How is the seasonal cycle different in the Northern Hemisphere versus the Southern hemisphere and how does this affect levels in CO2?

A 360.0?mL buffer solution is 0.160M in HFand 0.160M in NaF.

What mass of NaOH could this buffer neutralize before the pH rises above 4.00?

If the same volume of the buffer was 0.370M in HF and 0.370M in NaF, what mass of NaOHcould be handled before the pH rises above 4.00?

Lenitnes Company is considering an investment in technology to improve its operations. The investment will require an initial outlay of $265,000 and will yield the following expected cash flows. Management requires investments to have a payback period of 3 years, and it requires a 10% return on its investments. (PV of $1, FV of $1, PVA of $1, and FVA of $1) (Use appropriate factor(s) from the table provided.)

Required:
1. Determine the payback period for this investment.
2. Determine the break-even time for this investment.
3. Determine the net present value for this investment.

cause and effect argumentation essay on alcoholism

Titration Curve of unknown Acid

Molarity of NaOH =.172

1. Your unknown acid is one of the following: oxalic acid (H2C2O4*2H20, pKa1=1.27, pKa2=4.27), citraconic acid (C5H6O4, pKa1=2.29, pKa2=6.15), or Maleic Acid (C4H4O4, pKa1=1.92, pKa2=6.09). These acids are classified as diprotic. Calculate the molar mass for your acid using the average mass from trials 1 and 2 and the average volume at the first equivalence point; then redo the calculation using the average mass from trials 1 and 2 and the average volume at the second equivalence point.

2. Using the average molar mass at the second equivalence point that you calculated in question 1, and your average values of pKa1 and pKa2, indentifiy your unknown acid. Explain.

A laser used in LASIK eye surgery produces 55 pulses per second. The wavelength is 193 nm (in air), and each pulse lasts 10.0 ps. The average power emitted by the laser is 120.0 mW and the beam diameter is 0.80 mm.

(a) What is the total energy of a single pulse? mJ

(b) What is the intensity during a pulse? W/m2

Choose a company. Use that company's operations to give three (3) examples of possible accounts receivable customers, and three (3) examples of possible makers of notes receivables in that company.

Describe what a periodic phenomenon is,and what is Period and frequency.

Emma has provided to you a listing of the transactions she has undertaken throughout the financial year to assist you in completing her 2015 income tax return. Sale of a block of land for $1,000,000: Emma purchased the land as an investment in 1991. The purchase price was $250,000, plus $5,000 in stamp duty, $10,000 in legal fees. To fund the purchase, she took out a loan on which she paid interest totalling $32,000. During the period of ownership her council rates, water rates and insurance totalled $22,000. In January 2005 a dispute occurred with a neighbour over the use of the land and legal fees incurred amounted to $5,000 in resolving this dispute. Before putting the property on the market $27,500 was spent to remove a number of large dangerous pine trees that were on the land. Advertising, legal fees and agent’s fees on the sale of the land were $25,000. Sale of Emma’s 1000 shares in Rio Tinto for $50.85 per share: Emma paid brokerage fee of 2% on the sale. Emma initially purchased the shares for $3.5 per share in 1982. Sale of a stamp collection Emma had purchased, from a private collector, in January 2015 for $60,000: Emma sold the collection at auction for $50,000. Auction fees totalled $5,000 for the sale. Sale of a grand piano for $30,000: It was initially bought for $80,000 in 2000. HI6028 Taxation Theory, Practice and Law Individual Assignment T2.2019 5 Advise Emma of the capital gain tax (CGT) consequences of her transitions. Ignore indexation. Your answer must include references to relevant tax law and or cases.

Prepare a 2.00 L of a 2.00 M buffer of pH 4.35. You can use citric acid (pka 3.09, 192.1 g/mol) and NaOH (10.0 M). Calculate how much of each reagent (and water) to make the buffer (show work).

The answers are:

Citric acid: 786 g, NaOH: 514 mL, water: 1.486 L

How do you get to these results?

Consolidated Worksheet and Balance Sheet on the Acquisition Date (Equity Method)Consolidated Worksheet and Balance Sheet on the Acquisition Date (Equity Method) Peanut Company acquired 90 percent of Snoopy Company's outstanding common stock for $270,000 on January 1, 20X8, when the book value of Snoopy's net assets was equal to $300,000. Peanut uses the equity method to account for investments. Trial balance data for Peanut and Snoopy as of January 1, 20X8, are as follows:

Peanut Company Snoopy Company

Assets  

Cash 55,000 20,000   

Accounts Receivable 50,000 30,000  

 Inventory 100,000 60,000   

Investment in Snoopy Stock 270,000  

 Land 225,000 100,000   

Buildings & Equipment 700,000 200,000   

Accumulated Depreciation  (400,000)  (10,000)

Total Assets 1,000,000 400,000

Liabilities & Stockholders' Equity   

Accounts Payable 75,000 25,000   

Bonds Payable 200,000 75,000   

Common Stock 500,000 200,000   

Retained Earnings  225,000 100,000

Total Liabilities & Equity 1,000,000 400,000

Required: Prepare the journal entry on Peanut's books for the acquisition of Snoopy on January 1, 20X8.

Prepare a consolidation worksheet on the acquisition date, January 1, 20X8, in good form.

Prepare a consolidated balance sheet on the acquisition date, January 1, 20X8, in good form.

For 530.0 mL of a buffer solution that is 0.155 M in CH3CH2NH2 and 0.145 M in CH3CH2NH3Cl, calculate the initial pH and the final pH after adding 0.020 mol of HCl.

the previous one I saw it, I wonder how to do the last one.

Read carefully
See the photo of the algorithm below after reading these instructions: write a program in Python 3 which uses a list. Your program will use a list to store the names and exam scores of students. The program starts by asking how many results will be entered. Then a loop will be used to enter the name and score for each student. As each name and score is entered it is appended to a list (which was initially empty). When the loop is finished (i.e. all scores are entered) the program ends by printing the list.

Make a copy of your Lab6A.py file to Lab6B.py. Amend the comments accordingly for these instructions. Send the list you created in Lab 6A to a function which returns a list of names of all above average students.

A population of values has a normal distribution with μ=99.5 and σ=83.2. You intend to draw a random sample of size n=197. Please answer the following questions, and show your answers to 1 decimal place.

Find P77, which is the value (X) separating the bottom 77% values from the top 23% values. P77 (for population) =

Find P77, which is the sample mean (¯x) separating the bottom 77% sample means from the top 23% sample means. P77 (for sample means) =

Evaluate the effect of each shock below using first the classical model and second the Keynesian model. For the Classical model, include graphs of the goods market, the labor market, and the money market. For the Keynesian model, include an IS-LM-FE graph, an Aggregate Supply – Aggregate Demand graph, and a graph of labor market equilibrium with efficiency wages. For the Keynesian model, include short-run effects, while the price is constant, and long run effects after the price has fully adjusted.

1. There is a permanent increase in the money supply.
2. There is an increase in expected future productivity (the z in the production function).
3. There is an increase in government spending financed by an increase in expected future taxes.
4. There is an increase in the price of oil which reduces total factor productivity (z).