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Assignment:
Question 1: Use the NIOSH Exposure Banding - Tier One method to band the following chemicals. Report their GHS information, and their recommended bands.
(1) Chemical Name: Butyraldehyde
(2) Chemical Name: 2-Methyl-2-Butene
Question 2: A worker is assigned to job that requires working 10 hours in a day. The worker is exposed to toluene. The TLV- TWA for toluene is 0 ppm. What is the adjusted TLV for this worker using the Brief and Scala method?
a chemist has isolated a new natural product and determined its molecular formula to be c24h40o4. in hydrogenation
Aspirini has a density of 1.40 g/cm^3 what is the volume (in cubic centimeters) of an aspirin tablet weighing 2.8x10^2mg
the reaction below was allowed to proceed to equilibrium. thecontents of a 2 liter reaction vessel were then subjected
Since the sample is an unknown solid, I will have to make a solution without knowing exactly what to mix. In your expertise, how much of the solid do you expect to dissolve in what volume of water and what is your reasons for choosing these amount..
Question- What is the minimum volume of a solution that contains 0.743g of NaBH4 per 100.0 mL of solution that is required to fully reduce 0.943g of 3-methyl-1-phenyl-2-butanone (C11H14O). You may assume the reaction works ideally.
A bubble rises from the bottom of a lake of depth 90.0 m, where the temperature is 3° C. The water temperature at the surface is 18° C. If the bubble's initial diameter is 1.00 mm, what is its diameter when it reaches the surface
Sodium cyclamate, NaC6H12NSO3, was a popular nonsugar sweetener until it was banned by the Food and Drug Administration. Its sweetness is about 30 times that of sugar (or sucrose, C12H22O11).
Explain what mass of potassium hydroxide is necessary to prepare a 5 L stock solution of 0.8 M KOH
Most barium compounds are very poisonous; however, barium sulfate is often administered internally as an aid in the X-ray examination of the lower intestinal tr
Problem- During the hydration and purification of norbornene with sulfuric acid, one of the purification steps is a cold water extraction/wash. Methylene chloride and water are used as the immiscible solvents.
Compute the molar mass that would be obtained from the actual experimental data under the subsequent conditions. The unknown is methyl propyl ether (CH3OC3H7) which has a vapor pressure of 375.2torr at room temperature, 20C.
A reaction between methane and hydrogen sulfide to produce carbon disulfide and hydrogen gas was carried out. CH4 (g) + 2 H2S(g) → CS2 (g) + 4 H2 (g)
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