Mr. Scott, a 40-year-old millwright, presented with an 8-month history of voice difficulty. His dysphonia began after anterior-approach cervical disk surgery. He could not return to work because his co-workers could not hear him in the noisy work environment. The SLP observed he occasionally coughed and choked after swallowing and had to clear his throat frequently. Speech and oral mechanism examination were normal except for markedly breathy-hoarse voice, moderately decreased loudness, and short phrases. He could sustain “ah” and “z” for only 2 seconds but sustained “s” for 12 seconds. His cough and glottal coup were markedly weak. There was no palatal asymmetry, the palate was mobile, and the gag was normal. What type of dysarthria do you suspect?

You are an Organization Design Strategist at Hardcastle Cement Company, Inc.  Over the last 18 months, the company has experienced a spike in work-related accidents. Despite communication and training efforts, people seem to be circumventing safety protocols, and it is resulting in some serious accidents.  Mr. Hardcastle has asked for your advice on how to evolve the company culture to one that values safety above everything else.  Drawing from the four culture maintenance levers discussed in class (and the textbook), describe two specific actions Hardcastle Cement could take to help evolve the company to a “Safety First” culture.  For each action, name the lever you are using and describe the action consistent with that lever that you believe will help shape the new culture.

Write the chemical formulas for the following compounds or ions. (a) hypochlorite ion; (b) tetraphosphorus hexasulfide; (c) strontium cyanide; (d) hydrobromic acid.

Use the standard enthalpies of formation from your handout to calculate ΔH for the reaction: CH4(g) + 4 Cl2(g) → CCl4(g) + 4 HCl(g).

A 6.35 L sample of carbon monoxide is at 55 °C and 0.892 atm. What volume will the gas occupy at 1.05 atm and 20 °C?

A 15.0 g sample of nickel metal is heated to 100.0 °C and dropped into 55.0 g of water initially at 23.0 °C. Assuming all heat lost by nickel is absorbed by water, calculate the final temperature of the nickel and water. (c_Ni = 0.444 J g^−1 °C^−1).

Use  your handout to calculate ΔS and ΔG for: CH4(g) + 4 Cl2(g) → CCl4(g) + 4 HCl(g).

. How many grams of magnesium are required to produce 5.000 kg of Si? SiCl4 + 2Mg → Si + 2MgCl2. 

The process that occurs when beams of light are scattered from a regular array of points in which the spacing between the components is comparable with the wavelength of the light is known as: 

Name the following compounds. (a) Fe3(PO4)2; (b) HCN; (c) MnBr7.