sample
Haven't found the Essay You Want?
For Only $12.90/page

Celsius Essay Topics & Paper Examples

Recrystallization lab report

Given the following solubility test results, which would be the best recrystallization solvent for Compound A? Why? Ethanol: Cold – soluble; Hot – soluble Water:Cold – insoluble; Hot – soluble Benzene:Cold – insoluble; Hot – insoluble Water would be the best recrystallization solvent for Compound A, because when doing recrystallization, it is important that the compound be very soluble at the boiling point, and hardly soluble at room temperature. If it were insoluble in hot temperatures the compound would not dissolve, where as if it was soluble in cold, crystillization would be a very unlikely process. To note, impurities should on the other hand be very soluble at room temperature and insoluble in hot solvent in order to be filtered…

Water short essay

‘Water’ is one of the natures precious gifts to mankind. All living things consist mostly of water eg. the human body is of two thirds of water. It is clear, colourless liquid that appears blue when viewed through a thickness of 20 ft. The colour reflects not only from physical causes but also from suspended impurities. The freezing point of water is 0degree centigrade and its boiling point is 100 degree centigrade. Water is the most essential component of life and is vital for sustenance. The importance of water in our diet is apparent as it helps the body to perform specific metabolic tasks and regulates our body temperature, moreover water is unique as it’s density is similar to that…

Audible Thermometer

The objective of our project was to build a Independent audible thermometer, which can speak the body temperature of a person. Our original goal was to build both software and hardware setup of the audible thermometer. We have already finished the software setup and we are currently working on the hardware, which we couldn’t complete because the budget was pretty heavy for us. So, we’ve built a setup which can speak a person’s body temperature using the sensor and a computer. CHAPTER 2 This chapter should give the essential back-ground Theory on the subject of the project and essential derivations or the like. CHAPTER 3 This chapter should normally cover design / programming methodologies or other approaches suggested in the…

Enzyme Activity Lab

Hypothesis: 1) If the disk is placed into each beaker with 100 units/ml of enzyme solution, then the time for the disk to float will be 30 seconds. 2) If the temperature of the solution is at 5 degrees Celsius, then there will be less enzymes binding to the active site, and if temperature is at 37 degrees Celsius, then the reaction rate of the enzymes will be 3 times the previous temperature’s reaction rate. 3) If the disk placed into each beaker of the substrate, then the time for the disk to float will take longer, like 1-2 minutes. Discussion/Analysis: 1) How does enzyme activity vary with enzyme concentration? The rate of enzyme activity increases as the enzyme concentration…

PRODUCTION OPERATIONS & MANUFACTURING PROCESSES OF LABSA

Sulphonation – The Process Most electrophilic substitution reactions are irreversible but sulfonation is an exception. Treatment of benzene with “oleum” (a solution of SO3 in concentrated sulfuric acid) will give the sulfonic acid, the electrophilic species being sulfur trioxide which is Lewis acidic. Fig – 1 Sulphonation : Benzene equation The sulfonic acid can be converted back by treatment with hot aqueous acid. The reason for this reversibility is the fact that the Wheland intermediate is overall neutral and therefore more stable than other, positively charged intermediates. Hence, under forcing reaction conditions, the energy difference in progressing in either the forward or backward sense from the Wheland intermediate is proportionately smaller compared to the barrier to activation and hence discrimination…