Chapter 15 Vocab Boiling temperature elevation- property of solutions that describes temperature difference between boiling point of a pure solvent and temperature at which solution begins to boil. Colligative property- characteristic of a solution that does not depend on size or type of particl...

The History of SoapMost people washed themselves with only one essential thing at the time, water. This, of course, happened until the development of soap in 2800 B.C. The soap was found in clay cylinders during the excavation of ancient Babylon. There were inscriptions discovered on the cylinder...

The element Bromine, is a red liquid which is explosive at room temperature and has ared brown vapour. It has an atomic number of 35 and an atomic mass of 79.909. Themelting point of Bromine is -7 deg.C and the boiling point is 58 degC with a relativedensity of 3.1. Bromine is a volatile dense mo...

In this paper I will describe the molecular structure and the chemical properties of water. Also I will discuss the importance of water to living organisms and the effects of acid rain on our environment. Water, as a molecule is a bent molecule and this characteristic makes it a very polar. W...

Purpose: To demonstrate the isolation of a natural product from a biological source (tea bags) using extraction techniques, and to demonstrate purification by sublimation. Procedure: In a 400ml beaker, 15 tea bags were submerged in approximately 125ml of water. This was brought to a boil ov...

Acid Rains Scientific evidence has shown that atmospheric deposition of sulfur and nitrogen compounds can harm ecosystems. Title IV of the Clean Air Act Amendments of 1990 (CAAA or the Act) addresses the problem of such effects by mandating reductions in emissions of sulfur and nitrogen oxides, t...

Climate switch IntroductionWhat is the oceans role in climate? The oceans play a vital and pivotal role in the distribution of life sustaining water throughout our planet. 86% of the evaporation that occurs on earth is over the oceans. The oceans are the planets largest reservoir of water transferri...

Modeling of Water Uptake into Polymeric Aerosol Particulates Deposited on the Lung SurfaceNeil GuptaBiological TransportDecember 12, 2001 AbstractInhalation of aerosolized drugs holds promise as a means to treat localized disease states within the lung and may also represent an ideal method for dru...