You are a studen in Organic Chemsitry lab and you are tasked with the job to make 202 ppm solution of Rhodamine B (MM = 479.02 g/mol). How many moles of dye do you need to add to a 250 mL beaker of water to prepare this solution?

A proud deep-sea fisherman hangs a 61.0-kg fish from an ideal spring having negligible mass. The fish stretches the spring 0.130 m.

(a) Find the force constant of the spring.
N/m

The fish is now pulled down 4.90 cm and released.

(b) What is the period of oscillation of the fish?
s

(c) What is the maximum speed it will reach?
m/s

The automobile fuel called E85 consists of 85 % ethanol and 15 % gasoline. E85 can be used in so-called "flex-fuel" vehicles (FFVs), which can use gasoline, ethanol, or a mix as fuels. Assume that gasoline consists of a mixture of octanes (different isomers of C8H18), that the average heat of combustion of C8H18(l) is 5400 kJ/mol, and that gasoline has an average density of 0.70 g/mL. The density of ethanol is 0.79 g/mL.

For Part A, start with the given L of gasoline and use the density of the gasoline as well as the molar mass of  C8H18 to determine the moles of gasoline. Once you have found the moles of gasoline you will use the provided heat of combustion to determine the energy produced. You do not need to use Appendix C because you are using the provided heat of combustion.

For Part B, do the same with the ethanol. You will use the heat of combustion for ethanol from the extra credit homework problem 5.79. If you did not do the that homework problem, you will need to write the balanced equation for the combustion of ethanol paying attention to the phases. Use the phase of gas for the water. Then calculate the heat of the combustion reaction from the heats of formation in Table C.

For Part C, you will need to use a weighted average. This is the same formula we used to determine the average atomic mass.

For Part D, you are starting with the given gallons of gasoline and will need to use the heat of combustion produced for the given liters of gasoline as a conversion factor to determine the energy produced from the given gallons. The heat of combustion produced from the liters of gasoline is from Part A. Now take the energy produced from the gallons of gas and use that as the given. Using the heat of combustion produced for the liters of E85 from Part C, determine the gallons of E85 necessary to produce that much energy.

For Part E, you will use the gallons of gasoline

A)By using the information given as well as data in Appendix C, calculate the energy produced by combustion of 2.0 L of gasoline

B)By using the information given as well as data in Appendix C, compare the energy produced by combustion of 2.0 L of ethanol. Consider that water is in the gaseous state.

c)Assume that the density and heat of combustion of E85 can be obtained by using 85 % of the values for ethanol and 15 % of the values for gasoline. How much energy could be released by the combustion of 2.0 L of E85?

E)If gasoline costs $ 3.10 per gallon in the United States, what is the break-even price per gallon of E85 if the same amount of energy is to be delivered?

1. Note: This problem is for the 2018 tax year.

Devon Bishop, age 45, is single. He lives at 1507 Rose Lane, Albuquerque, NM 87131. His Social Security number is 111-11-1112. Devon does not want $3 to go to the Presidential Election Campaign Fund.

Devon's wife, Ariane, passed away in 2014. Devon's son, Tom, who is age 18, resides with Devon. Tom's Social Security number is 123-45-6788.

Devon owns a sole proprietorship for which he uses the accrual method of accounting and maintains no inventory. His revenues and expenses for 2018 are as follows:

*New office equipment ($21,000); Devon uses the immediate expense election.

** $18,000 for employees and $8,000 for Devon.

Other income received by Devon includes the following:

During the year, Devon and his sole proprietorship had the following property transactions:

1. Sold Blue, Inc. stock for $45,000 on March 12, 2018. He had purchased the stock on September 5, 2015, for $50,000.
2. Received an inheritance of $300,000 from his uncle, Henry. Devon used $200,000 to purchase Green, Inc. stock on May 15, 2018, and invested $100,000 in Gold, Inc. stock on May 30, 2018.
3. Received Orange, Inc. stock worth $9,500 as a gift from his aunt, Jane, on June 17, 2018. Her adjusted basis for the stock was $5,000. No gift taxes were paid on the transfer. Jane had purchased the stock on April 1, 2012. Devon sold the stock on July 1, 2018, for $22,000.
4. On July 15, 2018, Devon sold one-half of the Green, Inc. stock for $40,000.
5. Devon was notified on August 1, 2018, that Yellow, Inc. stock he purchased from a colleague on September 1, 2017, for $52,500 had become worthless. While he perceived that the investment was risky, he did not anticipate that the corporation would declare bankruptcy.
6. On August 15, 2018, Devon received a parcel of land in Phoenix worth $220,000 in exchange for a parcel of land he owned in Tucson. Because the Tucson parcel was worth $245,000, he also received $25,000 cash. Devon's adjusted basis for the Tucson parcel was $210,000. He originally purchased it on September 18, 2015.
7. On December 1, 2018, Devon sold the condominium in which he had been living for the past 20 years (1844 Lighthouse Lane, Albuquerque, NM 87131) and moved into a rented townhouse. The sales price was $480,000, selling expenses were $28,500, and repair expenses related to the sale were $9,400. Devon purchased the condominium for $180,000.

