Can we have molar extinction coefficient for reduced cysteine? as to compare, oxidized...
Can we have molar extinction coefficient for reduced cysteine? as to compare, oxidized cysteine has an extinction coefficient. please explain why or why not.
Homework Answers
The molar extinction coefficient for reduced cysteine is very low around 125 M-1cm-1. This is due to disulfide bond in cysteine. Due to this the absorbance of reduced cysteine is negligible at wavelength above 260 nm.
Add Answer to:
Can we have molar extinction coefficient for reduced cysteine? as to compare, oxidized...
Human myoglobin is a protein with a molar extinction coefficient at 280nm of 1.40 x 104...
Human myoglobin is a protein with a molar extinction coefficient at 280nm of 1.40 x 104 M-1cm-1 . 100.0 uL of the stock solution of myoglobin (the tube was marked as 0.050 mg/mL) was mixed with 0.900 mL of buffer, giving an absorbance at 280nm of 0.810 (cuvette is 1.00 cm pathlength). From this information, what is the molecular weight of human myoglobin? Do you think this is a reasonable value? Explain WHY or WHY NOT?
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...
The redox dye DCIP has a molar extinction coefficient of 22,000 at 600 nm. A. What...
The redox dye DCIP has a molar extinction coefficient of 22,000 at 600 nm. A. What absorbance would a 5 µM solution have ? B. A chemical reacts with DCIP to convert it to a colorless, non-absorbing solution. A solution of DCIP with an absorbance of 1.0 is reacted with an aliquot (portion) of this chemical. Afterwards, without volume change, the solution has an absorbance of 0.4. What was the concentration change for DCIP in this reaction (ie how much...
Why do biochemists use E^1% values over molar extinction coefficients? I know this has to do...
Why do biochemists use E^1% values over molar extinction coefficients? I know this has to do with the fact it is super hard to obtain 1 M solution of a protein in a lab. But why? We are currently doing spectrophotometry in my biochemistry lab.
Can competition or predation cause extinction? Why or why not? Please explain your answer in detail.
Can competition or predation cause extinction? Why or why not? Please explain your answer in detail.
1. in the decomposition of hydrogen peroxide, which substance is oxidized and which is reduced? 2....
1. in the decomposition of hydrogen peroxide, which substance is oxidized and which is reduced? 2. Gold metal is always at the bottom of the activity series. Explain why this means that gold is a good substance for dental fillings. 3. Use the internet or book sources to discover the function of iron in heme. Is the iron in ionic or atomic form, and if ionic, what is its charge (oxidation state)? Is it always in the same oxidation state...
Percent by mass of dye in Fruit Loops cereal 11.56*100 QUESTIONS: 1. If the molar extinction coefficient (E) of a...
Percent by mass of dye in Fruit Loops cereal 11.56*100 QUESTIONS: 1. If the molar extinction coefficient (E) of a compound is 2.5 x 108 moli'cmat $28 nm and the Abs Cat 528 nm) 0.254 Dind the concentration of that solution. (assume a path length of 1.0 cm) 2. If a student measures a sample that gives an Abs = 1.85 at the 2max, is this data reliable? If not, then what might they do to improve their data? 3....
9) Idose can be both oxidized and reduced. Draw the Fischer projection of both products CHO...
9) Idose can be both oxidized and reduced. Draw the Fischer projection of both products CHO HO HO -H CH OH Reduction Product D-isomer Oxidation Product L-isomer 12) If you have type AB blood, which of the following statements would be true? -a. You would have type A antigens -b. You would have type A and type B antibodies c. You would have no antibodies d. You would have type A and type B antigens
EXERCISE 18.6 How Quickly Can Humans Hunt a Species to Extinction? Name: Course: Section: Date: The...
EXERCISE 18.6 How Quickly Can Humans Hunt a Species to Extinction? Name: Course: Section: Date: The moa, a giant flightless bird, was hunted to extinction on New Zealand in the early 1400s. The human population of New Zealand was no more than 2,500 at the time when the moa went extinct. We can make some simplified calculations to see how many moas were hunted per year (a) Humans first settled New Zealand and began hunting moas in 1314. The last...
please do both d and e We also showed that power consumption can be reduced by...
please do both d and e
We also showed that power consumption can be reduced by introducing an active component, such as a bipolar transistor, into the circuit. The model for such a circuit is shown below: 400TB l0V RE VL 2 I5 points] When using the node method to solve this problem, we end up with 2 unknown voltages, Vs and Vi. Explain why. d. (10 points] Repeat parts b. and c. to determine R1 and R2 for the...
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...
Percent by mass of dye in Fruit Loops cereal 11.56*100 QUESTIONS: 1. If the molar extinction coefficient (E) of a compound is 2.5 x 108 moli'cmat $28 nm and the Abs Cat 528 nm) 0.254 Dind the concentration of that solution. (assume a path length of 1.0 cm) 2. If a student measures a sample that gives an Abs = 1.85 at the 2max, is this data reliable? If not, then what might they do to improve their data? 3....
9) Idose can be both oxidized and reduced. Draw the Fischer projection of both products CHO HO HO -H CH OH Reduction Product D-isomer Oxidation Product L-isomer 12) If you have type AB blood, which of the following statements would be true? -a. You would have type A antigens -b. You would have type A and type B antibodies c. You would have no antibodies d. You would have type A and type B antigens
EXERCISE 18.6 How Quickly Can Humans Hunt a Species to Extinction? Name: Course: Section: Date: The moa, a giant flightless bird, was hunted to extinction on New Zealand in the early 1400s. The human population of New Zealand was no more than 2,500 at the time when the moa went extinct. We can make some simplified calculations to see how many moas were hunted per year (a) Humans first settled New Zealand and began hunting moas in 1314. The last...
please do both d and e
We also showed that power consumption can be reduced by introducing an active component, such as a bipolar transistor, into the circuit. The model for such a circuit is shown below: 400TB l0V RE VL 2 I5 points] When using the node method to solve this problem, we end up with 2 unknown voltages, Vs and Vi. Explain why. d. (10 points] Repeat parts b. and c. to determine R1 and R2 for the...
Most questions answered within 3 hours.
-
Given two polynomials equation, write a function that
adds and multiply the given two
polynomials.
It...
asked 7 minutes ago -
Implement the Unsorted, sorted and indexed lists using Linked
List base structure. (LLNode class under support...
asked 9 minutes ago -
Exercise 5-21 Income (loss) recognition; Long-term contract;
revenue recognition over time vs. upon project completion
[LO5-9]...
asked 12 minutes ago -
A rich aunt has promised you $2,090.00, one year from today. In
addition, each year after...
asked 12 minutes ago -
Data from the past shows that on average, a ready-mixed concrete
plant receives 100 orders for...
asked 1 hour ago -
The table below shows the number of state-registered automatic
weapons and the murder rate for several...
asked 1 hour ago -
Container A holds 762 mL of ideal gas at 2.60 atm. Container B
holds 144 mL...
asked 1 hour ago -
1)
Why is bulk transport necessary in both plants and animals?
The premise of the question...
asked 1 hour ago -
What is the result of the following in MongoDB?
>use MovieDB
>db.movies.find( { genre: { $ne:...
asked 1 hour ago -
What is the NPV?
r=9.28
c1= 5.853
c2= 6.37 + 1,826.76
asked 1 hour ago -
Please think of 2 on line only retailers that might benefit from
a brick and mortar...
asked 2 hours ago -
The definition of a partition
function involved a sum over all states, and knowledge of the...
asked 3 hours ago