This graph shows an absorbance vs concentration curve for Co2*(aq) solution.Sample Standard Curve1.201.00800.600a 400e 2002002 0080 100Co2. conc. (M).020040OGO120 140160• Slope - 6.414 Intercept -7.799991E 03 Con. Coef - 9791Assuming that Beer's Law holds, A = Elc, and the cuvette was a standard 1-cm optical path, what is the molar absorptivity coefficient for the Co2* solution?a. 3.58 x 103 cm"o b.3.58 x 103 cm M-1OC 7.80 x 103 cm1M-1O d. 6,414 cm1M1

The absorbance v/s concentration curve given is,

This graph shows an absorbance vs concentration curve for Co2"(aq) solution. Sample Standard Curve 1.20 1.00 B00 600 a 400 e 200 02 0 020 040 OGO o00 100 120 140 160 Co2. conc. (M) Slope - 6.414 Intercept = -7.799991E 00 Con. Coet - 9791 Assuming that Beer's Law holds, A = elc, and the cuvette was a standard 1-cm optical path, what is the molar absorptivity coefficient for the Co2* solution? O a. 3.58 x 103 cm1M1 b.3.58 x 103 cm1M-1 O 7,80 x 103 cm 1m-1 O d. 6,414 cm1Mr1

This graph shows an absorbance vs concentration curve for Co2"(aq) solution. Sample Standard Curve 1.20 1.00 B00 600 a 400 e 200 02 0 020 040 OGO o00 100 120 140 160 Co2. conc. (M) Slope - 6.414 Intercept = -7.799991E 00 Con. Coet - 9791 Assuming that Beer's Law holds, A = elc, and the cuvette was a standard 1-cm optical path, what is the molar absorptivity coefficient for the Co2* solution? O a. 3.58 x 103 cm1M1 b.3.58 x 103 cm1M-1 O 7,80 x 103 cm 1m-1 O d. 6,414 cm1Mr1

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter16: Applications Of Neutralization Titrations

