Using 1.0 nM enzyme X for the enzyme kinetics experiments, you obtained the reaction rates at different concentrations of substrate (shown in the following table). Assume that the enzyme X follows a typical Michaelis-Menten kinetics.
[substrate] (μM) Reaction rate (μmol/s)
2 7
5 17
10 29
20 44
50 67
100 80
200 89
500 95
1000 98
a) Estimate the Vmax and Km values of the enzyme X in this reaction using the double reciprocal plot.
b) If 5.0 nM of the enzyme X is used in the experiment, what will be the Vmax and Km values of the enzyme X?
In: Chemistry
EVALUATING RISK AND RETURN Stock X has a 10.5% expected return, a beta coefficient of 1.0, and a 30% standard deviation of expected returns. Stock Y has a 12.5% expected return, a beta coefficient of 1.2, and a 30.0% standard deviation. The risk-free rate is 6%, and the market risk premium is 5%. Calculate each stock's coefficient of variation. Round your answers to two decimal places. Do not round intermediate calculations. CVx = CVy = Which stock is riskier for a diversified investor? For diversified investors the relevant risk is measured by beta. Therefore, the stock with the higher beta is more risky. Stock Y has the higher beta so it is more risky than Stock X. For diversified investors the relevant risk is measured by standard deviation of expected returns. Therefore, the stock with the higher standard deviation of expected returns is more risky. Stock X has the higher standard deviation so it is more risky than Stock Y. For diversified investors the relevant risk is measured by beta. Therefore, the stock with the lower beta is more risky. Stock X has the lower beta so it is more risky than Stock Y. For diversified investors the relevant risk is measured by standard deviation of expected returns. Therefore, the stock with the lower standard deviation of expected returns is more risky. Stock Y has the lower standard deviation so it is more risky than Stock X. For diversified investors the relevant risk is measured by beta. Therefore, the stock with the higher beta is less risky. Stock Y has the higher beta so it is less risky than Stock X. Calculate each stock's required rate of return. Round your answers to two decimal places. rx = % ry = % On the basis of the two stocks' expected and required returns, which stock would be more attractive to a diversified investor?
Calculate the required return of a portfolio that has $4,000 invested in Stock X and $8,000 invested in Stock Y. Do not round intermediate calculations. Round your answer to two decimal places.
rp = % If the market risk premium increased to 6%, which of the two stocks would have the larger increase in its required return?
In: Finance
1)
A 1.0-L buffer solution is 0.125 M in HNO2 and 0.180 M in NaNO2.
Part A
Determine the concentrations of HNO2 and NaNO2 after addition of 1.5 g HCl.
Express your answers using three significant figures separated by a comma.
Part B
Determine the concentrations of HNO2 and NaNO2 after addition of 1.5 g NaOH.
Express your answers using three significant figures separated by a comma.
Part C
Determine the concentrations of HNO2 and NaNO2 after addition of 1.5 g HI.
Express your answers using three significant figures separated by a comma.
2)
A 1.0 L buffer solution is 0.250 M HC2H3O2 and 0.050 M LiC2H3O2. Which of the following actions will destroy the buffer?
A 1.0 L buffer solution is 0.250 M HC2H3O2 and 0.050 M LiC2H3O2. Which of the following actions will destroy the buffer?
| adding 0.050 moles of LiC2H3O2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| adding 0.050 moles of NaOH | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| adding 0.050 moles of HC2H3O2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| adding 0.050 moles of HCl | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
None of the above will destroy the buffer. 3) Part A Write a balanced equation for the dissolution of CaCO3. Express your answer as a chemical equation. Identify all of the phases in your answer. Part B Write an expression for Ksp for the dissolution of CaCO3. Write an expression for for the dissolution of .
|
In: Chemistry
A parallel-plate capacitor with plate separation of 1.0 cm has square plates, each with an area of 6.0 × 10 -2 m 2. What is the capacitance of this capacitor if a dielectric material with a dielectric constant of 2.4 is placed between the plates, completely filling them? ( ε 0 = 8.85 × 10 -12 C 2/N ∙ m 2)
A)1.3 × 10-12 F
B)1.3 × 10-10 F
C)64 × 10-14 F
D)15 × 10-12 F
E)15 × 10-14 F
In: Physics
Subject: Computer networks and chapter :packets
1.0. Suppose a link has a propagation delay of 20 µsec and a bandwidth of 2 bytes/µsec.
(a). How long would it take to transmit a 600-byte packet over such a link?
(b). How long would it take to transmit the 600-byte packet over two such links, with a store-and-forward switch in between?
if there is a diagram please draw the diagram
In: Computer Science
Consider separate 1.0 L samples of the following gases at STP: Cl2, C2H6, and Xe. Which of the following statements are true regarding these gas samples?
The C2H6 gas sample has the smallest average kinetic energy.
The mass of the gas in each container is the same.
The C2H6 gas molecules collide with the container walls most frequently.
The C2H6 gas sample has the lowest density.
Each Cl2 gas particle collision with the container wall is more forceful as compared to each C2H6 and Xe collision.
The Cl2 gas sample has the most molecules of gas present.
In: Chemistry
Consider separate 1.0 L samples of the following gases at STP:
Cl2, C2H6, and Xe.
Which of the following statements are true regarding these gas
samples?
TrueFalse The C2H6 gas sample has the most
molecules of gas present.
TrueFalse The C2H6 gas sample has the
smallest average kinetic energy.
TrueFalse The mass of the gas in each container is different.
TrueFalse The C2H6 gas sample has the lowest
density.
TrueFalse Each Xe gas particle collision with the container wall is
more forceful as compared to each C2H6 and
Cl2 collision.
TrueFalse The C2H6 gas molecules collide with
the container walls most frequently.
i put false, false, true, true, false, false but its wrong
In: Chemistry
A random sample of 6 cars from a particular model year had the following fuel consumption figures (in miles per gallon). Find the 99% confidence interval for the true mean fuel consumption for cars of this model year.
Sample data:
20.9, 18.1, 18.5, 21, 20.3, 20.2
find left endpoint & right endpoint.
In: Statistics and Probability
A random sample of six cars from a particular model year had the following fuel consumption figures (in miles per gallon). Find the 98% confidence interval for the true mean fuel consumption for cars of this model year.
Sample Data
18.6
19.3
19.4
19.8
19.6
19.7
What is the left and right endpoint? Please help
In: Statistics and Probability
1.The notion of sustainability is used differently in economics than in the natural sciences. Explain the meaning of sustainability in these two frameworks, and discuss the attempts that have been made by economists to make the concept operational.
2. Would the extension of territorial limits for fishing beyond 200 miles from coastlines offer the prospect of significant improvements in the efficiency of commercial fishing
In: Economics