Essays Tagged: "ph level"

The Andromeda Strain- 25 quotes, explinations, and how it has to do with chemistry

idn't clog his blood like it did all the rest of the people. The man stayed alive because his blood pH level was too low for the virus to survive. The man in the white robe got acidosis because he had ... . And yet there must be something in common." -pg. 149B. PLOT RELEVANCE: This shows that the baby's pH and the old mans pH was not normal, even though they were total opposites from each other. The ba ...

(10 pages) 94 2 3.9 Apr/2002

Subjects: Science Essays > Chemistry

The Effect of Acid Rain on Seed Germination w/ headings and sub-headings

INTRODUCTIONThe term acid rain is usually used to refer to rain or snow with pH less than 5.6. It isusually created because of the presence of nitric and/or sulfuric acid in the ... grow . A radicle can seen, as the seedbegins to split apart.ACIDSIn order to understand acid rain, pH must first be understood. pH determines a substance'sacidity. A pH scale goes from 0 to 14. The l ... irst be understood. pH determines a substance'sacidity. A pH scale goes from 0 to 14. The lower the pH, the higher the acidity. Acids also haveother distinguishable characteristics. Acids taste sour, ...

(6 pages) 127 1 4.3 Jan/2003

Subjects: Science Essays > Environmental Science

Acid rain and the effect it has on our environment

Acid Rain," or more precisely acidic precipitation, is the term used to describerainfall that has a pH level of less than 5.6--a pH of 7 being neutral. This form of airpollution is currently a subject ... minerals. Acid rain is formed when oxides of nitrogen and sulfite combine with moisture in the atmosphere to make nitric and sulfuric acids. These acids can be carried away far from its origin. The tw ...

(4 pages) 51 0 4.0 Apr/2003

Subjects: Science Essays > Environmental Science

Enzyme on hydrochloric acid and yeast.

ubstrate as the active site has changed shape. In addition, enzymes usually work best at an optimum pH level, this is normally seven because enzymes are proteins which are damaged by very acidic or ve ... bstrate can increase the number of collisions.Kinetic TheoryThe kinetic theory is a theory, which emphasises on pressure, volume, and temperature. It states that gases contain particles that are alway ...

(14 pages) 63 0 4.8 Jun/2003

Subjects: Science Essays > Biology

Acid Rain - Causes and effects.

Acid rain, more correctly, acid precipitation, is the rain, snow, fog, hail, mist etc. that has a pH level below 5.6, the average acidity of rain. There are many factors which contribute to the acid ... rain can have terrible effects on the environment by damaging forests and crops or by lowering the pH of the lakes and rivers, making the water too acidic for many aquatic plants and animals to live. ...

(8 pages) 169 0 3.7 Sep/2003

Subjects: Science Essays > Environmental Science

Titration of amino acids

AbstractWater is essential for all living organisms. The physical and chemical properties of water are central to all biological structure and function. The ... ake it very unique. The hydrogen-ion concentration of biological system is usually preferred as the pH system, which determines the pH level of dilute aqueous solutions. In this laboratory exercise, t ... exercise, the data collected from the titration of weak acids with a strong base will be used to graph the titration curves and these titration curves will be used to identify an unknown acid by compa ...

(3 pages) 58 0 3.0 Apr/2004

Subjects: Science Essays > Chemistry

PH and Health Problems

d in the blood to the heart muscle. Heartburn occurs when small amounts of acid rise up into the esophagus. Unlike the stomach the esophagus does not have an extra lining in it so when it is exposed t ... hen it is exposed to acid it becomes painful and inflamed. The reason that heartburn relates to the pH scale is because of acids. Acids are one of the main causes of heartburn and acids are measured w ...

(2 pages) 37 0 4.0 May/2004

Subjects: Science Essays

The Effect of Acid Rain on Plant Growth

are burned; they generate sulfur dioxide, nitric oxide and nitrous dioxide that rise into the atmosphere. The oxides then go through chemical reactions and the end result is acid rain or simply a low ... he end result is acid rain or simply a lower pH level then normal or naturally. The lowest recorded pH level in the base of clouds in the northeast is 2.6 and the rain that falls usually has pH levels ...

(3 pages) 50 0 3.0 May/2004

Subjects: Science Essays > Biology > Plant Biology

Ph Balance in shampoo

This is a science project... not really an essay- but it may help for an ISRPPh Balance in ShampooAim: To find the Ph balance of different shampoosHypothesis: The cheaper the sh ... im: To find the Ph balance of different shampoosHypothesis: The cheaper the shampoo, the higher the Ph level.Background Information:Until the 1940s soap was used to wash the hair, but was replaced by ... d Information:Until the 1940s soap was used to wash the hair, but was replaced by shampoo which was Ph balanced and washed out well.Ph is a measure of the activity of hydrogen ions in a solution. Ph t ...

(3 pages) 24 0 0.0 Apr/2006

Subjects: Science Essays > Chemistry

Grade A Lab Report on The Effects of Acid Rain with the Germination of Pea Plants Including 2 data charts.

lems throughout the world. Acid rain is precipitation that has been combined with gases in the atmosphere, causing it to be slightly more acidic than normal rain. Acid rain has a PH level of about 5.0 ... uch harmful wastes as the burning of fossil fuels. This type of rain is carried throughout the atmosphere, for hundreds of miles, harming countryside. The real question is whether or not Acid rain eff ...

