1)

a) Prepare an EDTA solution by dissolving 0.1 g of magnesium chloride hexahydrate and 3.2g of EDTA in 1 L of water. Also prepare a standard calcium carbonate solution by weighing out 0.4 g of pure calcium carbonate and adding 500 mL of water and a few drops of 1:1 HCl:Water solution. Take 50mL aliquots of the standard calcium carbonate solution, add 10 mL of ammonia/ ammonia chloride buffer, and 5 drops of calmagite indicator, and titrate this with the EDTA solution. A color change occured when 47.8 mL, 48.2, and 49.0 mL of EDTA was added/ titrated to each aliquot. Determine the exact concentration of EDTA.

b) Weigh 0.18g of acid-soluble limestone and add 20 mL of 1:1 HCl:Water solution. Heat this solution to near dryness, add 10mL of 1:10 HCl: Water solution, and dilute to 100mL with water. Take a 50mL aliquot, add 5 mL of 10% hydroxylamine hydrochloride solution, 10 mL of ammonia/ ammonium chloride buffer and 5 mL of 5% potassium cyanide. Then add a few drops of calmagite indicator, and titrate with the same EDTA solution in part a. A color change occured when 50.0 mL, 48.7 mL, 49.5 mL, 49.2 mL of EDTA was added to each of these aliquots. Find the percentage of calcium carbonate in the unknown limestone sample.

Moody Corporation uses a job-order costing system with a plantwide predetermined overhead rate based on machine-hours. At the beginning of the year, the company made the following estimates:

Required:

1. Compute the plantwide predetermined overhead rate.

2. During the year, Job 400 was started and completed. The following information was available with respect to this job:

Compute the total manufacturing cost assigned to Job 400.

3. If Job 400 includes 60 units, what is the unit product cost for this job?

4. If Moody uses a markup percentage of 120% of its total manufacturing cost, then what selling price per unit would it have established for Job 400?

Problem 2-16 Plantwide Predetermined Overhead Rates; Pricing [LO2-1, LO2-2, LO2-3]

Landen Corporation uses a job-order costing system. At the beginning of the year, the company made the following estimates:

During the year, Job 550 was started and completed. The following information is available with respect to this job:

Required:

1. Assume that Landen has historically used a plantwide predetermined overhead rate with direct labor-hours as the allocation base. Under this approach:

a. Compute the plantwide predetermined overhead rate.

b. Compute the total manufacturing cost of Job 550.

c. If Landen uses a markup percentage of 200% of its total manufacturing cost, what selling price would it establish for Job 550?

2. Assume that Landen’s controller believes that machine-hours is a better allocation base than direct labor-hours. Under this approach:

a. Compute the plantwide predetermined overhead rate.

b. Compute the total manufacturing cost of Job 550.

c. If Landen uses a markup percentage of 200% of its total manufacturing cost, what selling price would it establish for Job 550?

Problem 2-18 Job-Order Costing for a Service Company [LO2-1, LO2-2, LO2-3]

Speedy Auto Repairs uses a job-order costing system. The company’s direct materials consist of replacement parts installed in customer vehicles, and its direct labor consists of the mechanics’ hourly wages. Speedy’s overhead costs include various items, such as the shop manager’s salary, depreciation of equipment, utilities, insurance, and magazine subscriptions and refreshments for the waiting room.

The company applies all of its overhead costs to jobs based on direct labor-hours. At the beginning of the year, it made the following estimates:

Required:

1. Compute the predetermined overhead rate.

2. During the year, Mr. Wilkes brought in his vehicle to replace his brakes, spark plugs, and tires. The following information was available with respect to his job:

Compute Mr. Wilkes’ total job cost.

3. If Speedy establishes its selling prices using a markup percentage of 60% of its total job cost, then how much would it have charged Mr. Wilkes?

Suppose Katie sells 1800 posters. Use the following financial data ($32 sales price, $27 variable​ cost, $2800 fixed​ expenses) to compute her operating leverage factor. If sales volume increases 12%, by what percent will Katie's operating income​ change? Prove your answer.

​First, identify the​ formula, then compute the operating leverage factor. ​(Round your answer to two decimal​ places.)

If sales volume increases 16% by what percent will Katie​'s operating income​ change? ​(Round the percentage change to one decimal​ place, X.X%)

Operating income will increase by --- %.

Prove your answer. ​(Round the percentage change to one decimal​ place, X.X%)

Explain the rise of the monocentric city with following 1. innovations in intracity transportation 2.technology of building construction 3.primitive technology of freight.

Compare the differences in the manufacture of Nd-YAG and Nd-glass lasers. Compare their laser power output characteristics and explain in terms of their construction features.

9. Where is the eukaryotic cellular site of transcription and translation?

10. What has to happen to a protein after construction but before it becomes functional?

The two major constraints that can hamper a construction project are time and resources. What actions can a project manager undertake to overcome these constraints?