Essays Tagged: "PH"

Acid Rain

the difficulty and costof properly disposing of these products they are often emitted into theatmosphere with little or no treatment.The term was first considered to be important about 20 years ago w ... running downinto the streams and lakes. They believed that the snow had been exposed tomany natural phenomena that gave the snow it's high acid content. Otherscientists were not sure that this theory ...

(7 pages) 101 1 3.3 Dec/1994

Subjects: Science Essays > Environmental Science

Acid rain.

the difficulty and costof properly disposing of these products they are often emitted into theatmosphere with little or no treatment.The term was first considered to be important about 20 years ago w ... running downinto the streams and lakes. They believed that the snow had been exposed tomany natural phenomena that gave the snow it's high acid content. Otherscientists were not sure that this theory ...

(7 pages) 43 0 1.8 Feb/2003

Subjects: Science Essays > Environmental Science

A 35 minute essay on Homeostasis in living organisms

; C is detected by the hypothalamic heat and cold receptors located in the hypothalamus and the peripheral cold receptors in the skin. In the case of a rise in temperature, the hypothalamic 'heat loss ... y harsh conditions, such as deserts, extreme cold, or bacteria living in hot springs or extremes of pH. The failure of any homeostatic mechanism would usually result in death.

(3 pages) 61 0 2.0 May/2003

Subjects: Science Essays > Biology

Acid Rain.

osition. Natural rainfall is slightly acidic due to dissolved carbon dioxide, picked up in the atmosphere. Organisms and ecosystems all over the planet have adapted to the slightly acidic nature of no ... es of acid rain and the damage that it causes. As research continued, the situation reached catastrophe proportions in the late 1970's. By this time, thousands of lakes in Canada and Scandinavia had b ...

(8 pages) 76 1 4.3 Dec/2003

Subjects: Science Essays

Acid Rain

ntry (50). Patel, who wrote the article "Acid Rain," suggests that acid rain is rain that has a low pH. Normally, rain is acidic because of the carbon dioxide that animals exhale. Rain becomes acidic ... . Rain becomes acidic from gases that disintegrate into the rain water. These gases out in the atmosphere give rain a pH of or around 5.0. "Before the Industrial Revolution the pH of rain was generall ...

(6 pages) 62 1 4.0 Dec/2003

Subjects: Science Essays > Earth Sciences

Acid

acid, lactic acid, and tartaric acid. Some of the more common inorganic acids are hydrogen sulfide, phosphoric acid, hydrogen chloride, and sulfuric acid.One common way of testing the strength of an a ... acid, hydrogen chloride, and sulfuric acid.One common way of testing the strength of an acid is the pH scale. A low pH number means there is a high hydrogen ion concentration. The value for a pH numbe ...

(2 pages) 28 0 3.0 Mar/2004

Subjects: Science Essays > Chemistry

Acid-Base Titration Chemistry Formal Lab Writeup by A.Mm

AbstractBy using acid-base titration, we determined the suitability of phenolphthalein and methyl red as acid base indicators. We found that the equivalence point of the t ... he equivalence point of the titration of hydrochloric acid with sodium hydroxide was not within the ph range of phenolphthalein's color range. The titration of acetic acid with sodium hydroxide result ... ration of ammonia with hydrochloric acid had an equivalence point that was also out of the range of phenolphthalein.. The methyl red indicator and the phenolphthalein indicator were unsuitable because ...

(6 pages) 283 2 4.9 Apr/2004

Subjects: Science Essays > Chemistry

Acid Rain

he difficulty and cost of properly disposing of these products they are often emitted into the atmosphere with little or no treatment. The term was first considered to be important about 20 years ago ... nning down into the streams and lakes. They believed that the snow had been exposed to many natural phenomena that gave the snow it's high acid content. Other scientists were not sure that this theory ...

(8 pages) 61 2 4.0 Jun/2004

Subjects: Science Essays > Earth Sciences

Acid Rain

in the industrial world. Acid rain is snow, fog or rain that has been polluted by acid in the atmosphere. Rain is naturally acidic because carbon dioxide, found normally in the earth's atmosphere, re ... in the earth's atmosphere, reacts with water to form carbonic acid. While "pure" rain's acidity is pH 5.6-5.7, actual pH readings vary from place to place depending upon the type and amount of other ...

(3 pages) 95 2 5.0 Aug/2004

Subjects: Science Essays

Acid Rain

Acid rain is a cancer on the face of North America and the World. In the United States, the main sulphuric acid sources are non-ferrous smelters and power generation. On both sides of the border, cars ... industrial commercial and residential fuel combustion together make up the rest. In the air, the sulphur dioxide and nitrogen oxides can be transformed into sulphuric acid and nitric acid. These Acids ...

(5 pages) 50 0 4.6 Jan/2005

Subjects: Science Essays > Agriculture

Acid rain.

