Question:1
You dissolve 312 mg of a compound (A_wB_xC_yD_z) in water producing 14.31 mL of solution and use the photometer and standard solutions to find that the concentration of the A is 1.24 x 10^-2 M. The molar mass of A is 114.52 g/mol.

Moles of A in the solution sample:________________________________

Mass of A in the solution sample: _________________________________

Mass % of A in the compound: _______________________________

Moles of A in 100 grams of the compound: ________________________________



Question:2
The compound, A_wB_xC_y, like all compounds has an oxidation number of 0 (zero). The oxidation number of A is +1, the oxidation number of B is +2, and the oxidation number of C is –1. If there are two moles of A for every 3 moles of C in one mole of the compound, what is the empirical formula of the compound?



Question:3
Given the compound, K_wAl_x(SO₄)_y(H₂O)_z. 100.00 grams of the compound contains 8.24 grams of potassium and 5.69 grams of aluminum. What is the formula of the compound?

(Conceptual Question) Address the following questions pertaining to capital structure theories:

• What does the MM theory with no taxes (i.e., perfect capital markets) state about the value of a levered firm versus the value of an otherwise identical but unlevered firm? What does this imply about the optimal capital structure?
  

• Why does the MM theory with corporate taxes (otherwise markets are perfect) lead to 100% debt?
  

• According to the static trade-off theory, if a firm went from zero debt to successively higher levels of debt, why would you expect its stock price to first rise, then hit a peak, and then begin to decline?
  

• Explain how asymmetric information and signals affect capital structure decisions.
  

• Which capital structure theories does the empirical evidence seem to support? What issues should managers consider when making capital structure decisions?

Bonnaroo is a four-day music festival held every summer in Tennessee since 2002. Suppose the mean attendance for the festival is 80,726 people with a standard deviation of 3,173. Assume the number of people attending the festival is normally distributed. Use the Empirical Rule to answer parts a - c:  

1. Organizers of the festival can expect between____and_____ people to attend the festival 68% of the time.
2. Approximately______% of festivals will be attended by less than 74,380 people.
3. If attendance this year is in the top 2.5%, then the attendance would be______ or more people.
4. Mumford & Sons was one of the headline acts this year, and organizers anticipated a high attendance. An attendance of 95,000 people would be_____ standard deviations_______ (above or below) the mean. (In the first box, you should enter the standardized value rounded to 3 decimal places. In the second box, enter one of the following two words: above or below.)

1. For a certain population, systolic BP is normally distributed with μ=122 and σ=14. Hypertension is defined as systolic BP over 150 mmHg.

a. what is the z-score for systolic BP of 150, given this information? z=

b. What percentage of the population is hypertensive? you may use the empirical rule =

2. Continuing from the previous question where BP follows a normal distribution with μ=122 and σ=14, suppose we randomly sample n=194 individuals from this population. What is the probability that the sample mean of systolic BP obtained from this sample will be between 135 and 146mmHg? It is recommended to first compute the standard error, then compute the z-scores for 135 and 146, then compute the difference between the cumulative probabilities associated with these two z-scores

a. 0.823

b. 0.133

c. 0.841

d. 0.957

1. In general, supply curve slope upward to the right because

1. Technology progresses over time, increasing the ability of firms to produce more at existing price.
2. Increases in the price of a commodity lead to rightward shifts of the supply curve.
3. Rising prices motivate producers to offer more units for sale.
4. Of increases in input prices as production is increase
5. Empirical studies almost always show that this is the case

2. In a free market, actual price will

1. Always exceed equilibrium price.
2. Be very difficult to calculate.
3. Remain unchanged as equilibrium price changes.
4. Cause the demand and supply curves to shift direction.
5. Move toward equilibrium price

3. For a market to exhibit excess supply,

1. Demand must exceed supply.
2. The actual price must above the equilibrium price.
3. The demand curve must slope upward.
4. The supply curve must slope downward
5. None of these above

1. Consider the data set below.

65 68 58 57 71 61 60 67 66 72

60 62 54 57 61 54 55 58 61 55

64 66 56 61 51 83 57 55 58 59

61 55 66 55 58 52 75 67 64 56

55 58 50 62 63 67 57 54 55 63

a.       Find the mean, median and mode.

b.       Find the range, variance, and standard deviation.

c.              Find the lower quartile, upper quartile, and inter-quartile range

2- For the same data set as Problem 1, are there outliers in the data? Justify your conclusion using;

1. Box plot. Use +1.5*interquartile range, (Lower inner fence and Upper inner fence)
2. Empirical rule method.

General equilibrium models of asset pricing allow us to determine the relevant measure of risk for any asset and the relationship between expected return and risk.

Two of these models have been subject to fierce debate among practitioners and academics, The Capital Asset Pricing Model (CAPM) and The Arbitrage Pricing Model (APT). Based on the assumptions and tests of each model you are asked to:

1. Critically analyse the assumptions of both models.

2. Discuss the similarities and differences between them.

3. If you are a portfolio manager and had to choose one of the models, which one would you pick up and why?

In the analysis, students are advised to look into issues such as:

a. The ability of each model to explain systematic risk.

b. Usefulness in predicting excess expected returns.

c. Ability of each model on building up a well-diversified portfolio.

d. Main empirical findings related to the models.

You’re waiting for Caltrain. Suppose that the waiting times are approximately Normal with a mean of 12 minutes and a standard deviation of 3 minutes. Use the Empirical Rule to estimate each of the following probabilities without using the normalcdf function of your calculator:

a) What is the probability that you’ll wait between 9 and 15 minutes for the train?

b) What is the probability that you’ll wait between 6 and 18 minutes for the train?

c) What is the probability that you’ll wait between 3 and 21 minutes for the train?

d) What is the probability that you’ll wait more than 12 minutes for the train?

e) What is the probability that you’ll wait between 12 and 18 minutes for the train?

f) What is the probability that you’ll wait between 3 and 18 minutes for the train?

g) What is the probability that you’ll wait more than 21 minutes for the train?

A common piece of advice about writing a "bad news message" is to use the indirect approach: use buffers before the reader gets the negative news. The article, "Buffers in bad news messages and recipient perceptions," claims that there is no empirical proof to support using the indirect approach with bad news.

Read the article, especially the section titled "Significant findings and their implications," then

write a bad news message using the strategy that Limaye suggests;

reflect on how this approach is similar or different to other "bad news messages" that you have read or received.

Which type of "bad news message" do you prefer? Why?

Limaye, M. (1988). Communication forum. Management Communication Quarterly 2(1), 90. Retrieved from https://csuglobal.idm.oclc.org/login?url=https://search-proquest-com.csuglobal.idm.oclc.org/docview/232847943?accountid=38569

Thinking about Treatment

STEP 1: Choose ONE of the following questions and respond to it in a post of at least 200 words.

Psychoanalytic theory is no longer the dominant therapeutic approach, because it lacks empirical support. Yet many consumers continue to seek psychoanalytic or psychodynamic treatments. Do you think psychoanalysis still has a place in mental health treatment? If so, why?

What might be some advantages and disadvantages of technological advances in psychological treatment? What will psychotherapy look like 100 years from now?

Some people have argued that all therapies are about equally effective, and that they all affect change through common factors such as the involvement of a supportive therapist. Does this claim sound reasonable to you? Why or why not?

When choosing a psychological treatment for a specific patient, what factors besides the treatment’s demonstrated efficacy should be taken into account?