Dimethylamine, (CH3)2NH, is an organic base with pKb= 3.23at 298 K. In an experiment, a 40.0 mL sample of 0.105mol/L-1(CH3)2NH(aq)is titrated with 0.150mol/L-11HI(aq)at 298 K.

(a) Write a balanced chemical equation for the neutralization reaction upon which this titration is based, and indicate clearly which atom is being protonated. Then, calculate the equilibrium constant for the neutralization reaction. (Hint: To calculate the equilibrium constant, you may find it helpful to represent the neutralization reaction as the sum of twoor morereactions.)

(b) Calculate the pH, [(CH3)2NH], and[(CH3)2NH2+] at the following stages of the titration. Justify any approximations.

i) before the addition of any HI solution

ii) after the addition of 20.0 mL of HI solution

iii) at the equivalence point

iv) after the addition of 60.0 mL of HI solution

The Campbell Company is considering adding a robotic paint sprayer to its production line. The sprayer's base price is $1,180,000, and it would cost another $20,500 to install it. The machine falls into the MACRS 3-year class (the applicable MACRS depreciation rates are 33.33%, 44.45%, 14.81%, and 7.41%), and it would be sold after 3 years for $534,000. The machine would require an increase in net working capital (inventory) of $17,000. The sprayer would not change revenues, but it is expected to save the firm $476,000 per year in before-tax operating costs, mainly labor. Campbell's marginal tax rate is 40%.

What are the net operating cash flows in Years 1, 2, and 3?

What is the additional Year 3 cash flow (i.e, the after-tax salvage and the return of working capital)?

If the project's cost of capital is 12 %, what is the NPV of the project?

Bilbo Baggins wants to save money to meet three objectives. First, he would like to be able to retire 30 years from now with retirement income of $24,000 per month for 30 years, with the first payment received 30 years and 1 month from now. Second, he would like to purchase a cabin in Rivendell in 10 years at an estimated cost of $253,000. Third, after he passes on at the end of the 30 years of withdrawals, he would like to leave an inheritance of $800,000 to his nephew Frodo. He can afford to save $1,500 per month for the next 10 years. Required: If he can earn a 11 percent EAR before he retires and a 9 percent EAR after he retires, how much will he have to save each month in years 11 through 30?

In organic chemistry lab we just completled a "Lidocaine Synthesis". I have some questions to clarify before we take the in class exam.

1. Based on apperence and melting point; how can we validate if the crystals are pure lidocaine?

2. When using the seperatory funnel in extraction, we washed the organic layer with water and would shake then drain the aqueous layer out. After a couple of washes with water, we then use HCL to extract and collect this aqueous layer seperatley. Following the extraction with HCL we then again washed the organic solution with water. Any of the washes with water were collected then combined at the end of using seperatory apparatus. Why would we wash the oganic layer with water again after using HCL? Does it yeild more product?

3. What compund were we dissolving in the aquoues extract?

Bilbo Baggins wants to save money to meet three objectives. First, he would like to be able to retire 30 years from now with a retirement income of $27,000 per month for 20 years, with the first payment received 30 years and 1 month from now. Second, he would like to purchase a cabin in Rivendell in 10 years at an estimated cost of $350,000. Third, after he passes on at the end of the 20 years of withdrawals, he would like to leave an inheritance of $1,150,000 to his nephew Frodo. He can afford to save $2,700 per month for the next 10 years. If he can earn an EAR of 10 percent before he retires and an EAR of 7 percent after he retires, how much will he have to save each month in Years 11 through 30

The financial crisis compelled banks to reduce their leverage sharply.   Consider the following two views of the balance sheet of a bank before and after the financial crisis.

Calculate the leverage ratios for each view.

Instructions: Enter your responses rounded to two decimal places.

View 1: Leverage ratio =

View 2: Leverage ratio =

Which balance sheet view is more likely to be that of the bank after the financial crisis?

• View 2

• View 1

Acme Inc. may replace an old machine with a new, more efficient model. The old machine was purchased 5 years ago for $96,000. It is being depreciated over 8 years to zero book value using the straight-line method. Its current book value is $36,000. Its current market value is $30,000. The new machine costs $180,000. It will be depreciated over 6 years to zero book value using the straight-line method. After its useful life of 10 years it is expected to have a scrap value of $50,000. The new machine will increase Earnings before Depreciation and Taxes by $40,000 per year for 10 years. The company’s tax rate is 30% and the appropriate discount rate for this project is 10%. List all 11 after-tax cash flows for this project (0 is the initial investment). Compute the NPV. Compute the IRR and payback.

Mercer Corp. has 10 million shares outstanding and ​$147 million worth of debt outstanding. Its current share price is $63. ​Mercer's equity cost of capital is 8.5%. Mercer has just announced that it will issue ​$300 million worth of debt. It will use the proceeds from this debt to pay off its existing​ debt, and use the remaining ​$153 million to pay an immediate dividend. Assume perfect capital markets.

a. Estimate​ Mercer's share price just after the recapitalization is​ announced, but before the transaction occurs.

b. Estimate​ Mercer's share price at the conclusion of the transaction. ​(Hint​: Use the market value balance​ sheet.)

c. Suppose​ Mercer's existing debt was​ risk-free with a 4.64% expected​ return, and its new debt is risky with a 5.03%expected return. Estimate​ Mercer's equity cost of capital after the transaction.

Bilbo Baggins wants to save money to meet three objectives. First, he would like to be able to retire 30 years from now with a retirement income of $32,500 per month for 20 years, with the first payment received 30 years and 1 month from now. Second, he would like to purchase a cabin in Rivendell in 10 years at an estimated cost of $405,000. Third, after he passes on at the end of the 20 years of withdrawals, he would like to leave an inheritance of $825,000 to his nephew Frodo. He can afford to save $3,800 per month for the next 10 years. If he can earn an EAR of 10 percent before he retires and an EAR of 7 percent after he retires, how much will he have to save each month in Years 11 through 30

Bilbo Baggins wants to save money to meet three objectives. First, he would like to be able to retire 30 years from now with a retirement income of $30,500 per month for 20 years, with the first payment received 30 years and 1 month from now. Second, he would like to purchase a cabin in Rivendell in 10 years at an estimated cost of $385,000. Third, after he passes on at the end of the 20 years of withdrawals, he would like to leave an inheritance of $925,000 to his nephew Frodo. He can afford to save $3,400 per month for the next 10 years. If he can earn an EAR of 10 percent before he retires and an EAR of 7 percent after he retires, how much will he have to save each month in Years 11 through 30?