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a. Location of Key: Enquire from the technicians as to who opens the laboratory. Does the lab staff have to take the keys from the office or do they have personal keys. (Also note how many keys are available for the lab and where they are located.)
b. Daily Duties Regarding Cleaning & Dusting
Enquire from the technicians as to who cleans the floors and dusts the equipment and also supervises this cleaning. During cleaning and dusting are there any precautions to be followed?
c. Daily Switching on and off of Lights and Equipment
Enquire who switches on the lights as well as equipment like distillation plants, ovens etc. in the morning and who switches them off in the evening before closing. In case of gas being used in the lab, find out if the main supply is switched off daily before the lab is closed. Also enquire:
i) if the main switch of the gas supply is located in the lab itself or elsewhere.
ii) if the technicians also know the location of mains for electricity and water supply as well as of the fire extinguisher
It is desired to concentrate a NaOH solution from 12.5 % to 40% in a double effect evaporator. 50,000 lb/hr of feed solution enters the evaporator at 120 o F, and steam at 15 psig
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An organic compound is found to contain 37.5% of C, 3.2% of H and 59.3% of F. The following pressure and volume data were obtained for 1.0g of this substance at 90 degrees celsius
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