1. Ozone (O3) in the atmosphere can react with nitric oxide (NO): O3(g) + NO(g) ( NO2(g) + O2(g), with (H( = -199 kJ/mol, (S( = -4.1 J/K·mol. Calculate the (G( for this reaction at 25(C. A. 1020 kJ/mol

B. -1.22 ( 103 kJ/mol
C. 2.00 ( 103 kJ/mol
D. -1.42 ( 103 kJ/mol
E. -198 kJ/mol

2. For the reaction H2(g) + S(s) ( H2S(g), (H( = -20.2 kJ/mol and (S( = +43.1 J/K·mol. Which of these statements is true? A. The reaction is only spontaneous at low temperatures. B. The reaction is spontaneous at all temperatures.

C. (G( becomes less favorable as temperature increases. D. The reaction is spontaneous only at high temperatures. E. The reaction is at equilibrium at 25(C under standard conditions.

3. Calculate (G( for the combustion of ethanol vapor, C2H5OH(g), at 750(C in oxygen to form carbon dioxide and water vapor. A. -1407 kJ/mol
B. -2151 kJ/mol
C. -1307 kJ/mol
D. -4486 kJ/mol
E. -1377 kJ/mol

4. Hydrogen peroxide (H2O2) decomposes according to the equation: H2O2(l) ( H2O(l) + (1/2)O2(g). Calculate Kp for this reaction at 25(C. ((H( = -98.2 kJ/mol, (S( = 70.1 J/K·mol) A. 1.3 ( 10-21

B. 20.9
C. 3.46 ( 1017
D. 7.5 ( 1020
E. 8.6 ( 104

5. The equilibrium constant for the reaction AgBr(s) ℜ Ag+(aq) + Br- (aq) is Ksp = 7.7 ( 10-13 at 25(C. Calculate (G for the reaction when [Ag+] = 1.0 ( 10-2 M and [Br-] = 1.0 ( 10-3 M. Is the reaction spontaneous or nonspontaneous at these concentrations? A. (G = 69.1 kJ/mol, nonspontaneous

B. (G = -69.1 kJ/mol, spontaneous
C. (G = 97.5 kJ/mol, spontaneous
D. (G = 40.6 kJ/mol, nonspontaneous
E. (G = -97.5 kJ/mol, nonspontaneous

6. The element oxygen was prepared by Joseph Priestley in 1774 by heating mercury(II) oxide: HgO(s) ( Hg(l) + ½ O2(g) (H( =...

...1
Problem 1-4. An Analysis of the transactions made by Acme
Consulting for the month of July
1. Explain each transaction.
1) $20,000 is the amount invested by the owner/s into the business
2) $7,000 is the cost of the equipment purchased for the business. $5,000 has been paid. $2,000 is the amount still owed for the purchase.
3) $1,000 is the amount expended to purchase inventories and supplies for the business.
4) $4,500 is the amount paid for salaries of the business’ employees.
5) $10,000 is the revenue of the business. $5,000 has been paid in cash, while $5,000 is still yet to be received.
6) $1,500 is the amount further paid for the purchase of the equipment referred to in (2).
7) $1,000 of the $5,000 in number (5), account receivable, has been paid.
8) $750 is the amount paid for rent
9) $500 is the amount paid for utilities
10) $200 is the amount expended for travel which has been through credit.
11) $200 is the worth of supplies that has been used by the business.
2. List the changes in the company’s balance sheet during the month of July
|Acme Consulting |
|Balance Sheet |
|July...

...Selected answer key for problem set 1 Econ262
C1.2 (i) There are 1,388 observations in the sample. Tabulating the variable cigs shows that 212 women have cigs > 0.
(ii) The average of cigs is about 2.09, but this includes the 1,176 women who did not smoke. Reporting just the average masks the fact that almost 85 percent of the women did not smoke. It makes more sense to say that the “typical” woman does not smoke during pregnancy; indeed, the median number of cigarettes smoked is zero.
(iii) The average of cigs over the women with cigs > 0 is about 13.7. Of course this is much higher than the average over the entire sample because we are excluding 1,176 zeros.
(iv) The average of fatheduc is about 13.2. There are 196 observations with a missing value for fatheduc, and those observations are necessarily excluded in computing the average.
(v) The average and standard deviation of faminc are about 29.027 and 18.739, respectively, but faminc is measured in thousands of dollars. So, in dollars, the average and standard deviation are $29,027 and $18,739.
C1.3 (i) The largest is 100, the smallest is 0.
(ii) 38 out of 1,823, or about 2.1 percent of the sample.
(iii) 17
(iv) The average of math4 is about 71.9 and the average of read4 is about 60.1. So, at least in 2001, the reading test was harder to pass.
(v) The sample correlation between math4 and read4 is about...

