1. Write the balanced equation (not the mechanism) for the protonation of nitric acid by sulfuric acid, represented as an equilibrium expression.

2. Write the equilibrium constant expression for the reaction shown in question 1 above.

3. Consider the pKa values shown below:

H2SO4: -3

HSO4!: +2

HNO3: -1.3

H2NO3+: -13

Based on these pKa values, determine the equilibrium constant for the reaction that you wrote down for question 1.

4. The proton NMR spectrum of chlorobenzene was examined by Hiyamizu and coworkers in 1968. Their analysis revealed the following chemical shifts. The hydrogens ortho to the chlorine are at 7.28 ppm. The hydrogens meta to the chlorine are at 7.23 ppm. The hydrogen para to the chlorine is at 7.16 ppm.

A) Use arrow formalisms to draw resonance structures of chlorobenzene using the chlorine as an electron donor.

B) One might expect that the positions that have negative charges (and hence excess electron density) in the resonance structures would be the most upfield, but this is not the case. Explain why, and explain why the chemical shifts appear where they do relative to each other.

1. Describe the difference between a workstation from a server. The reading material is provide on the link below. You must use your own keywords to make your point. DO NOT COPY THE CONTENT ON THE LINK. Limit your writing to maximum of 300 words.

https://www.diffen.com/difference/Server_vs_Workstation

The Scientific Store received an invoice for $6710.00 dated July 13, terms 5/10, 2/30,
n/90, for a shipment of skis. Calculate the partial payments made 20 July to reduce the
balance to $4000.00 Round to nearest 100th.

Written please.

Question 1 options:

Below is a table of times for Taxis (A to H) to reach Customers (1 to 8) who need a ride home after a night on the town. The goal is to Minimize the time it takes for all of the Taxis to reach their Customers. Only one Taxi will be sent to each Customer and each Customer needs only one Taxi.

The optimal solution to this problem requires the following:


Taxi A picks up Customer

Taxi B picks up Customer

Taxi C picks up Customer

Taxi D picks up Customer

Taxi E picks up Customer

Taxi F picks up Customer

Taxi G picks up Customer

Taxi H picks up Customer

Minimum Cost =

Hint: Your cost should be between 33 and 39

A 14.0 m uniform ladder weighing 490 N rests against a frictionless wall. The ladder makes a 59.0°-angle with the horizontal. (a) Find the horizontal and vertical forces (in N) the ground exerts on the base of the ladder when an 810-N firefighter has climbed 4.10 m along the ladder from the bottom. horizontal force magnitude N direction vertical force magnitude N direction (b) If the ladder is just on the verge of slipping when the firefighter is 9.40 m from the bottom, what is the coefficient of static friction between ladder and ground? (c) What If? If oil is spilled on the ground, causing the coefficient of static friction to drop to half the value found in part (b), what is the maximum distance (in m) the firefighter can climb along the ladder from the bottom before the ladder slips?

m

You are considering two independent projects that have differing requirements. Project A has a required return of 12 percent compared to Project B's required return of 13.5 percent. Project A costs $75,000 and has cash flows of $21,000, $49,000, and $12,000 for Years 1 to 3, respectively. Project B has an initial cost of $70,000 and cash flows of $15,000, $18,000, and $41,000 for Years 1 to 3, respectively. Based on the NPV, you should:

• 10.7 When people make estimates, they are influenced by anchors to their estimates. A study was conducted in which students were asked to estimate the number of calories in a cheeseburger. One group was asked to do this after thinking about a calorie-laden cheesecake. A second group was asked to do this after thinking about an organic fruit salad. The mean number of calories estimated in a cheeseburger was 780 for the group that thought about the cheesecake and 1,041 for the group that thought about the organic fruit salad. (Data extracted from “Drilling Down, Sizing Up a Cheeseburger's Caloric Heft,” The New York Times, October 4, 2010, p. B2.) Suppose that the study was based on a sample of 20 people who thought about the cheesecake first and 20 people who thought about the organic fruit salad first, and the standard deviation of the number of calories in the cheeseburger was 128 for the people who thought about the cheesecake first and 140 for the people who thought about the organic fruit salad first.

• a. State the null and alternative hypotheses if you want to determine whether the mean estimated number of calories in the cheeseburger is lower for the people who thought about the cheesecake first than for the people who thought about the organic fruit salad first.

• b. In the context of this study, what is the meaning of the Type I error?

• c. In the context of this study, what is the meaning of the Type II error?

