Of Hydrochloric Acid

10996
10996
10/9/96 Vegetarianism The time that we are now living in has been termed by many as the information age. This title has been given to the current era because people can retrieve, send, and process knowledge faster and more efficiently than ever before. From our new period has come technological advancements which have both caused and been an effect of the growing pool of information available to the world. Communities more fully understand and are changing the way they affect the environment of
Declaration
Declaration
Declaration This report entitled The Geology of the Massif Montgris was composed by me and is based in my own work. Where the work of others has been used, it is fully acknowledged in the text and in captions to tables and illustrations. Signed ……………………………………. Date ……………………………………….. Chapter 1.0 Abstract This is a study of the Massif Montgris, it is based on evidence gathered in the field over 21 days of field work. To supplement this data I have looked at papers and works by previous visitors
Albert Jung
Albert Jung
Albert Jung Abstract: This lab assignment is to observe certain substances and observe its physical and chemical changes in different environmental conditions. We first observed its physical properties, such as physical state and color and recorded it on paper. Then we did different types of experiments on some of the substances and observed the chemical changes. Some of the chemical changes where endothermic, exothermic, changes in color and changing of its physical state. We recorded the obse
Digestive System Notes
Digestive System Notes
Digestive System Notes the digestive tract:-begins with the oral cavity and includes the pharynx, esophagus stomach, small intestine, large intestine and anus. Be able to label the parts in the diagram below Oral cavity- teeth tear and grind food and the tongue mixes food with saliva. Functions of saliva i. It contains an enzyme (salivary amylase) that breaks down starch to maltose ii. It moistens the food and forms a food ball iii. It lubricates the esophagus so swallowing in made easier Pharyn
Ciprofloxacin
Ciprofloxacin
Ciprofloxacin Compound Name: Ciprofloxacin Compound Formula: C17H18FN3O3 Molar Mass: 331g in one mole of Cipro % Composition by mass: 61.6% Carbon, 5.4% Hydrogen, 5.7% Fluorine, 12.7% Nitrogen, and 14.5% Oxygen % Composition by number: 17 Carbon, 18 Hydrogen, 1 Fluorine, 3 Nitrogen, and 3 Oxygen Melting Point: 207ΊC (tablet) 258-260ΊC (IV) Type Bonding: Contains both ionic and covalent bonds. Obtained: The Ciprofloxacin compound is obtained through synthetic production. Therefore, it does not ex
Disposing Of Plastics
Disposing Of Plastics
Disposing Of Plastics 1. Plastics cause the environment a lot of problems because it takes a long time to degrade. Many animals have problems with plastics because of seals and birds getting drink can ring holders stuck around their muzzles and neck stopping then from eating. Plastic bags and wrappers are killing fish and birds by blocking their gills and guts. Landfill at the Rubbish Tips 2. An overgrowing problem with the sanitary landfill is the problem with the places to put this waste. Its
Investigate the factors which affect the rate of reaction between Calc
Investigate the factors which affect the rate of reaction between Calc
Investigate the factors, which affect the rate of reaction between Calcium carbonate and Hydrochloric acid Background information In this investigation, which is about the different factors and their affects on the rate of reaction, we will be reacting calcium carbonate and hydrochloric acid. The equation for this reaction is: Calcium Carbonate + Hydrochloric acid ΰ Calcium Chloride + Water + Carbon dioxide CaCO3 (s) + 2HCl (aq) ΰ CaCl2 (aq) + H2O (l) + CO2 (g) We will be using hydrochloric acid
Investigating a factor that affects the rate of reaction
Investigating a factor that affects the rate of reaction
Investigating a factor that affects the rate of reaction Aim - To investigate the effect of concentration on the rate of reaction - To investigate the reaction between hydrochloric acid and magnesium Prediction 1) -I predict that the higher the concentration of hydrochloric acid the faster the time will be for the magnesium to dissolve. 2) -I predict that the higher the molar of hydrochloric acid, the more hydrogen gas will be given off. 3) -I predict that the higher the concentration of hydroch
Common Anions and Cations Lab
Common Anions and Cations Lab
Common Anions and Cations Lab Period 3 The purpose of this lab was to identify common anions and cations in solutions using simple chemical tests, and to use the results discovered in these tests to identify ions in an unknown solution. First we tested for anions, skipping the boiling bath described by step one; we tested for the chloride ion. To do so we added 2 mL of sodium chloride to a clean prepared test tube. To a second clean test tube we added 2 mL of the unknown substance-A102. One mL e
Forming Bonds Assignment
Forming Bonds Assignment