...pool is common property, it is vested in the Owner’s Corporation as agent for the lot owners as tenants in common proportional to the unit entitlement of their lots.
Accordingly, the Owners Corporation has a statutory duty to maintain and repair the common property vested in it. This includes a duty to renew or replace any fixtures forming part of the common property. Essentially, it involves anything necessary on part of the Owners Corporation to ensure the common property serves the purpose for which it exists and that the lot owners’ enjoyment and access of the common property is unimpeded. The statutory duty to repair and maintain common property is absolute and includes a duty to take preventative measures, ensuring a problem does not arise in the future. Hence, this duty preserves the ‘integrity of the physical structure of common property’.
Prima Facie, the pool heater forms part of the physical structure of the common property due its location on the third floor of The Waves. The lot owners’ enjoyment of the pool is hindered as the cold water restricts its use all year round. Thus, the pool fails to serve the purpose for which it exists. The Owners Corporation for The Waves is responsible for ensuring the pool is fully functioning , and in a state of serviceable repair. As the original construction of the pool included a heater, by fixing it, the Owners Corporation would simply be restoring the pools functioning to its original...

...Chapter 7
← Problem 7-43 - ACL Problem Solution
a. There are 44 payroll transactions in the Payroll file. (This is determined by reading the number at the bottom of the screen.)
b. The largest and smallest gross pay amounts for September are $4,395.83 and $1,278.33, respectively. (Use Quick Sort.)
c. Total gross pay for September was $99,585.46. (Use the Total command.)
d. The report on the following page shows gross pay by department. (Use the Summarize command on the Gross Pay column, save to a file, and print.) Note that this screenshot was produced using the “Screen” option in the Output tab of the Summarize window. Students’ hardcopy printouts will appear slightly different, but will contain the same departmental totals.
e. There are no exceptions in the calculation of net pay for September. (Use the following Filter: Gross Pay – Taxes < > Net Pay.)
f. There are no duplicate check numbers. (Use the Duplicates command on the check [cheque] number column). There are four missing checks (#12389- #12392). The audit concern is that there may be unrecorded payroll transactions. (Use the Gaps command on the check [cheque] number column.)
Report for requirement d:
[pic]
Chapter 8
Problem 8-41 – ACL Problem Solution
a. The following is a printout of the Statistics command for Inventory Value at Cost:
Field : Value...

... Microeconomics (Fall 2014)
Simon Bowmaker
Problem Set 6
Submit at lecture (Monday, November 10)
Write your answers on separate sheets of paper. Please include:
your name
your recitation teacher’s name
day and time of the recitation
NB: if your recitation takes place on Monday morning, you must submit your assignment to your teacher at the beginning of the recitation.
1. Assume a monopolist faces the following market demand: Q = 100 - 2P. The monopolist’s total cost function is TC = 5+8Q2. What is the monopolist’s profit-maximizing level of output and price?
Answer
Step 1. Derive the MR and MC functions.
Since Q = 100 - 2P, P = 50 – (Q/2)
TR=P*Q=(50-1/2Q)Q=50Q-1/2Q2
MR=dTR/dQ=50-Q
MC=dTC/dQ=16Q
Step 2. Set MR=MC and solve for P*, Q*
MR=MC
50-Q=16Q
Q*=2.94 or 3 (rounded)
P*=50-1/2Q*=50-1/2*3=48.5
2. Assume a monopolist faces a market demand curve P = 130 – 2Q, and has the short-run total cost function TC = 350 + 10Q.
(a) What is the profit-maximizing level of output and price? What are profits?
(b) Graph the marginal revenue, marginal cost, and demand curves.
(a) Step 1. Derive the MR and MC functions.
P 130 – 2Q
TR=P*Q=(130 – 2Q)Q=130Q – 2Q2
MR=dTR/dQ=130 – 4Q
MC= dTC/dQ=10
Step 2. Set MR=MC and solve for P*, Q*, and π.
MR=MC
130 – 4Q=10
4Q=120
Q*=30
P*=130 – 2Q=130 – 2*30=130-60=70
Π=TR-TC=P*Q-TC=70*30-(350 10*30)=2100-650=1450
(b) Deadweight loss is equal to area abc.
3. If a monopoly firm...

