Short Answer 1a.Question shown in picture. Short answer/problems. Show your work, use correct significant figures/units and use completesentences (where appropriate).1.Given the data in Figure 2, answer the following questions. You may refer to the color wheel andthe color/wavelength chart on the cover sheet.n ValuesConcentration0.70-Relationship Between Concentration and Absorbtion(c.u./L)Absorbance5.0000.2890.65-10.0000.46415.0000.63820.0000.7090.60 -0.55-Linearmc+bm = 0.0286b = 0.1670.50 -r= 0.9850.45-0.40 -523 nm0.35-0.30 -UnknownConcentrationConcentration0.25-(c.u./L)Absorbance10131518200.444Concentration(c.u./L)Figure 2: Determination of an Unknonn Solution ComcentrationWhat is the concentration of the unknown solution in c.u./L (color units per liter)а.a. 9.68b. 15.52с. 9.01d. 12.87Absorbance

A multiple choice question about determining concentration unknown solution.

Given the data in Figure 2, answer the following questions. You may refer to the color wheel and the color/wavelength chart on the cover sheet. n Values Concentration LH Relationship Between Concentration and Absorbtion 0.70- (c.u./L) Absorbance 5.000 0.289 0.65- 10.000 0.464 15.000 0.638 20.000 0.709 0.60- 0.55- Linear mc+b m =0.0286 0.50- b =0.167 r=0 985 0.45- 0.40 - 323 nm 0.35- 0.30- Unknown Concentration Concentration 0.25- (c.u./L) Absorbance 10 13 15 18 20 0.444 Concentration (c.u./L) Figure 2: Determination of an Unknown Solution Concentration What is the concentration of the unknown solution in c.u./L (color units per liter) а. a. 9.68 b. 15.52 c. 9.01 d. 12.87 Absorbance

Given the data in Figure 2, answer the following questions. You may refer to the color wheel and the color/wavelength chart on the cover sheet. n Values Concentration LH Relationship Between Concentration and Absorbtion 0.70- (c.u./L) Absorbance 5.000 0.289 0.65- 10.000 0.464 15.000 0.638 20.000 0.709 0.60- 0.55- Linear mc+b m =0.0286 0.50- b =0.167 r=0 985 0.45- 0.40 - 323 nm 0.35- 0.30- Unknown Concentration Concentration 0.25- (c.u./L) Absorbance 10 13 15 18 20 0.444 Concentration (c.u./L) Figure 2: Determination of an Unknown Solution Concentration What is the concentration of the unknown solution in c.u./L (color units per liter) а. a. 9.68 b. 15.52 c. 9.01 d. 12.87 Absorbance

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section: Chapter Questions

Problem 77PS

See similar textbooks

Similar questions

The internal standard method compensates for errors that affect both the analyte and the reference. True False
Does the amount of radiation (cpm) increase or decrease as the distance between the sorce and the sensor increases? Explain
1.. What is the common factor between MS, SEM, and XPS? (Hint: It makes those techniques a good deal more expensive.)
The answer with a BCA table for both parts would be great, thank in advance for the help. btw, this is a pre test that isn’t graded
Retention time is the time taken for the mobile phase to reach the detector. True False
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
Match the given parts with the correct function integrator detector injection port column solvent reservoir A. measures absorbance data B. introduce micro sample into the instrument C. holds as the stationary phase D. holds as the mobile phase E. processes data into the display unit
How does an ESI source work (from injection to ions beam formation)?
It is acceptable to draw the TLC spotting line with a pen as long as it is marked very lightly. True False
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) 0.388 0.389 0.388 What is the concentration of Cu in analyzed solution (mg/L) for each trial?
Maria was tasked to determine the concentration of a Fe2(SO4)3 solution. She prepared 5 different standards of Fe2(SO4)3 using the table below as her guide. She ran the standards and the unknown solution through UV-VIS spectroscopy and recorded the absorbances of each solution. HINT: use the dilution equation to determine the concentration of Fe2(SO4)3 in each test tube before preparing the standard curve. NOTE: No need to force the line to pass through zero. Just graph the data as is. What is the slope of the line of the standard curve from the given data? What is the concentration of the unknown solution?