Forming Bonds Assignment 1. a) O2 b) HCl c) O2N d) H2S 2. a + symbol in a chemical equation means and or also. A –› symbol means producers or equals. In a chemical reaction a product is what is produced by the chemical reaction and reactants are what creates the chemical reaction. 3. a) Balanced b) Balanced c) H2 + Cl2 –› 2HCl d) N2 + 3H2 –› 2NH3 e) Mg + 2HCl –› MgCl2 +H2 f) 2Pb(NO3)2 –› 2PbO + 4NO2 + O2 4. a) C + O2 CO b) Na+HCl –› NaCl + H c) SO2 + O2 O3 d) C12H22O11 –› C+ H2O e) Fe + O2 –› Fe
Quantified reactivity
Quantified reactivity
Quantified reactivity Aim: to see which metal produces the highest amount of gas Equipment: o Safety glasses o Heatproof mat o Steel wool o gas syringe o 1cm x 4cm piece of magnesium, zinc, copper, aluminum and iron o hydrochloric acid o retort stand o boss head o gas syringe o plastic tubing o 250ml of conical flask Method: firstly set up your equipment And then cut up your bits of metal. Then put one piece of metal in the flask and add acid and then time and measure the amount of gas given off
Rates Of Reaction
Rates Of Reaction
Rates Of Reaction Aim: To investigate the effect of the concentration of Hydrochloric acid on the rate of reaction between Hydrochloric acid and Calcium Carbonate. Background: The rate of reactions between two substances is dependent on many factors or variables: 1. Change in temperature 2. Surface area of solid substance, 3. Concentration of the acid, 4. Volume of Acid used. While doing my experiment, I must remember to keep all of my variables the same. This will make it a fair test. For examp
Nutrition and You
Nutrition and You
Nutrition and You Nutrition is the relationship of foods to the health of the human body . Proper nutrition means that you are receiving enough foods and supplements for the body to function at optimal capacity. It is important to remember that no single nutrient or activity can maintain optimal health and well being, although it has been proven that some nutrients are more important than others. All of the nutrients are necessary in different amounts along with exercise to maintain proper healt
After seeing the movie I have to say that its presentation and deliver
After seeing the movie I have to say that its presentation and deliver
After seeing the movie, I have to say that its presentation and delivery was more than satisfactory. Its story, however, is nothing new specially here in the volcano-infested Philippine archipelago. Dante's Peak is a good adventure/natural catastrophe movie that can make the viewers get a feel for how geologists work. . . The Movie is set in the Cascade Range of the Pacific Northwest, U.S.A. Dante's Peak is, of course, not a real Cascade volcano, and although Idaho is adjacent to states with
INTRODUCTION
INTRODUCTION
INTRODUCTION Firearms Identification is a discipline of Forensic Science that has as its primary concern to determine if a bullet, cartridge case, or other ammunition component was fired from a specific firearm. FIREARMS IDENTIFICATION Whenever a shooting occurs the firearms evidence is collected and evaluated as to its importance to the case. The evidence submitted to a lab's Firearms Section will typically include a firearm or firearms, fired bullets, spent cartridge cases, spent shotshells, s
TESTING THE EFFECT OF pH AND TEMPERATURE ON ENZYME ACTIVITY
TESTING THE EFFECT OF pH AND TEMPERATURE ON ENZYME ACTIVITY
TESTING THE EFFECT OF pH AND TEMPERATURE ON ENZYME ACTIVITY PURPOSE: To see how changes in pH can affect the activity of the enzyme catalase. Catalase is an enzyme found in most tissues of plants and animals. It is designed to break down hydrogen peroxide (H2O2), a toxic by-product of cell metabolism. We will extract our catalase from beef liver. HYPOTHESIS: If more pH is present, then there will be more bubbling action when catalase is added. DATA: TEST-TUBE ACTIVITIES AFTER FIRST MIXTURE TEST-
The Digestive System
The Digestive System
The Digestive System Digestion is a process in which your body converts your food into simpler forms which can be used to supply energy and building materials for growth. Food enters your body through your mouth. Your tongue moves the food around while your teeth chew it up. The tongue also aids in the process of swallowing the food. The salivary glands add saliva to the mouth. The saliva contains an enzyme call Salivary Amylase which changes the starches in the food to sugars. These sugars give
DESCRIPTION OF A NETWORK
DESCRIPTION OF A NETWORK
DESCRIPTION OF A NETWORK A network is the linking of two or more computers for the purpose of sharing data, programs and/or physical resources. · Examples: · Data Two people can work independently on the same project at different computers. By being connected to each other, there is no need for swapping floppy copies with the possibility of loss or old revisions creeping into the work flow. · Programs One copy of a program can be purchased and placed on one computer, and others connected may be
URANIUM
URANIUM