...Econ 100
Winter 2013
Problem set 1
1. Find the derivative with respect to x for the following functions.
a. f ( x ) = ax 3 + bx 2 + x ;
b.
f ( x ) = ax ln x ;
2. What is the price elasticity of the demand curve Q(p) = a - bln(p)?
-‐
_
_
_
3. Suppose that the demand for water balloons fit the function D(p,ps) = D( p, ps ) = .2 p−.5 ps−.2
where p is the price of water balloons and ps is the price of super soakers (an advanced squirt
gun technology).
€ or a substitute for water
Based upon this demand curve, are super soakers a compliment
balloons? Demonstrate why.
The partial derivative of demand with respect to the price of squirt guns is
For any positive price of water balloons and squirt guns, this is negative. So
quantity of water balloons goes down with an increase in the price of squirt guns.
So squirt guns are a complement to water balloons.
1
4. Suppose that the current price of oil is $60 per barrel and the quantity sold is 90 million
barrels per day. Assume that the supply and demand curves for oil are linear. The current
estimates of the price elasticity of supply and demand in the U.S. are η = 1 and ε = - .2
respectively. Assume that the supply and demand curves for oil are linear. In other words,
supply can be expressed as S(p) = a + bp, and demand as D(p) = e – fp.
a. Derive the intercept and slope of the supply curve, a and b.
⌘=
dS 60 dS
90
;
=b=
= 1.5;
dp 90 dp
60
s(60) = 90 = a + 1.5 ⇤ 60; a = 0.
b....

...FIN532M: Financial Derivatives
Problem Set 2
DUE DATE: Feb. 12, 2015
1. How can you differentiate the forward price from the value of a forward contract?
(2 points)
2. Explain why an FRA can be viewed as an exchange of a floating rate of interest for a fixed rate of
interest payments and how you can use FRA in mitigating risks.
(4 points)
3. The standard deviation of monthly changes in the spot price of live cattle is 1.2 cents per pound. The
standard deviation of monthly changes in the futures price of live cattle for the closest contract is 1.4.
The correlation between the futures price and the spot price changes is 0.7. It is now Feb 5 and a beef
producer is committed to purchase 200,000 pounds of live cattle on April 10. The producer wants to use
the May live-cattle futures contracts to hedge its risk where each contract is for the delivery of 40,000
pounds of live cattle. Answer the following:
a. Indicate the optimal hedge ratio.
(2 points)
b. Indicate if long or short and the optimal number of May contracts to be used.
(2 points)
4. An index is 1,200. The three-month risk-free rate is 3% per annum and the dividend yield over the
next three months is 1.2% per annum. The six-month risk-free rate is 3.5% per annum and the dividend
yield over the next six months is 1% per annum. All interest rates and dividend yields are continuously
compounded. Estimate the futures price of the index for six-month contract.
(3 points)
5. Suppose the zero...

...FBE 421 Prof. Briggs Problem Set #1
Please print out this document and clearly handwrite your answers to each of the questions below in the space provided. Show all your work accordingly.
A. Calculate LTM (a) Revenue and (b) Net Income for Costco Wholesale (COST) using their latest financial statements as of 3Q2011.
77946+60737-53821=84,862 MM Revenue 1303+984-871= 1,416 MM Net-income
B. Calculate Costco’s LTM (a) EBIT and (b) EBITDA.
2077+1677-1389=2,365 MM EBIT (2077+795)+(1677+582)-(1389+549)= 3192 MM EBITDA
Name: Student ID:
￼1.
￼C. Calculate Costco’s (a) Market Cap, (b) Total Debt and (c) Enterprise Value as of 3Q2011.
a) 437,735,000 * 85.07 = 37.238 Bn
b) 1+900+1,247=2.148 Bn
c) 37.238+2.148+.578 (minority interest)-4.082= 35.882 Bn (35,882 MM)
D. Calculate Costco’s (a) EV/Revenue and (b) EV/EBIT multiples.
a) 35,882/84,862=.42x b) 35,882/2,365=15.17x
2. Explain the differences between a firm’s (a) market value, (b) enterprise value, and (c) book value.
a) Market value, otherwise known as market capitalization, is the current value of the firm’s common equity on the open market. This is the value necessary to buy the entire firm’s equity.
b) Enterprise value is the value of all the claims on the firm’s capital structure less cash. This includes the value of equity, preferred stock, debt, and minority interest less cash. This is the value necessary to purchase the entire firm.
c) Book value is the value of a firm’s equity...