Calculate the molar extinction coefficient (epsilon) for Allura Red at 504nm. (It would not let me...
Calculate the molar extinction coefficient (epsilon) for Allura Red at 504nm. (It would not let me upload the pic or link so here it is https://imgur.com/a/go1jiZ3 )
Homework Answers
To calculate the molar extinction coefficient of Allura red, we have to make the calibration curve.
Plot the values of dye concentration on x-axis and corresponding values of absorbance on y-axis.
Ideally we should get a straight line but if the line is not straight then determine the best fit line.
From graph (attached below) we see that equation of best fit line is : y = 23714x + 0.016
where y represents absorbance and x represents concentration of dye (M)
Value of slope = 23714 M-1
Molar extinction coefficient = (slope) / (path length)
Molar extinction coefficient = (23714 M-1) / (1.00 cm)
Molar extinction coefficient = 23714 M-1cm-1
Add Answer to:
Calculate the molar extinction coefficient (epsilon) for Allura
Red at 504nm. (It would not let me...
Please help me answer the following questions: (iv) Calculate the molar extinction coefficient (molar absorptivity) of t...
Please help me answer the following
questions:
(iv) Calculate the molar extinction
coefficient (molar absorptivity) of the maximum absorbance of the
spectrum in Figure 1.
(v) Estimate the wavenumber gap
between the vibrational levels that gives the vibronic structure
apparent in the spectrum of anthracene. Check your answer before
proceeding to answer the next question. (Note: the peaks
are a single vibronic progression so you can average your estimates
of the wavenumber gap.)
5 M compound (2) Figure 1: Absorbance...
Using the following table, calculate the molar extinction coefficient (use slope or gradient) uM = micromolar...
Using the following table, calculate the molar extinction
coefficient (use slope or gradient)
uM = micromolar
Tabla 3 Cálculo del coeficiente de extinción. Extinction ONPI uM concentration Absorbancecoefficient 2,48 X 10 0,124 50 uM 75 uM 0,199 2,65X103 0,252 100 uM 2,52X103 200 uM 0,351 1,755X10 300 uM 0,523 1,74X10 400 uM 0,715 1,7875X10 500 uM 0,825 1,65X103
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Please help me calculate the concentrarion of diluted red#3 more covewire is 2.5 mL of e...
Please help me calculate the concentrarion of diluted
red#3
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Show all work for full credit. You would like to determine the equilibrium constant for the bindi...
please help me with filling the table and show me how
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Show all work for full credit. You would like to determine the equilibrium constant for the binding of a ligand to a metal ion: Mt" + L-<-> ML2+, where K-[([M1.*.1)/(M1")(し11. The ML-complex has aunique absorbance in the visible region, so its concentration at equilibrium can be determined by measuring the absorbance of the solution at an appropriate wavelength. An ICE table can used to determine...
Ssuppose that Л (capital epsilon) = 58 V, R = 2.40 × 102 Ω, and L...
Ssuppose that Л (capital epsilon) = 58 V, R = 2.40 × 102 Ω, and
L = 0.154 H. Initially there is no current in the circuit. Switch
S2 is left open, and switch S1 is closed.
Just after S1 is closed, what is the potential differences
Vab?
Just after S1 is closed, what is the potential differences
Vbc?
A long time (many time constants) after S1 is closed, what is
Vab?
A long time (many time constants) after S1...
I need help filling out the table, please let me know if any of the values are wrong - the link to the data sheet is at the bottom in red. There are 2 corresponding questions too, thank you! Downl...
I need help filling out the table, please let me know if any
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bottom in red. There are 2 corresponding questions too, thank
you!
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So here is the problem and solution. i would like to understand how to solve the...
So here is the problem and solution. i would like to
understand how to solve the problem. Would someone please be able
to link me to some specific notes/resources/videos on
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thank you so much in advance!
P1. (5 pts) Y, and Y, are independent N(0,1) random variables. Let Z1 = Y, + Y , Z = Y- Y, and 23 = Y. Find Cov(2) where Z' = (21,22,23). Show your work. Solution. Note that £y = Cov...
Please help me answer the following
questions:
(iv) Calculate the molar extinction
coefficient (molar absorptivity) of the maximum absorbance of the
spectrum in Figure 1.
(v) Estimate the wavenumber gap
between the vibrational levels that gives the vibronic structure
apparent in the spectrum of anthracene. Check your answer before
proceeding to answer the next question. (Note: the peaks
are a single vibronic progression so you can average your estimates
of the wavenumber gap.)
5 M compound (2) Figure 1: Absorbance...
Using the following table, calculate the molar extinction
coefficient (use slope or gradient)
uM = micromolar
Tabla 3 Cálculo del coeficiente de extinción. Extinction ONPI uM concentration Absorbancecoefficient 2,48 X 10 0,124 50 uM 75 uM 0,199 2,65X103 0,252 100 uM 2,52X103 200 uM 0,351 1,755X10 300 uM 0,523 1,74X10 400 uM 0,715 1,7875X10 500 uM 0,825 1,65X103
Please help me calculate the concentrarion of diluted
red#3
more covewire is 2.5 mL of e u.uxigon M Bed3 Part B: Spectrum of FD&C Red #3 & Molar Absorptivity 2. Stock Concentration of Red #3 = 4.0 X10 M Volume Stock Red #3 added – S o m then dulo ad 3. Calculated concentration of diluted Red #3 = Calculations:
please help me with filling the table and show me how
you did it. thanks
Show all work for full credit. You would like to determine the equilibrium constant for the binding of a ligand to a metal ion: Mt" + L-<-> ML2+, where K-[([M1.*.1)/(M1")(し11. The ML-complex has aunique absorbance in the visible region, so its concentration at equilibrium can be determined by measuring the absorbance of the solution at an appropriate wavelength. An ICE table can used to determine...
Ssuppose that Л (capital epsilon) = 58 V, R = 2.40 × 102 Ω, and
L = 0.154 H. Initially there is no current in the circuit. Switch
S2 is left open, and switch S1 is closed.
Just after S1 is closed, what is the potential differences
Vab?
Just after S1 is closed, what is the potential differences
Vbc?
A long time (many time constants) after S1 is closed, what is
Vab?
A long time (many time constants) after S1...
I need help filling out the table, please let me know if any
of the values are wrong - the link to the data sheet is at the
bottom in red. There are 2 corresponding questions too, thank
you!
Download the manufacturer datasheet for the 2N3904 and fill in the values in the table below: Table 1: 2N3904 BJT manufacture's parameters Max. collector current 200 mA DC Max.power dissipation Max. junction voltages: C-E, C-B, E-B Typical value of Vce in...
database management
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So here is the problem and solution. i would like to
understand how to solve the problem. Would someone please be able
to link me to some specific notes/resources/videos on
solving/understanding the material
thank you so much in advance!
P1. (5 pts) Y, and Y, are independent N(0,1) random variables. Let Z1 = Y, + Y , Z = Y- Y, and 23 = Y. Find Cov(2) where Z' = (21,22,23). Show your work. Solution. Note that £y = Cov...
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