After the (CH3)2SiCl2 was hydrolyzed the solution was separated into its ethereal and aqueous layers in a separatory funnel. The aqueous solution can be discarded and then a dilute sodium bicarbonate solution should be prepared. ... Once the solution was neutral a final wash should be performed with water. Magnesium sulfate was then added to the remaining ethereal layer to dry the solution, and the dried solution was then filtered through gravity filtration into a clean beaker. ... The initial polymer solution was washed with dilute sodium bicarbonate in order to rid the solution of acidic imp...

• Word Count: 1194
• Approx Pages: 5
• Has Bibliography
• Grade Level: Undergraduate

Iron [26Fe], a metal in the first transition series, is one of the most ubiquitous and abundant elements existing in the inner and outer core of the Earth. Iron has sixteen oxides and hydroxides; two stable oxidation states in an aqueous solution of ferrous, Fe(II), and the ferric, Fe(III)[1]. Iro...

• Word Count: 574
• Approx Pages: 2
• Grade Level: Undergraduate

Weathering in general refers to a group of processes by which surface rocks disintegrates in-situ into smaller particles or dissolve into water due to the impact of the atmosphere and hydrosphere. According to Waugh weathering is the first stage in denudation or wearing down of the landscape; it...

• Word Count: 953
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate

In offices, homes, and other indoor areas, poor air quality can both cause health problems and make existing health problems worse. The U.S. Environmental Protection Agency currently ranks indoor air pollution as one of the top five threats to public health. Indoor air pollution results from the rel...

• Word Count: 853
• Approx Pages: 3
• Grade Level: Undergraduate

Imagine a modern day surgeon walking into an operation room or worse, tent, in the early 1860's, during the Civil War. This time was considered to be the middle ages of medicine. A Civil War general graphically depicted the typical surgery routine like this; "There stood the surgeons, their sleeves ...

• Word Count: 825
• Approx Pages: 3
• Has Bibliography
• Grade Level: Undergraduate