Homework Answers
Therefore,
[X] = 2.96x10-5 M and [Y] = 9.64x10-5 M.
Add Answer to:
A solution containing a mixture of the compounds X and Y had an absorbance of 0.885...
A solution containing a mixture of the compounds X and Y had an absorbance of 0.906...
A solution containing a mixture of the compounds X and Y had an absorbance of 0.906 at 443 nm and an absorbance of 0.778 at 520 nm when measured with a 1.00 cm cell. The molar absorptivities (ε) of X and Y at each wavelength are shown in the table below. wavelength Molar Absorptivity (E M^-1cm^-1) Lambda,nm X Y 443 1.600x10^4 3775 520 3893 6264 What are the Concentration of X and Y. Thank you!!
A solution containing a mixture of the compounds X and Y had an absorbance of 0.729...
A solution containing a mixture of the compounds X and Y had an absorbance of 0.729 at 443 nm and an absorbance of 0.626 at 520 nm when measured with a 1.00 cm cell. The molar absorptivities (elementof) of X and Y at each wavelength are shown in the table below. What are the concentrations of X and Y in this mixture?
Please show work! A solution containing a mixture of the compounds X and Y had an absorbance of 1.06 at 443 nm and...
Please show work!
A solution containing a mixture of the compounds X and Y had an absorbance of 1.06 at 443 nm and an absorbance of 0.909 at 520 nm when measured with a 1.00 cm cell. The molar absorptivities (C) of X and Y at each wavelength are shown in the table. Wavelength (2. nm) Molar Absorptivity (M 'cm ) 3507 443 520 14860 3616 5818 What are the concentrations of X and Y in this mixture? Transmittance (%)...
Molar absorptivities of compounds X and Y were measured with pure samples of each: E (M'cm')...
Molar absorptivities of compounds X and Y were measured with pure samples of each: E (M'cm') 2 (nm) х Y a = 272 8(X) = 16 440 (Y) = 3 870 22 = 327 E(X) = 3 990 (Y) - 6420 A mixture of X and Y in a 1.000-cm cell had an absorbance of A1 = 0.957 at 272 nm and A2 = 0.559 at 327 nm. Find the concentration of X in the mixture. al answer:
An aqueous solution contains two absorbing species, X and Y. When a solution of this mixture...
An aqueous solution contains two
absorbing species, X and Y. When a solution of this mixture is put
into a 5.000 cm cell, the total absorbance of a mixture of X and Y
at 300 nm is 0.372, while at 250 nm it is 0.478. The individual
molar absorptivities of X and Y are as listed below. What are the
individual concentrations of X and Y in this mixture?
250 nm
300 nm
eX
4.05 x 104 M-1 cm-1
3.22...
An unknown solution containing a mixture of two compounds is being analyzed by UV/visible spectrometry in...
An unknown solution containing a mixture of two compounds is being analyzed by UV/visible spectrometry in order to determine the amounts of compounds A and B in the sample. Both compounds absorb to some extent at 525 and 630 nm. The calibration curve data obtained during the experiment were analyzed using linear regression analysis. The linear equations for each compound at the various wavelengths are provided in the table below. Results of Linear Regression Analysis Pathlength (cm) 525 nm 630...
Two analytes, X and Y, have overlapping absorbance spectra for 200 nm <^ < 800 nm....
Two analytes, X and Y, have overlapping absorbance spectra for 200 nm <^ < 800 nm. None the less, determine the concentration of each analyte in an unknown mixture, using the information from absorbance measurements at two a’s. For calibration, individual standards of X and Y were analyzed at a concentration of 2.0 x 10-4M. A 1.0 cm pathlength cell was used. The following data were obtained: Sample Absorbance at 22 Absorbance at 2#1 350 nm 650 nm Unknown Mixture...
I need help with 5 & 7 please (a) 15.8% (d) 23.8% (b) 0.492 (e) 0.085...
I need help with 5 & 7 please
(a) 15.8% (d) 23.8% (b) 0.492 (e) 0.085 (c) 39.4% (f) 5.38% *13-3 Calculate the percent transmittance of solutions having half the abse solutions in Problem 13-1. f the absorbance of the cent transmittance of *13-4 Calculate the absorbance of solutions having twice the percent transmiti those in Problem 13-2. *13-5 A solution containing 6.23 ppm KMnO, had a transmittance of 0.195 in a 10 cell at 520 nm. Calculate the molar...
Question 8 Status: Tries remaining: 21 Points possible: 1.00 Suppose you measure the absorbance of a...
Question 8 Status: Tries remaining: 21 Points possible: 1.00 Suppose you measure the absorbance of a yellow dye solution in a 1.00 cm cuvette. cm what is The absorbance of the solution at 427 nm is 0.46. If the molar absorptivity of yellow dye at 427 nm is 27400 M the concentration of the solution? Answer: Question 9 Status: Tries remaining: 2 Points possible: 1.00 If you plot the absorbance measurements of solutions vs. their concentrations, what is the slope...
Ligand X forms a complex with both cobalt and copper, each of which has a maximum...