• d. At the 0.01 level of significance, is there evidence that the mean estimated number of calories in the cheeseburger is lower for the people who thought about the cheesecake first than for the people who thought about the organic fruit salad first?

SHOW EXCEL FUNCTIONS USED TO ANSWER.

Trace the execution of the following program assuming the input stream contains the numbers 10, 3, and 14.3. Use a table that shows the value of each variable at each step. Also show the output (exactly as it would be printed)

// FILE: Trace.java // PURPOSE: An exercise in tracing a program and understanding // assignment statements and expressions. import java.util.Scanner; public class Trace { public static void main (String[] args) { int one, two, three; double what; Scanner scan = new Scanner(System.in); System.out.print ("Enter two integers: "); one = scan.nextInt(); two = scan.nextInt(); System.out.print("Enter a floating point number: "); what = scan.nextDouble() ; three = 4 * one + 5 * two; two = 2 * one; System.out.println ("one " + two + ":" + three); one = 46 / 5 * 2 + 19 % 4; three = one + two; what = (what + 2.5) / 2 ; System.out.println (what + " is what!"); } }

A school psychologist wishes to determine whether a new antismoking film actually reduces the daily consumption of cigarettes by teenage smokers. The mean daily cigarette consumption is calculated for each eight teenage smokers during the month before and the month after the film presentation, with the following results:

MEAN DAILY CIGARETTE CONSUMPTION

(Note: when deciding on the form of the alternative hypothesis, H1, remember that a positive difference score (D=X1-X2) reflects a decline in cigarette consumption.)

Using t, test the null hypothesis at the .05 level of significance.

A)What is the research problem in this scenario?

B)Which of the following is the appropriate pair of statistical hypotheses for this study?

C)Compute the degrees of freedom for this scenario.

D)What is the decision rule in this scenario?

E)Calculate the value of the t test.

F)What is the decision about the null hypothesis in this scenario?

H)What is the interpretation in this scenario?

I)If appropriate (because the null hypothesis was rejected), construct a 95 percent confidence interval for the true population mean for all difference scores and use Cohen’s d to obtain a standardized of the effect size. Lower bound, upper bound, or 0 if null hypothesis is retained

J)Enter the estimate of the standardized effect size (Cohen’s d).

K)What might be done to improve the design of this experiment?

How do operations management terminology like operations strategy, planning, organizational management, capacity, productivity, throughput, time, efficiency, technology, human resources, other resources, costs, backlogs, bottlenecks, quality, and supply chains relate to Covid19 testing?

in java

Write a contacts database program that presents the user with a menu that allows the user to select between the following options:

• Save a contact.
• Search for a contact.
• Print all contacts out to the screen.
• Quit

If the user selects the first option, the user is prompted to enter a person's name and phone number which will get saved at the end of a file named contacts.txt.
If the user selects the second option, the program prompts the user asking for the name of the contact. It then searches the contacts.txt for a matching name. If found, it displays the phone number on the screen. If not found, it will display an appropriate error message.
If the user selects the third option, the program displays all contacts stored in contacts.txt in a neat table.
The program is menu driven and will repeat presenting the menu and processing choices until the user selects the fourth option to quit.
If the user selects an invalid option, an appropriate error message should be displayed.
If the user selects to print all contacts to the screen with no stored contacts, an appropriate error message should be displayed.

You may use message dialogs or make it a purely console-based application

MATCHING!

Assignment Scenario:

The Vice President of Human Resources for the international position you pretended to apply for in the International Job Search experiential exercise is trying to determine the appropriate compensation for the job. Based on the key components of an international compensation program mentioned in your textbook, you are being asked to develop a compensation package for the position you pretended to apply for. Explain the rationale for your design. Your recommendations must include numerical data, percentages, etc. based on the text and research, and must include your response to the following instructions:

1. a) Identify and describe the compensation approach you believe is best for the position you have applied for? (Going Rate Approach or the Balance Sheet Approach) b) Keeping the international firm’s location in mind, detail the advantages and disadvantages of this approach as they relate to the position you applied for.

1. a) How much of a base salary will you propose for the position? b) What percentage of base salary will the inducement comprise?  Be specific – express the computations in percentage (%) and in the currency amounts (Pesos, Euros, Etc.) from the region for which you have applied.

differences between cyberterrorists, hacktivists and state-sponsored attackers. Which would you consider to be more dangerous to a corporate network, and why? Which would be more dangerous to a government network, and why?