(3 pages) 27 0 3.0 Sep/2006

Subjects: Science Essays > Environmental Science

Enzyme Kinetics Lab Report: The reaction rate of enzyme, '-amylase in Starch-Iodine solution at different temperatures and pH levels

olution. We will be testing the relationship between enzymatic reaction affected by temperature and pH. Through the testing the enzyme at different temperatures, and different pH levels; it would dete ... yme at different temperatures, and different pH levels; it would determine at which temperature and pH level the enzyme worked the most efficiently. Analyzing absorbance of the solutions with spectrop ...

(8 pages) 161 1 3.3 Feb/2007

Subjects: Science Essays > Biology

Determining the Properties of an Enzyme - Establish the Most Optimal Environment for a Peroxidase Enzyme

s extracted from a brassica compestris (turnip), is tested under various conditions in temperature, pH level, and competitive inhibitor (hydroxylamine).ABSTRACT:In order to determine the properties of ... ase enzyme was extracted from a brassica compestris (turnip) and tested under various temperatures, pH levels, and by a competitive inhibitor (hydroxylamine). The enzyme activity was measured in vario ...

(3 pages) 90 0 3.7 Mar/2007

Subjects: Science Essays > Biology

It is a laboratory essay on an experiment we did over enzymes and the effects of the parameters on enzymes.

activity rate. We investigated the effects from four different parameters (substrate concentration, ph level, temperature level, and salt concentration. Each parameter was tested in different ways to ... . Each parameter tested and had an optimum level where the enzyme activity was at its peak (neutral ph 7, high substrate concentration, 3% salinity rate, and 11 degrees Celsius) INTRO The research con ...

(6 pages) 93 0 4.8 Apr/2007

Subjects: Science Essays > Biology

Investigating how surface area affects rates of reaction.

best conditions for enzymes to breakdown and live is around 37-40°c /body temperature; in a low pH level are if would work best.If the conditions are not suitable then the enzyme will denature, wh ...

(3 pages) 1014 0 0.0 Apr/2007

Subjects: Science Essays > Chemistry

Mountain Top Mining And The Law

cognizes that the stated objective of the Clean Water Act is ?to restore and maintain the chemical, physical, and biological integrity of the Nations Waters.? James City County, VA. v. EPA, 12 F. 3rd. ... ctive relief current conditions of Beaver Creek will be made worse. The stream currently has a high PH Level that will not support native or stocked population of trout. It is also alleged that if min ...

(26 pages) 412 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Observing Protein and Non-protein Catalysts Under Different Conditions

they specifically affect. An enzyme works best under optimal conditions pertaining to temperature, pH level and salt concentration1. In unfavorable conditions enzymes will become denatured and ineffe ... me denatured and ineffective. In human beings enzymes are most effective in 37 C temperatures, at a pH level of 7.2 (in the stomach a pH of 2 and in the small intestine a pH of 8.5)3 and with a daily ...

(5 pages) 16 0 0.0 Apr/2008

Subjects: Science Essays > Biology

Cell volume

if it wasnot accounted for, for example: whether the blood was fresh or old, and whether the blood PH was high or low. So we expect to have higher oxygen affinity when blood comes from young sheep th ... o we expect to have higher oxygen affinity when blood comes from young sheep than old one. Also the PH level will play an important role in getting the correct results, because increasing blood PH wil ...

(1 pages) 20 1 2.5 Nov/2008

Subjects: Science Essays > Biology > Human Biology


Alkalinity is "the water's capacity to resist changes in pH that would make the water more acidic." (Wilkes). The overall purpose of alkalinity is to protect ... " (Wilkes). The overall purpose of alkalinity is to protect the body of water from quick changes in pH levels. However, alkalinity is not to be confused with pH. pH is how intense the basic or acid st ... alkalinity is not to be confused with pH. pH is how intense the basic or acid state of a liquid is. pH is determined by the alkalinity of the water. Alkalinity is a buffer, which means it can neutrali ...

(2 pages) 1115 0 3.0 Jan/2009

Subjects: Science Essays > Chemistry

Effects of Salt Water On Osmoregulation

ng students who were in the water group ingested 500 mL of water at this time. The volume, level of pH, chloride concentration, and specific gravity of each urine sample was measured every thirty minu ... l mean volume for the water group was 33.3 mL and the NaCl group was 24.1 mL (Figure 1).The average pH level for the water group remained constant at 6.1 from time intervals zero through ninety, and d ...

(8 pages) 0 0 0.0 Nov/2012

Subjects: Science Essays > Biology

Tap water and where is it good and why?

ap water and that bottle water is a fraud. When I moved to Florida there was bottled water called Zephyrhills. It was bottled in Florida and was to be the best water in the region. I went to the plant ... n his water taps to get rid of all the metal and bad things that are in the water. When testing the ph level and chlorine content, it showed what I thought to be true. The ph level in my tap water is ...

(3 pages) 0 0 0.0 Feb/2013

Subjects: Science Essays > Earth Sciences