Vacuum

Copper/Iron Stoichiometry lab was to determine which of the two possible iron sulfate compounds formed when reacting aqueous copper(II)sulfate with solid iron metal. The techniques used in this lab were weighing by difference, quantitative transfer, and vacuum filtration. At the end of the experiment it was found that iron was the limiting reactant and iron(II)sulfate was a product of the reaction between 7.0002g of copper(II)sulfate and 2.0101g iron metal which produced 2.3037g of copper…

contributions such as the vacuum and how different waves move through a vacuum are still large enough to carry weight in modern science. For example, the vacuum has been remade to be better and better until it has reached the point where it can be used to isolate different compounds and elements to see how they react independently. One use could be mixing Nitrogen gas and Oxygen gas together independent of other particles that could be present in the air because the vacuum has removed them. This…

(in only one direction at a time) or blot the spot. Continue until spot-stain is removed. Do not allow nail polish remover to get to the latex backing. Go to step 3 to remove nail polish remover. I. Soot, graphite, copier material. Vacuum using crevice tool of vacuum cleaner to remove the soot. If all, or most, of the soot has not been removed, call McCreary's Healthy Homes. If vacuuming has removed all particles go to step 1 of general procedure to remove any traces. Cleaning but won't budge?…

3M sulfuric acid. The two H+ in sulfuric acid reacts with the O in CuO to form This solution was filtered by a vacuum to remove the sulfur. The filtrate contained Cu in an aqueous form and was transfer into a new beaker. Lastly, Zinc was added to the new beaker to reduced Cu (aq) to Cu (s). This is oxidation and reduction reaction because . This copper was recovered through vacuum filtration. After performing these reactions to recover copper, the % yield of copper. Throughout the…

decade of new inventions. Advances in technology shaped the US into a new world and led to the age of electricity in many homes of Americans. The cities were powered by electricity. Devices such as cars, refrigerators, washing machines, radios, and vacuum cleaners were new interventions in America. These technologies gave Americans more leisure time especially for women. New inventions reduced the difficulties of houseworks and gave American more time to do other things other than working. The…

to customers who are willing to pay for them. But is making this software ethical? I would argue that according to Aristotle's virtue based ethical theory that it is not ethical because it goes against moral agents' virtues and it creates policy vacuums that allows it to do so. First, creating ReservationHop is unethical because it…

Ives’, Sure Thing you can see that Billy is constantly rejected by Betty, but continuously restarts over, and keeps facing the rejection until he gets it right. Similarly, in my play No Thanks, Henry does not give up and keeps trying to sell Mary a vacuum despite her constant rejection. Furthermore, the male characters in both cases don’t always say the right things but are determined to get…

 Used Lubricant Regeneration Technology Most conventional processes for used lubricant regeneration involve physical separation and chemical treatments to remove the contaminants and impurities from used lubricants to make it suitable for re-use. Some of these technologies generate liquid effluents, solid wastes, and air emissions during the regenerating process. The types of wastes, effluents, and wastes vary with the technology and processes used, and the environmental control methods [CEPA,…

yellow. Sodium thiosulphate and hydrochloric acid were added aswell. Product collected by vacuum filtration and recrystallized from 96% ethanol. IR- and H- NMR-spectrum were taken to determine the location of the I+. I had a yield of 0,7 g (2,66mmol, 18,2%). The iodide’s position is opposite of the –OH group. Salicylamide…

voids inaccuracy in the functional impression occurs. Vacuum treatment of tissue-conditioning material provide solution to the problem of voids in the material. Vacuum-mixing is widely used to reduce the entrapment of air in gypsum products. The purposes of this study were to determine (1) reduction of void formation in tissue-conditioning material with use of vacuum treatment and (2) effect of microbial adherence on material with use of vacuum…