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What is a chemical or biological hazard that is present at a facility or familiar with?
What are the properties of the hazard that would affect the exposure potential in an occupational setting?
What are the potential health effects associated with the hazard?
How would one go about ensuring that the health effects on the facility were properly mitigated as an industrial hygienist or safety officer?
Americium-241 is used in smoke detectors. It has a rate constant for radioactive decay of k = 1.6x10-3yr-1. What is the half-life of this isotope in years? Give your answer to 3 significant figures.
A technologist treats the sample with 100 mL of 0.1550M Na2C2O4. Calculate [Ca^2+] after the treatment. (CaC2O4*H2O Ksp = 2.30*10^-9)
How many grams of product result from the following reactions, and how many grams of which reactant are left over
You put your arm around the persons waist and use your fist to push up on the persons abdomen, an action called the Heimlich maneuver. a) How would this action change the volume of the chest and lungs? b) Why does it cause the person to expel the ..
Transcription, translation, replication, synthesis of phospholipids, or do they all require energy?- Which of these processes does not require energy input?
A gaseous oxide of nitrogen has an empirical formula of NO2. A 0.556 g sample of this gas in a 250. mL container at 24ºC exerts a pressure of 44.8 cm Hg. What is the molecular weight of the gas? What is the molecular formula of the gas
A dancehall contains 173 men and 238 women. A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women. a)How many groups could be formed? b) which sex is in excess? By how much? (show calculation..
a compound containing sulfur nitrogen and hydrogen has 86.6 sulfur 12.6 nitrogen and 0.91 hydrogen. a 1.263-g sample of
A chemistry student needs of 40 ml chloroform for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of chloroform is 1.48g x cm^-3 . Calculate the mass of chloroform the student should w..
What must be the angle between the polarizing directions of the sheets if the intensity of the transmitted light is to be one-third the incident intensity?
To what volume should you dilute 59.5ml of a 4.95M KI solution so that 26.0ml of the diluted solution contains 3.45g of KI
The mass of a liquid that occupies 15.5 mL is found to be 22.35 g. What is the density of the liquid
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