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Question 1 One of the more difficult parts of a Job Hazard Analysis (JHA) is getting the right level of detail in the task steps. Select a task that someone in your family does at home routinely, and develop a list of steps that could be used in a JHA. What steps (if any) did you leave out? Discuss reasons for the steps you did, and did not, include.
Question 2 Suppose you are concerned about a particular task that was performed quarterly by a pair of electricians. You already have a JHA for the task. It has 12 steps, beginning with assembling the equipment they will need and obtaining a permit for a lockout/tagout procedure, and ending with putting away the equipment they used. Answer the following questions:
How would you describe the scope of your risk assessment project?
Aqueous solutions of chromium(III) chloride and lithium hydroxide react to give aqueous lithium chloride and a chromium(III) hydroxide precipitate.
which substance is the limiting reactant when 3.0g of sulfur trioxide (80.06 g/mol) react with 6.0 g of NaOH (40.00 g/mol) accordind to the following chemical equation SO33NaOH ->Na2SO4+H2O
granite rock has a specific heat capacity of 0.80 jmiddotdegc-1middotg-1. a 15 g rock was warmed by 202 j of energy
Two liquids, and , have vapor pressures at a given temperature of 24 and 36 , respectively. We prepare solutions of and at a given temperature and measure the total pressures above the solutions. We obtain the following data
has Kp = 45.9 at 763 K. A particular equilibrium mixture at that temperature contains gaseous HI at a partial pressure of 4.00 atm and hydrogen gas at a partial pressure of 0.273 atm. What is the partial pressure of I2?
Write out a step by step extraction to separate mixture of toluene, 4-methoxybenzoic acid, and benzylamine into pure compounds. All of the molecules are organic soluble in dichloromethane.
Because HCl and NaOH are a strong acid and base respectively, they dissociate completely and the pH of the solution is dependent only on the excess acid or base in the beaker at that point in the titration.
Write the equation showing the S-trans to S-cis equilibrium of the two conformations for a. (E)-1,3-pentadiene b. (Z)-1,3-pentadiene and which equilibrium will favor the s-tans conformation more strongly
A 20.00 mL sample of the standard KHP (KHC8H4O4) solution requires 24.16 mL of your base to reach the end point. Write the equation for the reaction.
A sample of sodium metal having a mass of 5.45 g reacts with excess water, and the water is later evaporated. What is the solid product that remains after evaporation, and how many grams of this product are expected to be formed
a 3.46 liter sample of a gas was collected over water on a day when the temperature was 21 degrees celsiusand the
the experiment utilized only metal-metal ion redoxcouples. is it possible to determine the srp for non-metalsand their
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