In: Accounting
An at-the-money call option with expiry 100 trading days later (for calculations consider that there are 250 trading days per year) is written on a stock XYZ. The volatility of the stock is 26% and the stock pays no dividends during the life of the option. The risk free rate is 5%. Can you find the delta of the option? Suppose that you own 5,000 shares of the stock XYZ, how can you use the available call options to make sure that your portfolio is not affected by changes in the stock in the short run?
In: Finance
(a) How many mL of a 0.1 N solution of NaOH must be added to a 25 mL solution of 0.1 N Acetic Acid to obtain a pH of 9.75? What is the concentration of Acetic Acid at this pH?
(b) Answer the same question with the following changes: [Acetic Acid] = 0.01 N in25mL and the normality of the titrant is 0.02 N. The final pH is 11.
(c) What are the alkalinity and acidity of a water that contains 79 mg/L of HCO3- and has a pH of 7.3? Assume a temperature of 25oC.
In: Chemistry
1 - For the insoluble salt lead (ii) phosphate Pb3(PO4)2, the solubility product, Ksp is 3.10x10-44
a- Write the chemical equation and solubility product expression for Pb3(PO4)2
b- Determine the molar solubility (M) of Pb3(PO4)2
c- Identify wheather the molar solubility of Pb3(PO4)2 will increase or decrease upon the following changes and explain why?
*** The ddition of 0.10 M Pb(NO3)2
*** The addition of 0.10 M NaCl
In: Chemistry
In an upcoming experiment, you will carry out the Diels Alder reaction of anthracene-9-methanol
and N-methylmaleimide. To simplify the modeling, examine the reaction of anthracene with
maleimide (shown above). The goal of this exercise is to examine the dramatic changes in
molecular structure and increases in molecular complexity that accompany the Diels Alder
reaction.
Question: Can the Diels Alder adduct 1 have endo and exo isomers? Why/why not?
The top portion is for context I hope. The question has me confused. Please help.
In: Chemistry
In a test of the effectiveness of garlic for lowering cholesterol, 49 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes (beforeminusafter) in their levels of LDL cholesterol (in mg/dL) have a mean of 2.7 and a standard deviation of 16.8. Construct a 99% confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. What does the confidence interval suggest about the effectiveness of garlic in reducing LDL cholesterol?
In: Statistics and Probability
Starting from volume VA and pressure PA, an ideal gas undergoes the following three-stage, reversible, cyclic process: (i) adiabatic expansion to volume VB, then (ii) isochoric heating to pressure PA, then (iii) isobaric cooling to volume VA. Draw this process on a P V -diagram, and evaluate the change in the entropy of the system (∆S), for each stage. Show that the sum of these entropy changes is zero, as it should be since the system returns to its initial state. Assume CV and CP are constant.
In: Chemistry
Assuming that no equilibria other than dissolution are involved, calculate the concentration of all solute species in each of the following solutions of salts in contact with a solution containing a common ion. Show that changes in the initial concentrations of the common ions can be neglected.
(a) TlCl(s) in 1.250 M HCl
(b) PbI2(s) in 0.0355 M CaI2
(c) Ag2CrO4(s) in 0.225 L of a solution containing 0.856 g of K2CrO4
(d) Cd(OH)2(s) in a solution buffered at a pH of 10.995
In: Chemistry
The following reaction has achieved equilibrium. Predict the effect on the formation of phosphorous pentachloride (increase, decrease or no effect) for the stated changes to the system:
PCl5(g)←→PCl3(g)_Cl2(g)
A) The concentration of phosphorous trichloride is increased.
B) The concentration of chlorine is increased.
C) The volume of the container in which the reaction is taking place is suddenly made smaller.
D) The pressure of the system is increased by adding one atmosphere of gaseous nitrogen to the container.
Could you please explain your answers? Thank you!
In: Chemistry
1) Draw the structure of the product formed by addition of vitamin B1 and benzaldehyde.
2) Ammonia adds to carbonyl groups but is ineffective as a catalyst for the benzoin condensation. Explain.
3) Write a balanced oxidation-reduction equation for the oxidation of benzoin by ammonium nitrate (the cupric ion catalysis need not to be considered).
4) In the benzil oxidation the initial blue color changes to gren as the reaction proceeds. Why?
5) In dilantin sodium it is the imide proton that is abstracted rather than the amide proton. Why?
In: Chemistry