allura red report

100 MASS SPECTRUM 80 60 40 20 0.0 10 20 30 40 50 60 m/z NIST Chemistry WebBook (https://webbook.nist.gov/chemistry) 1. What is the M'? 2. What is the m/z of the base peak? 3. Does it contain chlorine? Explain your answer. Rel. Intensity

I need help finding the %Composition for %cychohexane and %toluene. The formula (area of peak/total area) * 100%

Table 1: Chromatography Results Mobile Phase: Distilled Water Solvent front distance (cm): 8 cm   M&M Candy Separated Spot Color Migration Distance (cm) (distance to center of spot from origin) Red M&M Red 7.5 cm             Green M&M Yellow 5.3 cm   Blue 7.7 cm       Blue M&M Blue 7.8 cm             -please help with this part Calculations/Results:             Table 1: Results with Distilled Water M&M Candy Separated Spot Color Rf Value   Red M&M                 Green M&M                 Blue M&M                             Rf = Distance traveled by component in a given time/                       Distance traveled by solvent in same time             Show work with units for one sample calculation.

QUALITATIVE DETECTION OF ORGANIC COMPOUNDS Would you say that all organic compounds give evidence of containing carbon when they are burned or heated?

If the peak width w of both Peak 1 and Peak 2 fro eon 1g is 0.5 minutes, what is the resolution factor between the two peaks? 1.13 Selectivity is Peak 1 (6.0 min, Peak 2 w=0.5 (6.8 min, w=0.5 25 min) min) 20 15 Hold up peak (1.8 min) 10 0. 0. 4. 8. time (minutes) 2. 5. Signal

Using the lab instructions and data table with data, please help me complete part 1 and 2 of my lab worksheet

The ppm concentration of Pb2+ in a blood sample were measured with Spectrophotometry. 5.00 mL of a blood sample were taken and this sample gave a signal of 0.301 a.u.. Another 5.00 mL of a blood sample were mixed with 0.50 mL og 1.75 ppm Pb2+. Then, this mixture was diluted to 25.00 mL and this diluted mixture gave a signal of 0.406 a.u.. What is the ppm concentration of a blood sample?

A solution of phenolphthalein has been analyzed by absorbance spectroscopy. The ɛl for the spectrophotometer was determined to be 7695 M¯1. If the absorbance of the solution is 0.158 what is the phenolphthalein concentration ([Ph2], M)? Your Answer: Answer units

A solution of a dye was analyzed by spectrophotometry, and the following calibration data were collected using a 1 cm cuvette. *graph in attachemnt*   Using the calibration data above for the dye solution, what is the dye concentration in a solution with an absorbance (A) = 0.52 if it was measured in a 1 cm cuvette?   Group of answer choices 3.0 x 10-6 M 6.0 x 104 M 2.0 x 10-6 M Not enough information is provided.

the spectra is of a drug either cannabinoid, opiate, MDMA etc, please explain the spectra and what drug could it be

Just part b!!!

Here is the protocol for a UV-Vis spectrophotometer to detect water and chlorine-carbon. 1.Dissolve the water and chlorine-carbon compounds in a solvent, such as water. 2.Prepare a standard solution of known concentration that is similar to the sample being measured. 3.Calibrate the spectrophotometer using the standard solution. 4.Measure the absorbance of the sample using the spectrophotometer. 5.Calculate the concentration of the compounds in the sample using the calibration curve obtained from the standard solution. How is the spectrophotometer calibrated with standard solutions? When is the blank solution placed in the spectrophotmeter?

Hello, please answer the following attached Chemistry question correctly and fully based upon the attached table. Please answer the "Low and High absorbance" parts. Thank you.

can you explain how I can get 1.596 mg/L of concentration of Fe3+ in dilutes sample and can you also make the calibration curve.

Question 2 Zinc was analysed in acid mine drainage (AMD). The signal obtained from an AAS for the sample was 0.125 absorbance units. 25.00 mL of a 0.15 ppm Zn standard was added to 75.00 mL of the sample. The signal obtained was 0.750. a. The 0.15 M Zn standard of volume 500 mL was prepared from zinc (II) phosphate. Determine the mass of salt required to make the standard. 4.43 x 10 g -4 b. Determine the Zn concentration in the AMD sample. [Zn] = 0.00619 ppm

Determination of ascorbic acid in vitamin C tablets: which analytical approach is better; volumetric or spectrophotometric analysis?

I need help finding the %Composition for %cychohexane and %toluene. The formula (area of peak/total area) * 100%

3  to the kit manual 200uL of plasma was mixed with 2.8 ml of the dilution buffer, mixed well then 200 uL of the dilution mixture was pipetted in 0.9 ml of solution A and 0.9 mL of solution B and measured using a spectrophotometer, the concentration was 30. What is the final concentration of the sample after adjusting the dilution factor

A student performs this and records the following data from the complted chromatogram. the solvent has moved 7.30 cm Component A produces a blue spot that has moved 5.80 cm. Component B produces a pink spot that has moved 2.45 cm. Component C produces a tan spot that has moved 4.10cm. Calculate the Rf values for component.

are my transmittance and absorbance correct on page 1 and on page 2 how do I find the percentage cu in penny ?

cc.1

How is light and energy used in gas chromatography- mass spectrometry (GC-MS)?

Please answer all and post below the answer the source from where you got the answer thank you!

■ True or False: in a TOF analyzer, a fragment of low mass reaches the detector first ▪ In GCMS when we know what analytes we are measuring we use not know what analytes are in the sample we use than scan. ▪ A) Scan; SIM ■ B)SIM; scan • C) SIM; SIM mode. When we do mode. SIM allows greater sensitivity

sub= 18 help

Explain why the dye spots are elongated and not round on your chromatogram.

Question 19 of 27 > Graphs are a common data analysis tool used in all branches of science. The given graph represents how light absorbance at 423 nm varies with concentration of an organic dye. Identify the parts of the graph. Answer Bank y = 0.210x – 0.032 line equation Title Abs423 Dye Conc. (nM) best-fit line 0 i 2 3 4 5 6 7 8 9 10

To determine the amount of copper and the identity of the copper compound in the unknown sample, a 100-mL solution containing 120.8 mg of the sample was initially prepared. Then, 5.00 mL of this solution was pipetted and diluted with deionized water in another 100-mL volumetric flask. The absorbance of this diluted solution was determined three times at the analytical wavelength. The data is in the table below.  Unknown sample Trial 1 Trial 2 Trial 3 Absorbance (AU) 0.388 0.389 0.388 What is the Corrected Absorbance of each trial? How do you get the corrected absorbance?

To determine the amount of copper and the identity of the copper compound in the unknown sample, a 100-mL solution containing 120.8 mg of the sample was initially prepared. Then, 5.00 mL of this solution was pipetted and diluted with deionized water in another 100-mL volumetric flask. The absorbance of this diluted solution was determined three times at the analytical wavelength. The data is in the table below.    Unknown sample Trial 1 Trial 2 Trial 3 Absorbance (AU) 0.378 0.379 0.377 What is the corrected absorbance?

To determine the amount of copper and the identity of the copper compound in the unknown sample, a 100-mL solution containing 120.8 mg of the sample was initially prepared. Then, 5.00 mL of this solution was pipetted and diluted with deionized water in another 100-mL volumetric flask. The absorbance of this diluted solution was determined three times at the analytical wavelength. The data is in the table below.  Unknown sample Trial 1 Trial 2 Trial 3 Absorbance (AU) 0.375 0.374 0.376   What is the concentrartion of Cu in the analyzed solution?