Acids form when certain atmospheric gases come into contact with water in the atmosphere or on the ground and are chemically conv ... n is naturally slightly acidic, human activities can make it much more acidic.The principal natural phenomena that create acid-producing gases in the atmosphere are emissions from volcanoes and from b ... ation vehicles.Since the industrial revolution, emissions of sulfur and nitrogen oxides to the atmosphere have increased. Industrial and energy-generating facilities that burn fossil fuels, primarily ...

(4 pages) 36 0 3.7 Sep/2005

Subjects: Science Essays > Earth Sciences

Acid Rain.

approximately half of the emissions of this gas in the world. When sulfur dioxide reaches the atmosphere, it oxidizes to first form a sulfate ion. It then becomes sulfuric acid as it joins with hydro ... to catalyze the reaction, changing more sulfur dioxide to sulfuric acid. However, not all of the sulphur dioxide is changed to sulfuric acid. In fact, a substantial amount can float up into the atmosp ...

(7 pages) 28 0 3.7 Nov/2005

Subjects: Science Essays > Chemistry

Acid Rain

been 12 years since the deadline, but our water is still polluted. Another way to test water is the pH factor, which you could do at home if you had a kit. It measures water and other liquids on a sca ... p it. Hopefully we will continue to try to clean up our air and water before it's too late.Bibliography:Cochrane, Jennifer. "Water Ecology" Bookwright Press - New York, NY 1987, p 16. Gay, Kathlyn. "W ...

(3 pages) 17 0 0.0 Sep/2006

Subjects: Science Essays > Environmental Science

Acid Rain

only three of the many causes of environmental pollution. Air pollution is the presence in the atmosphere of substances that are toxic, irritant, or otherwise harmful to men (or women) or damaging to ... the leading pollutants to blame for acid rain. Both oxides are chemically bonded elements with low pH levels. Sulfur dioxide is gas that is emitted from volcanoes, rotting vegetation, and the burning ...

(8 pages) 21 0 3.0 Jul/2001

Subjects: Science Essays > Environmental Science

Acid Rain

10/9/00 Acid Rain Acid rain is measured using a pH scale, anything that is less than the neutral number 7 is considered acidic. Anything above 7 is ... nything that is less than the neutral number 7 is considered acidic. Anything above 7 is normal. Sulphur dioxide is the main cause of acid rain on earth. Volcanoes, sea spray, and rotting vegetation a ...

(1 pages) 11 0 4.0 Sep/2001

Subjects: Science Essays > Chemistry

Acid Rain

Acid Rain Acid rain is measured using a pH scale, anything that is less than the neutral number 7 is considered acidic. Anything above 7 is ... nything that is less than the neutral number 7 is considered acidic. Anything above 7 is normal. Sulphur dioxide is the main cause of acid rain on earth. Volcanoes, sea spray, and rotting vegetation a ... rain on earth. Volcanoes, sea spray, and rotting vegetation are some of the things that give off sulphur dioxide. The main thing that causes sulphur dioxide to be given off into the atmosphere is the ...

(1 pages) 10 0 3.0 Sep/2001

Subjects: Science Essays > Environmental Science

Acid Rain

planet earth has not lessened the concern about acid rain.What is acid rain? Acid rain is rain with pH values of less than 5.6. Acid rain is rain mixed with sulfur. Sulfur is put into the air by sulfu ... ted by acid rain how do you neutralize it.i) The concentration of sulfuric acid is 0.0443 mol/L.The pH is: No. Mol of hydrogen ions = 0.0443 mol/L x 2 = 0.0886 mol/L hydrogen ions pH = - log [H] = - l ...

(4 pages) 758 0 0.0 Feb/2002

Subjects: Science Essays > Chemistry

Acid Rain

century. Coal contains sulfur and when burning it, it will produce sulfur dioxide. When in the atmosphere, sulfur dioxide may be converted to sulfuric acid (Pringle 8). Acid rain is dispensed across t ... world. High smoke stakes were developed to distribute pollutant acid-laden smoke higher in the atmosphere and spread it elsewhere (Merki 598). This was a quick remedy to a local problem, but harmed ot ...

(4 pages) 17 0 3.0 Feb/2008

Subjects: Science Essays > Environmental Science

Neutralization in Acids and Bases

was as follows; the cupcake will have a different taste, and that since citric acid is lower on the pH scale than lactic acid, the reaction within the cupcake would be stronger. The observations recor ...

(3 pages) 0 0 0.0 Oct/2013

Subjects: Science Essays > Chemistry

enzyme

water.Assumptions:All reducing sugar has reacted with B solution, invertase works well in the given pH and temperature.Materials and apparatus:10mM lead (II) nitrate10mM silver nitrate50g/L sucrose so ...

(3 pages) 0 0 0.0 Dec/2013

Subjects: Science Essays > Biology