A buffer solution contains 0.72 mol of hydrosulfuric acid (H2S) and 0.70 mol of sodium hydrogen sulfide (NaHS) in 8.60 L. The Ka of hydrosulfuric acid (H2S) is Ka = 9.5e-08.

(a) What is the pH of this buffer?

pH =

(b) What is the pH of the buffer after the addition of 0.17 mol of NaOH? (assume no volume change)

pH =

(c) What is the pH of the original buffer after the addition of 0.53 mol of HI? (assume no volume change)

pH =

describe the difference between the different theories of the social problems as well as different types of social movement

How does the cloud consumer interact with the appropriate systems to
gain access to the required services. What different portals help the
consumer to achieve this?

JAVA Using the java.util.Calendar class, create 3 dates and times. Write a method to identify and print out the oldest of the 3 timestamps. Likewise, create another method that prints out the most recent time.

The arrangement in the drawing shows a block (mass = 15.2 kg) that is held in position on a frictionless incline by a cord (length = 0.580 m). The mass per unit length of the cord is 1.28 × 10-2 kg/m, so the mass of the cord is negligible compared to the mass of the block. The cord is being vibrated at a frequency of 150 Hz (vibration source not shown in the drawing). What is the smallest angle θ between 15.0 ° and 90.0 ° at which a standing wave exists on the cord?

An object is undergoing uniform circular motion. True or False: A graph of its position oscillates back and forth, but not with simple harmonic motion.

A.) True

B.) False

Examine computer-assisted tools and techniques for the auditing process to examine effective controls. How do these tools help IT managers maintain systems operations? How do the tools and techniques support the internal and external auditing process?

Very large accelerations can injure the body, especially if they last for a considerable length of time. One model used to gauge the likelihood of injury is the severity index ( ?? ), defined as ??=?5/2? . In the expression, ? is the duration of the accleration, but ? is not equal to the acceleration. Rather, ? is a dimensionless constant that equals the number of multiples of ? that the acceleration is equal to. In one set of studies of rear-end collisions, a person's velocity increases by 12.5 km/h with an acceleration of 35.5 m/s2 . Let the +? direction point in the direction the car is traveling. What is the severity index for the collision? ??= How far ? does the person travel during the collision if the car was initially moving forward at 5.70 km/h ? ?= m

On January 2, 2018, Athol Company bought a machine for use in operations. The machine has an estimated useful life of eight years and an estimated residual value of $1,500. The company provided the following information:

1. Invoice price of the machine, $73,150.
2. Freight paid by the vendor per sales agreement, $770.
3. Installation costs, $1,670 cash.
4. Cost of cleaning up the supplies, boxes, and other garbage that remained after the installation of the machine, $80 cash.
5. Payment of the machine's price was made as follows:

January 2:

• Issued 1,080 common shares of Athol Company at $5 per share.
• Signed a $42,000 note payable due April 16, 2018, plus 12 percent interest.
• Balance of the invoice price to be paid in cash. The invoice allows for a 2 percent cash discount if the cash payment is made by January 11.

January 15: Paid the balance of the invoice price in cash.

April 16: Paid the note payable and interest in cash.

6. On June 30, 2020, the company completed the replacement of a major part of the machine that cost $12,350. This expenditure is expected to reduce the machine’s operating costs, increase its estimated useful life by two years, and decrease its estimated residual value to $1,000.
7. Assume that on October 1, 2025, the company decided to replace the machine with a newer, more efficient model. It then sold the machine to Sako Ltd. on that date for $25,400 cash.

1. Compute the acquisition cost of the machine.

2. Prepare the journal entries to record the purchase of the machine and subsequent cash payments on January 15 and April 16, 2018. (Do not round intermediate calculations and round your final answers to the nearest dollar amount. If no entry is required for a transaction/event, select "No journal entry required" in the first account field.)

January 2, 2018: Record purchase of machine by issuing shares, signing a note and the balance on account.

January 2, 2018: Record payment of machine installation costs.

January 15, 2018: Record payment made after discount period.

April 16, 2018: Record payment of note and interest

3. Compute the depreciation expense for each of the years 2018, 2019, and 2020, assuming the company’s fiscal year ends on December 31. Use the straight-line depreciation method. (Do not round intermediate calculations and round your final answers to the nearest dollar amount.)

4. Prepare the journal entry to record the sale of the machine on October 1, 2025. (Hint: First determine the balance of the accumulated depreciation account on that date.) (Do not round intermediate calculations and round your final answers to the nearest dollar amount. If no entry is required for a transaction/event, select "No journal entry required" in the first account field.)

Do you believe schools are still necessary? How about colleges and universities.

3. B.F Skinner looked at the relationship between motivation and the
environment and how we interact with others at work. Reinforcement
theory, discuss the four types of reinforcement and give examples.

How can a firm use a cumulative expenditures curve--illustrating the firm's HISTORICAL pattern of product development costs--to guide/improve its future development efforts? (5 points)

try to find articles that deal with Active Directory Group Policies. Find articles that discuss the proper configurations or what happens when inherent policies override permissions.

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