Ligand X forms a complex with both cobalt and copper, each of which has a maximum absorbance at 510 nm and 645 nm, respectively. A 0.241 g sample containing cobalt and copper was dissolved and diluted to a volume of 100.0 mL. A solution containing ligand X was added to a 50.0 mL aliquot of the sample solution and diluted to a final volume of 100.0 mL. The measured absorbance of the unknown solution was 0.447 at 510 nm and...
A solution containing a mixture of the compounds X and Y had an absorbance of 0.729 at 443 nm and an absorbance of 0.626 at 520 nm when measured with a 1.00 cm cell. The molar absorptivities (elementof) of X and Y at each wavelength are shown in the table below. What are the concentrations of X and Y in this mixture?
Please show work!
A solution containing a mixture of the compounds X and Y had an absorbance of 1.06 at 443 nm and an absorbance of 0.909 at 520 nm when measured with a 1.00 cm cell. The molar absorptivities (C) of X and Y at each wavelength are shown in the table. Wavelength (2. nm) Molar Absorptivity (M 'cm ) 3507 443 520 14860 3616 5818 What are the concentrations of X and Y in this mixture? Transmittance (%)...
Molar absorptivities of compounds X and Y were measured with pure samples of each: E (M'cm') 2 (nm) х Y a = 272 8(X) = 16 440 (Y) = 3 870 22 = 327 E(X) = 3 990 (Y) - 6420 A mixture of X and Y in a 1.000-cm cell had an absorbance of A1 = 0.957 at 272 nm and A2 = 0.559 at 327 nm. Find the concentration of X in the mixture. al answer:
An aqueous solution contains two
absorbing species, X and Y. When a solution of this mixture is put
into a 5.000 cm cell, the total absorbance of a mixture of X and Y
at 300 nm is 0.372, while at 250 nm it is 0.478. The individual
molar absorptivities of X and Y are as listed below. What are the
individual concentrations of X and Y in this mixture?
250 nm
300 nm
eX
4.05 x 104 M-1 cm-1
3.22...
Two analytes, X and Y, have overlapping absorbance spectra for 200 nm <^ < 800 nm. None the less, determine the concentration of each analyte in an unknown mixture, using the information from absorbance measurements at two a’s. For calibration, individual standards of X and Y were analyzed at a concentration of 2.0 x 10-4M. A 1.0 cm pathlength cell was used. The following data were obtained: Sample Absorbance at 22 Absorbance at 2#1 350 nm 650 nm Unknown Mixture...
I need help with 5 & 7 please
(a) 15.8% (d) 23.8% (b) 0.492 (e) 0.085 (c) 39.4% (f) 5.38% *13-3 Calculate the percent transmittance of solutions having half the abse solutions in Problem 13-1. f the absorbance of the cent transmittance of *13-4 Calculate the absorbance of solutions having twice the percent transmiti those in Problem 13-2. *13-5 A solution containing 6.23 ppm KMnO, had a transmittance of 0.195 in a 10 cell at 520 nm. Calculate the molar...
Question 8 Status: Tries remaining: 21 Points possible: 1.00 Suppose you measure the absorbance of a yellow dye solution in a 1.00 cm cuvette. cm what is The absorbance of the solution at 427 nm is 0.46. If the molar absorptivity of yellow dye at 427 nm is 27400 M the concentration of the solution? Answer: Question 9 Status: Tries remaining: 2 Points possible: 1.00 If you plot the absorbance measurements of solutions vs. their concentrations, what is the slope...
Ligand X forms a complex with both cobalt and copper, each of which has a maximum absorbance at 510 nm and 645 nm, respectively. A 0.241 g sample containing cobalt and copper was dissolved and diluted to a volume of 100.0 mL. A solution containing ligand X was added to a 50.0 mL aliquot of the sample solution and diluted to a final volume of 100.0 mL. The measured absorbance of the unknown solution was 0.447 at 510 nm and...
Most questions answered within 3 hours.
-
3. Stock Valuation: You are the CEO of Under Armour, Inc. and
are thinking about how...
asked 11 minutes ago -
Choose a brand. Critique the brand in terms of its brand
positioning, brand identity and brand...
asked 14 minutes ago -
A vertical curve has grades G1 = 2.8% (downgrade) and
G2 = 2.2 (upgrade) Assume design...
asked 14 minutes ago -
When you speak after breathing helium, in which the speed of
sound is much greater than...
asked 7 minutes ago -
(a) Derive planar density expressions for BCC
(110) plane in terms of the atomic radius R....
asked 9 minutes ago -
I have this problem now and I am not sure what we are exactly
supposed to...
asked 15 minutes ago -
You begin preparation of the calibration curve to measure
absorbance vs concentration of FeSCN2+. To do...
asked 14 minutes ago -
Use the following set of observed frequencies to test the
independence of the two variables. Variable...
asked 38 minutes ago -
Two kg of ice at -15 °C are placed in a 2 kg bath of water...
asked 38 minutes ago -
Describe the following with suitable
examples.
1- Security Policy Heterogeneity
2-Security Model Heterogeneity
3-Security Mechanism Heterogeneity...
asked 39 minutes ago -
Please Identify the Term "Determinism" in Psychology
asked 38 minutes ago -
The table below represents the number of republicans, democrats
and independent voting on a specific issue....
asked 43 minutes ago