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BOS 3640 Unit I Assessment

BOS 3640 Unit I Assessment

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Identify which two of the following elements have chemical properties similar to those of magnesium.

The chemical formula of mustard gas may be reduced to C4H8SCl2. What is the molecular weight of mustard gas?

An emergency responder produces up to 1.575 L/hr of perspiration when strenuously exercising. How long must an emergency responder exercise to produce one quart of perspiration?

The maximum distance a person should be allowed to free fall when using a fall arrest system is six feet. In the metric system, this length is equivalent to?

The fuel used in some racing cars contains isoamyl nitrite. Select which one of the characteristics below is classified as a chemical change/property?

The spread of fire from the ground floor to an upper floor of a building is primarily due to heat transfer by __________ and __________.

The relative reactivity rating of a substance is denoted by a numeric code in the __________ quadrant of its NFPA hazard diamond.

Radon, which is a radioactive gas, is a member of the __________ gas family. Name one other element in this group or family: __________.

The Global Harmonization System of Classification and Labeling of Chemical Substances (GHS) was designed by the __________.

Aquatic toxicants in the Global Harmonization System of Classification and Labeling of Chemical Substances (GHS) are represented by the __________ pictogram.

The Global Harmonization System of Classification and Labeling of Chemical Substances (GHS) has been adopted by the Occupational Safety and Health Administration (OSHA) and the Department of Transportation (DOT).
Describe what GHS is.
In your opinion, what are the benefits and drawbacks of this system?
 
You are the project manager of an environmental company that was hired to cleanup a historical arsenic contamination site. Soil sampling results indicated the area impacted with arsenic above action levels is 30 feet by 55 feet. The depth of the arsenic plume is three feet below ground surface. The land owner wanted to clean this site for future development. Using your textbook, answer the questions below to help you prepare a cost estimate for this portion of the project. Your solutions and any assumptions to justify your estimate must be shown.
What is the chemical symbol of arsenic, and what group/family does it belong to?
Solve for the minimum volume of soil that will be excavated in cubic yards?
If each dump truck can transport 18 cubic yards, determine how many dump trucks loads will be transported? For calculation purposes, add a 15% “fluff factor” (add to the volume that will be transported).
If the bulk density of soil is 1350 kg/m3 (84.3 lb/ft3), solve for the weight of the soil that will be transported to a disposal site in kilograms?
Your total response to parts a-d must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced. Paraphrased and/or quoted material must have accompanying citations in APA format.


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