Devon's potential itemized deductions, exclusive of the aforementioned information, are as follows:

During the year, Devon makes estimated Federal income tax payments of $35,000.

Required:

Compute Devon's lowest net tax payable or refund due for 2018 by providing the information requested for Forms 1040, 4562, 8824, and 8949 as well as Schedules A, B, D, SE. Assume that he makes any available elections that will reduce the tax.

• Make realistic assumptions about any missing data.
• If an amount is zero, enter "0".
• Enter all amounts as positive numbers.
• It may be necessary to provide information regarding the other schedules and forms before completing the requested information for Form 1040.
• Devon's qualified dividends and capital gains rate is 15%.

When computing the tax liability, do not round your immediate calculations. If required round your final answers to the nearest dollar.

Choose a stressor you are experiencing. Is it positive or negative? Ambient or cultural? Chronic, acute or anticipatory? Do you experience physical symptoms or other effects? What changes can you make to help you cope

A solution containing 28.60 mg of an unknown protein per 29.0 mL solution was found to have an osmotic pressure of 3.80 torr at 15 ∘C. What is the molar mass of the protein?

Please show details on how to get to the answer:

( 1 ) What were the critical historic events ( or policy changes ) that propelled ( changed ) the former "Communist China" into the "modern China" as we know it by now? ( From massive famine to World's #2 economy ).

Give specific examples ( events ).

Q5) Explain: A) why we see the sky is blue? B) why we see the Sun red at Sunset?

Q6) Explain: why when we rotate a polarized sun glasses looking at the reflection from a non-metallic surface, we can almost block all the reflection.

Suppose that in the same Atwood setup another string is attached to the bottom of m₁ and a constant force f is applied, retarding the upward motion of m₁. If m₁ = 5.70 kg and m₂ = 11.40 kg, what value of f will reduce the acceleration of the system by 50%?

6. Describe the general tissue structure that makes up the main body membranes. a). Describe the relationship of these tissues in the function and structure of serous and mucous membranes.

On January 1, 2021, M.T. Toombe Mausoleum granted restricted stock units (RSUs) representing 60 million of its $1 par common shares to executives, subject to forfeiture if employment is terminated within three years. After the recipients of the RSUs satisfy the vesting requirement, the company will distribute the shares. The common shares had a market price of $15 per share on the grant date. At the date of grant, Toombe anticipated that 5% of the recipients would leave the firm prior to vesting. In 2022, 3% of the options are forfeited due to executive turnover. Toombe chooses the option not to estimate forfeitures.


Required:
1. Prepare the appropriate journal entry to record compensation expense on December 31, 2021. Ignore taxes.

• Record the compensation expense on December 1, 2021 for award of restricted stock units (RSUs) representing 60 million of its $1 par common shares to executives, subject to forfeiture if employment is terminated within three years. The common shares had a market price of $15 per share on the grant date.Toombe anticipated that 5% of the recipients would leave the firm prior to vesting.

2. Prepare the appropriate journal entry to record compensation expense on December 31, 2022. Ignore taxes.

• Record the compensation expense on December 1, 2022 for award of restricted stock units (RSUs) representing 60 million of its $1 par common shares to executives, subject to forfeiture if employment is terminated within three years. The common shares had a market price of $15 per share on the grant date.Toombe anticipated that 5% of the recipients would leave the firm prior to vesting.

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 1.2 m/s2 for 4.3 seconds. It then continues at a constant speed for 11.2 seconds, before getting tired and slowing down with constant acceleration coming to rest 84 meters from where it started. The tortoise accelerates uniformly for the entire distance, finally catching the hare just as the hare comes to a stop. How fast is the hare going 1.7 seconds after it starts? How fast is the hare going 9.6 seconds after it starts? How far does the hare travel before it begins to slow down? What is the acceleration of the hare once it begins to slow down? What is the total time the hare is moving? What is the acceleration of the tortoise?

Report for Movie: The Matrix

What philosophical issues were addressed or raised in the book(s) and movie(s)? Give your points of view on these issues. (400 words or above)