Public water system

aqueous mixture. The raffinate phase contains most of water and traces of HAc, and solvent, whereas the extract phase includes most of the solvent, HAc, and traces of water. The amount and composition of the mixed solvent significantly important for the process economy because it directly affects the composition of HAc in the extract phase. A good solvent should have a high distribution coefficient for the HAc and a high selectivity between HAc and water. Further, the solvent must be easy to…

the pH meter. Out of ten substances that were used, five of them were found to be acidic, namely: hydrochloric acid, coke, toothpaste, milk, and acetic acid. Sodium hydroxide, buffer solution, bleach, and the detergent were found to be basic. Bottle water was found to be neutral. Substances are said to be acidic because of having pH levels lesser than 7, and those having pH greater than 7 are said to be basic. Some are neutral,…

Our five senses are vital to us. They enable us to experience and recognize the beautiful and complex world around us. They are the means by which we see the sunlight, listen to the bird song, taste the soft fruit, touch the beach sand and, smell the salty ocean air. Those are our senses, but are there truly just five senses? Or could there be a sixth sense as well? A sense that certain people possess that makes them able to predict events and situations before they occur? An example of such…

and round. In reality, it's not so much an island of trash as a soupy area of litter, mostly in the form of tiny flecks of plastic, studded here and there with old fishing gear and children's toys. If you were to sail right through the Patch, the water itself probably wouldn't look too remarkable, unless you scooped some up and looked at it closely. Now, this does not mean that the issue is lessened in the slightest; It may even be worse. Everyone needs to come to a distinct agreement on…

Summers at the Lake My family is not the type the goes on expensive or luxurious vacations to places like the Caribbean or Jamaica. We prefer pleasant and easy vacations together with all of our family members where we can have a fun time and spend quality time together. Vacations to the lake are like an escape from the outside world, a chance to see nature and enjoy the simplicity of life. We may be doing various activities such as fishing, barbequing, or competing in corn-hole competitions,…

Throughout millions of years species have learned to adapt to the ever-changing planet they call home. Some species have survived the change and others have not and went extinct. The National Geographic documentary on the Wild Amazon Rainforest offers some insight on how the creatures of the forest and the river have adapted throughout time. Every year new species is being discovered, whether it be plants or animals. If the environment is changing slowly the animals and plants that live in the…

oxide (CuO) and two hydrochloric acids (HCl) and they react together and form CuCl2 and water. A very simple method that does not need much work. The next one is a neutralization reaction and a method that produces more water than the previous reaction. The reactants of this method include copper (II) hydroxide (Cu(OH)2) and two hydrochloric acids (HCl) producing a copper (II) chloride compound and two waters. There is a displacement reaction with copper (II) chloride as well. The weaker acid…

filtration system and as a wave buffering zone against hurricanes. Introduction Mangroves are mainly tropical plants with a tangled root system that grows at the interface between land and sea zones of sheltered tropical shores and island. (National Environment & Planning Agency [NEPA], 2014). The mangrove forests are environmentally important to coastal ecosystem, which plays a vital role in sustaining the inland, as…

Cecilia Wong Nature of the task and the research question: Two centimetre piece of potato is bathes into different salt solutions (0%, 5%, 10%, 15%, 25%, 35%) over a period of time, to determine the effect of different salt solutions on osmosis. To investigate the effect of increasing the concentration of sodium chloride (0%, 5%, 10%, 15%, 25%, 35%) on the process of osmosis, by calculating the mass change of the potato core (g, ±0.01g) at room temperate of lab (25.0˚C) Table 1: Raw data Table…

High Temperature Electronics 10 3.5 State of the Art The trend is shifting towards lead free solders with different base materials hypo eu-tectic Bi-Ag alloys are preferred based on liquidus temperature in comparison to PbSn solders. Zn-Al eutectic systems alloyed with Mg, Ge ,Ga ,Sn, Sb, Bi may serve interesting topics for…