11A.3 An aqueous solution of triphosphate derivative of molar mass 502 g/mole wasprepared by dissolving 17.2 mg in enough water to make 500 cm3 of solution and a samplewas transferred to a cell of length 1.00 cm. The absorbance was measured as 1.011. Calculatethe molar absorption coefficient, and the transmittance, expressed as a percentage, for asolution of twice the concentration. Before solving the problem please also give a brief explanation of the concept or associated equation(s) and variables.

11A.3 An aqueous solution of triphosphate derivative of molar mass 502 g/mole wasprepared by dissolving 17.2 mg in enough water to make 500 cm3 of solution and a samplewas transferred to a cell of length 1.00 cm. The absorbance was measured as 1.011. Calculatethe molar absorption coefficient, and the transmittance, expressed as a percentage, for asolution of twice the concentration. Before solving the problem please also give a brief explanation of the concept or associated equation(s) and variables.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter12: Atomic X-ray Spectrometry

Section: Chapter Questions

Problem 12.1QAP

See similar textbooks

Similar questions

Use the data in Figure 4.8 to estimate the ratio of radiation intensity at 10,000 Å (infrared) to that at 5000 Å (visible) from a blackbody at 5000 K. How will this ratio change with increasing temperature? Explain how this change occurs.
An aqueous solution of a triphosphate derivative of molar mass 502 g mol-1, was prepared by dissolving 17.2 mg in enough water to make 500 cm3 of solution and a sample was transferred to a cell of length 1.00 em. The absorbance was measured as 1.011. Calculate (a) the molar absorption coefficient;(b) the transmittance. expressed as a percentage.for a solution of twice the concentration.
An aqueous solution of triphosphate derivative of molar mass 502 g per mol was prepared by dissolving 17.2 mg in enough water to make 500 cubic cm of solution and a sample was transferred to a cell of length 1 cm. The absorbance was measured as 1.011. Calculate the molar absorbance coefficient and the transmittance for a solution twice the concentration.
5. A 7.25x104 M solution of Potassium cyanide (KCN) has a transmittance of 45.2% when measured in a 2 cm cell at a wavelength of 525 nm. Calculate (a) the absorbance of this solution; (b) the molar absorptivity of KMNO4.
The percentage transmittance of light at 250 nm through a certain aqueous solution is 20.0% at 25°C. The experimental cell length is 1.0 cm, and the concentration of the solution is 5 × 10-4 mol L-1 . Calculate the absorbance.Calculate the molar absorption coefficient.
The percentage disodium fumarate at 250 nm and 25°C is 19.2% for a 5 x 10-4 M solution in a 1-cm cell. (a) Calculate the absorbance and transmittance of an aqueous solution of the molar absorption coefficient percentage transmittance of a 1.75 x 10-5 M solution in (b) What will be the a 10-cm cell? CS Scanned with CamScanner
A solution of KMnO4 has an absorption of 0.560. Calculate the corresponding transmittance. 0.275 0.440 3.63 0.252
A solution shows a transmittance of 20%, when taken in a cell of 2.5 cm thickness. Calculate concentration of this solution of its molar absorption coefficient is 12000 dm³ mol·1 cm!.
4. (Part A When ultraviolet radiation of wavelength 400nm passes through 2.50 mm of a solution of an absorbing substance at a concentration 0.717 mmol/dm?, the transmission is 61.5%. Calculate the molar absorption coefficient of the solute at this wavelength. (Part B A molecular absorption transition has a molar absorption coefficient (extinction coefficient) of 60,220 dm/mole cm. What is the absorption cross-section in cm?/molecule?
Suppose a student is preparing a set of standard solutions for use in a spectrophotometric study. If percent transmittance, %T, were measured in the standard solutions before the color had a chance to fully develop, the measured value would be compared with solutions that have allowed the color to fully develop.
An analysis of Zn2+ in food sample by atomic absorption spectroscopy gave a calibration curve of A = 456.8 CZn + 1.234 where A is the absorbance. The concentration of Zn2+ (CZn) is expressed in molarity. If a measurement of the blank gave a signal of 1.234 ± 0.050 (mean ± S.D. ). What was the limit of detection for Zn2+ in molarity?
7 of 10 > Atomic absorption spectroscopy was used to determine the amount of aluminum in a sample of sunscreen. A blank solution was measured seven times to determine the detection and quantitation limits of the spectrometer. The blank readings were: 0.0073, 0.0082, 0.0110, 0.0101, 0.0102, 0.0098, and 0.0090 AU. Determine the signal at the detection limit and the signal at the limit of quantitation for this method. signal detection limit: signal limit of quantitation: hulu étv 14