Section: Chapter Questions

Problem 16.18QAP

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Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray contrast agent that aids with the radiologic imaging of the anatomy. One such contrast agent is sodium diatrizoate, a nonvolatile water-soluble compound. A 0.378-m solution is prepared by dissolving 38.4 g sodium diatrizoate (NaDTZ) in.l.60 102 mL water at 3 1.2C (the density of water at 31.2C is 0.995 g/cm3). What is the molar mass of sodium diatrizoate? What is the vapor pressure of this solution if the vapor pressure of pure water at 31.2C is 34.1 torr?
Please create a caption for this table. Solution NaCl Conc. (%) Osmolality (mOsm) % transmittance Absorbance % hemolysis % crenation C distilled 0 0 0.001029 4.987584625 100 0.03354 1 0.177179111 54.61 0.001551 4.809388202 96.42720001 0.05837 2 0.297126222 91.58 0.01012 3.994819487 80.09527231 0.08444 3 0.442542222 136.4 3.849 1.414652089 28.3634704 0.134 4 0.590164444 181.9 64.8 0.188424994 3.777880643 0.2125 5 0.74752 230.4 95.64 0.019360433 0.388172513 0.3368 6 0.89644 276.3 99.56 0.001915112 0.038397585 0.5336 7 1.095648889 337.7 99.98 8.68676E-05 0.001741676 0.9834 8 1.336711111 412 100 0 0 2.1 9 1.755568889 541.1 100 0 0 7.9 10 2.674395556 824.3 100 0 0 57.83 11 4.490211111 1384 100 0 0 99.72
Table 2: Absorbance Values of Standards and Unknowns. Sample Blank Standard Solution 1 Standard Solution 2 Standard Solution 3 Standard Solution 4 Standard Solution 5 Water Sample 1 Water Sample 2 Phosphate Concentration (in ppm) Y17 0 ppm 0.02 ppm 0.04 ppm 0.08 ppm 0.16 ppm 0.32 ppm Freeman Lake 0.001 0.325 0.292 0.413 0.315 0.039 0.054 0.049 Absorbance at 2= 690 nm Calculations: 1. Construct a phosphate standard curve in Excel by plotting concentration (in ppm) on your x-axis and Absorbance (unitless) on your y-axis for your known solutions. Label the axes on the graph and provide the curve with a title. Use a linear trendline to generate a best fit line to your data. Label the graph with the equation and the R" value. Insert your labeled graph in the space below. X
Hw.22. A 1 mL aliquot of standard KMnO4 solution A (4.0 ppm) gets added to 10 mL of unknown solution B. This 11 mL solution then has an absorbance of 0.312. The absorbance of unknown KMnO4 solution B is 0.326. Calculate the concentration of solution B in ppm. Use simultaneous equations.
OWLV2 | Online teaching and X 0mySigTau xb Login | bartleby X M COMM.1113: FUND OF ORA X G what food has c - Google Se X + om/ilrm/takeAssignment/takeCovalentActivity.do?locator=assignment-take D [References] hotogray lenses incorporate small amounts of silver chloride in the glass of the lens. When light hits the AgCl particles, the following reaction occurs: hv AgCl Ag + Cl The silver metal that is formed causes the lenses to darken. The enthalpy change for this reaction is 2.90 × 10² kJ/mol. Assuming all this energy must be supplied by light, what is the maximum vavelength of light that can cause this reaction? Wavelength %3D nm Submit Answer Try Another Version 3 item attempts remaining Previous Next
Sample IdentificationCodeConcentration of M%TA=2-log(%T)Q50004.00 x 10-417.90.75Q50013.20 x 10-425.00.6Q50022.40 x 10-435.70.46Q50031.60 x 10-450.20.3Q50048.000 x 10-570.80.15SampleIdentificationCode%TA=2-log(%T)AMQ0210150143.70.359518560.360.000192Q0210150244.10.355561410.360.00018Q0210150343.80.358525890.360.00017Q0210150444.10.355561410.360.00018Q0210150543.80.358525890.360.00017What was their percent error?43%Does Batch 021015 meet legal requirements?No, because it is not between 2.85 * 10(4) and 3.15 * 10(4)Well #DropsBluedye1234567891012345678910Drops 9Distilled water876543210Concne 0.26tration0.52Test Tube #0.781.041.3Solutions3Concentration (M)2.082.32.6Concentration (ppm)1:1 dilution11.82Starting Dilution21.562:1 dilution0A.Zero standard0Was your calibration curve as linear as you expected?B.Did you experience any â€œdriftâ€ of the resistance readings?C.What is the equation of your best-fit line?D.What commercial drink did you analyze?E.Assuming…
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An analysis of city drinking water for total hardness was done by two students in the laboratory and produced the following results (in ppm CaCO3): Student A: 228.3, 226.4, 226.9, 227.1, and 228.6. Student B: 229.5, 226.1, 230.7, 223.8, and 227.5 what is the coefficient variation?
X A ALEKS-Allie Fleming - Knowled X + eks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IQUHIQg6bJxmeSyVpHOEB1plef9xyC5Ca9Qlgg70JQ0BkW_S727IDRdmdWICDt8DxedZZpvVEqH-ZDXitxxGhUuDfQ-ZKhas?1 # * 3 E D E Module Knowledge Check Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium bromide (NaBr) and liquid water (H₂O). What is the theoretical yield of water formed from the reaction of 2.4 g of hydrobromic acid and 0.48 g of sodium hydroxide? Round your answer to 2 significant figures. 08 I Don't Know Submit LIZ $ 4 R F 15 % 5 ▬▬ M 16 T G 0.9 6 Q Search X 17 4+ Y H & 7 Ś fa 144 U * fo 8 DII Question 5 - hp fo ( DDI 9 Al J K fm O () © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility L 112, insert P { prt sc [ با = () ← } 1 Allie V J BEEN delete olo Ar backspace h en