need to calculate the distance traveled by solvent.

Q: Convert 9200 dpm per in^2 to Bq/100cm^2

A: given 9200 dpm/inch2

Q: chromatography

A: chromatography is a process in which the mixture is separated.  In this process we dissolve the…

Q: separation

A: According to the question, we need to determine how to purify the black copper for the wire using…

Q: 25.5ML 6. Estimated volume of crucible 36.05ML Measured volume of crucible Percent error of estimate…

A:

Q: Shown is a thin-layer chromatography (TLC) plate. In this case, a student decided not to line up the…

A: The R f factor is called retention factor. The expression to find out R f factor in thin layer…

Q: Explain the difference between random sampling and haphazard sampling as used in Analytical…

A: To find: The difference between random sampling and Haphazard sampling

Q: Group

A: Dear student I have given answer to your question in the image format.

Q: A method for the determination of the corticosteroid methylprednisolone acetate in solutions…

A: given:   n = Zα22S2E2   where α2= (1-confidence level )2 =0.025            Zα2 = 1.9599…

Q: Identify the following compounds from its molecular formula and its IR and 1H NMR spectra:

A: Given,

Q: item#1c] *refer to the photo below*

A: To find  the standard Gibbs free energy change of the reaction in kJ at 298 K and have to tell the…

Q: Select which of the following is not a feature of carrier gas used in gas chromatography? A. It must…

A:

Q: 1. Make sure you know how to obtain the highlighted results from the given information. Molar…

A: Hi, Since you have asked multiple questions (two tables), we will solve the first question for you.…

Q: T0.03g 1. Mass of empty small evaporating dish (nonalpe noin2.24g 2. Mass of small evaporating dish…

A: The mass of empty small evaporating dish is = 70.03 g The mass of small evaporating dish + mixture…

Q: Julie has been asked to measure the concentration of a sample solution using a spectrophotometer.…

A: On dilution, the no of moles does not change. As no of moles = Molarity × Volume Thus, (Molarity ×…

Q: tempeRATUR E PERATURE

A: The relation between Standard Enthalpy and Standard Gibbs free energy is

Q: Concentration 3006 2901 2892 Absorbance std 0.540 0.540 0.540 Absorbance sx 0.555 0.526 0.540 100.3…

A: Here for calculation of % potency one has to put all required data on that formula and compute .

Q: Volumetric Target concentration Mass of mixture Amount of ammonia flask added required 0.43 gl)…

A:

Q: ds Iitensive or extensive. Intensive Extensive Answer Bank temperature color volume boiling point…

A: The physical properties which does not depend on the amount of matter are termed as intensive…

Q: A student performed chromatography on a mixture of benzoic acid (C₂H5CO₂H), acetophenone…

A:

Q: Can paper chromatographt be used to separate and identify very volatile substances? Explain.

A: Paper chromatography is a technique used to separate components based on the differential migration…

Q: 100 a. 43 80 60 40 20 86 58 71 20 40 60 80 100 120 100 b. 57 80 60 29 40 86 20 20 40 60 80 100 120…

A: Mass spectra is used to measure the mass to charge ratio of molecules in a sample.

Q: Define , describe, or illustrate the following: a. HETP b. Capacity factor c.. Selectivity…

A: The HETP is defined as a column length adequate to bring the solute in the mobile phase emitted from…

Q: Value Number of sig figs 301.50 0.0500 2650 7.560 x 1023

A: To determine the number of significant digits .

Q: A method of analysis yields masses of gold that are low by 0.4 mg. Calculate the percent relative…

A:

Q: etention volumes are 6ml and 7mL, respectively. The dead volume of the column used is 1n

A:

Q: 2. Which of the following data sets is more precise? Which is more accurate? How do you kr Data Set…

A: Error is  determined by the difference between the  measured value and true  value.

Q: Construct a calibration curve: (a) Subtract the blank value (9.1) from all other values (this means…

A: (a)       Slope = 874.05 ± 10.62       Intercept = - 29.61 ± 9.65 Calculation table vol %…

Q: Given below is a diagram of separation of two components of a mixture in a chromatographic column.…

A:

Q: Julie has been asked to measure the concentration of a sample solution using a spectrophotometer.…

A: Final concentration =5.5X10-5m Final volume =250 ml                              =250X 10-3 l{since…

Q: Why high performance liquid chromatography is an important  technique in the fields of chemistry…

A: MAIN USE OF HIGH PERFORMANCE LIQUID CHROMATOGRAPHY ARE IDENTIFYING  ,QUANTITATIVELY AND PURIFYING…

Q: 5. What would be the effect of the following errors in chromatographic work? a. The solvent level in…

A:

Q: A method for the determination of the corticosteroid methylprednisolone acetate in solutions…

A: Given: mean value = 3.7 mg mL-1 standard deviation s = 0.3 mg mL-1  formula to find samples n = Zα2…

Q: test tube mL Nickel standard ML 0.6 m H2SO4 blank 10.0 mL 2.0 mL 8.0 mL 2 4.0mL l6.0 mL 3 l6.0 mL…

A:

Q: 200 180 160 140 120 100 40 20 PPM | (+) drta 3 Peak ára 2 penk 2 10 PPM

A: 13C-NMR provides the information about the number and types of carbons of unknown. 1H-NMR provides…

Q: 2. The goal behind suction filtration is to remove soluble impurities that are on the surface of the…

A: Suction filtration is generally used in chemistry labs to remove impurities from liquid samples. It…

Q: 18. Convert 50 ppm to g/L

A: Since you have posted multiple questions, we will solve only one question for you. If you want…

Q: 1000 mL of 0.45% NaCl IV for 3 hours Drop factor: 20 gtt/mL Flow rate: ________ gtt/min

A:

Q: 9 9 A. Cg Hg 03 00 ppm -N 200 180 160 140 120 100 com -9 O

A:

Q: What is the S/N ratio (average / std deviation)

A: Standared deviation ic calculated by using following formula,SD=∑∣x-μ ∣2Nwhere,X=value in the data…

Q: Mass of CaCO3= 0.3185 g Trial VCaCO3 25.00 mL 1 2 25.00 mL 25.00 mL alm 3 Vi (mL) 0.00 0.10 0.50 V…

A: Given that -  Mass of calcium carbonate, CaCO3 = 0.3185 g  Volume of CaCO3 used each time = 25.0 mL…

Q: b) Name four types of gas chromatograph (GC) column.

A:

Q: attempt, she realizes that, to make the measurement, she must first dilute the sample solution.…

A: Solution- Final concentration =5.5X10-5m Final volume =250 ml =250X 10-3 l{since ml =10-3l}…