what is the pOH of a solution prepared by mixing 0.01 moles of HCL with 25.00 mL of 1.0 methylamine, CH3NH2, and with 15.00 mL of 1.0 M methylammonium chloride, CH3NH3CL? Assume that the volume of the solutions are additive and that Kb= 3.70 x 10^-4 for methylamine. You cant use the Henderson-Hasselbalch equation in solving this problem.

Calculate the ratio of the energy released by the complete fission of 1.0 kg of Uranium-235 to the energy released by burning 1.0 kg of methane, CH4. You can use the fact that one mole of CH4 gives 802 kJ of energy, and recall from your chemistry course that there are 6.02*1023 atoms per mole.

Calculate the ratio of the energy released by the complete fission of 1.0 kg of Uranium-235 to the energy released by burning 1.0 kg of methane, CH4. You can use the fact that one mole of CH4 gives 802 kJ of energy, and recall from your chemistry course that there are 6.02*1023 atoms per mole.

For the reaction shown, compute the theoretical yield of the product in grams for each of the following initial amounts of reactants. 2Al(s)+3Cl2(g)→2AlCl3(s)

A) 1.0 g Al; 1.0 g Cl₂

B) 5.5 g Al; 19.8 g Cl₂

C) 0.439 g Al; 2.29 g Cl₂

Calculate the ratio of the energy released by the complete fission of 1.0 kg of Uranium-235 to the energy released by burning 1.0 kg of methane, CH4. You can use the fact that one mole of CH4 gives 802 kJ of energy, and recall from your chemistry course that there are 6.02*1023 atoms per mole.

Determine the values required to prepare 50.0 mL of a solution that buffers at a pH of 4.74.

1. Volume of 0.10 M Acetic Acid needed?

2. Volume of 0.1 M sodium Acetate needed?

3. Volume of 1.0 M Acetic Acid needed?

4. Volume of 1.0 M Sodium Acetate needed?

Bob, Peter and Paul travel together. Peter and Paul are good hikers; each walks p miles per hour. Bob has a bad foot and drives a small car in which two people can ride, but not three; the car covers c miles per hour. The threee friends adopted the following scheme: They start together, Paul rides in the car with Bob, Peter walks. After a while, Bob drops Paul who walks on; Bob returns to pick up Peter, and then Bob and Peter ride in the car till they overtake paul. At this point, they change: Paul rides and Peter walks just as they started and the whole procedure is repeated as often as necessary.


A. How much progress (how many miles) does the company make per hour?

Marc Lusebrink, sole proprietor of Oak Company, bought a used automobile and drove it 13,326 miles for business during 2017 and a total (including business miles) of 16,250 miles. His total expenses for his automobile for the year are:

The automobile cost $15,000 on January 1, and depreciation expense for the year, including business use, was $3,000. His business parking and toll fees for business amount to $327.

Calculate Marc's transportation expense deduction for the year under each method listed below.

Round business use to the nearest whole percentage. If required, round your answers to the nearest dollar.

Standard Mileage Method: $

Actual Cost Method:

Your small remodeling business has two work vehicles. One is a small passenger car used for job-site visits and for other general business purposes. The other is a heavy truck used to haul equipment. The car gets 25 miles per gallon (mpg). The truck gets 10 mpg. You want to improve gas mileage to save money, and you have enough money to upgrade one vehicle. The upgrade cost will be the same for both vehicles. An upgraded car will get 40 mpg; an upgraded truck will get 12.5 mpg. The cost of gasoline is $3.70 per gallon.

Suppose you drive the truck 12,000 miles per year. How many miles would you have to drive the car before upgrading the car would be the better choice?