URANIUM NUCLEAR FRIEND OR NUCLEAR FOE On Monday August 6, 1945 the U.S. Bomber Enola Gay flew over the Japanese city of Hiroshima. Seconds later a metallic projectile fell towards its target. In a blinding flash the world felt the power of a new age, the nuclear age. The study of radiation that would eventually lead to these uranium weapons began in 1798. It was in this year that the german chemist Martin Heinrich Klaproth identified the element uranium. Uranium was not isolated in a metallic s
CHLORINE The chemical element chlorine is a poisonous corrosive greeni
CHLORINE The chemical element chlorine is a poisonous corrosive greeni
CHLORINE. The chemical element chlorine is a poisonous, corrosive, greenish-yellow gas that has a sharp, suffocating odor and is 2 1/2 times heavier than air. Volcanic gases sometimes contain a small amount of chlorine gas. Other than that, chlorine is always found combined with other elements. Chlorine is obtained commercially from salt water by electrolysis--that is, by running an electric current through the solution. . Chlorine is changed to its liquid form by compressing the gas, and the l
One of the things associated with volcanos erupting other than lava an
One of the things associated with volcanos erupting other than lava an
One of the things associated with volcanos erupting other than lava and rocks is pollution. Volcanic pollution is generaly in three forms, gases, ashes, and cinders. Volcanic gases are emitted during erutions and periods of inactivity. In an eruption the gas relesed is mostly(80%) water vapor(H20), with smaller amounts of sulfur dioxide(S02) and carbon dioxide(C02). These gases rise and can harm or depleate the ozone layer. Volcanic ashes are composed of pulverized rocks and accompanied by a nu
Physical Science
Physical Science
Physical Science 2-28-99 Purpose: To determine which of the two acids is stronger by adding a base to an acid until it neutralizes, then determine what the unkown is. Background Information: To do this lab, you need to know what most of the words mean. An acid is a substance that produces hydrogen ions in a solution, to identify an acid the pH is under 7. A base is a substance that produses hydroxide ions in a solution, and to identify an base the pH level needs to be over 7. A pH measure of hy
What factors affect the Rate of a Reaction
What factors affect the Rate of a Reaction
What factors affect the Rate of a Reaction? Objective Compare the rates of reaction under varying conditions. Materials Safety goggles, lab apron, magnesium ribbon, scissors, metric ruler, 25-mL graduate, hydrochloric acid, 50-mL Erlenmeyer flask, 250-mL beaker, timer. Procedure A. Wear safety goggles and lab apron throughout this activity. B. Draw a data table like the one shown. C. Cut a piece of magnesium ribbon 2cm long. D. Measure 10mL of hydrochloric acid and pour it into an Erlenmeyer fl
Some people believe that our ancestors have always eaten meat so we sh
Some people believe that our ancestors have always eaten meat so we sh
Some people believe that our ancestors have always eaten meat, so we should too. However, the truth of the matter is that, for the most part, they were vegetarians. Scientists have discovered that our ancestors only ate meat in extreme crisis. Their normal diet consisted of fruits, nuts, and vegetables. However, during the ice age when everything froze, and they couldn’t grow fruits and vegetables, they had to find other things to eat (Mitra 6). This resulted in the eating of animal flesh. Sinc
The Digestive System
The Digestive System
The Digestive System The digestive system is responsible for processing food, breaking it down into proteins, carbohydrates, minerals, fats, and other substances, and inject them into the bloodstream so that they can be used by the body. The digestive, or alimentary, tract begins at the mouth, where the teeth and tongue begin the breakdown of food, assisted by saliva from the salivary glands. Saliva contains enzymes which break up food and cause other chemicals to react easily with it. Two of t
MOLES OF IRON AND COPPER
MOLES OF IRON AND COPPER
MOLES OF IRON AND COPPER EXPERIMENT #2 The reason to test this experiment was to determine whether copper(II) chloride was used or copper(III) chloride. Materials Needed: 2 100 mL beakers copper(II) chloride wash bottle 2 iron nails stirring rod 1 M hydrochloric acid, HCl crucible tongs distilled water centigram balance 10 mL graduated cylinder Procedure: 1. Be sure to have your safety goggles and laboratory apron before you enter the lab station. 2. Using the 100 mL beaker, make a solution with
Vitamin C
Vitamin C
Vitamin C Vitamin C, also known as ascorbic acid, was the subject of the first controlled clinical experiment in recorded medical history. In the 1750’s, a British doctor put limes, rich in Vitamin C, in the rations of one group of sailors and then compared this group with a second group of sailors who got precisely the same rations except for the limes, which were withheld. The limeless group, after having been at sea a long time, showed the expected tendency to develop scurvy, a disease charac
Vanadium
Vanadium
Vanadium Atomic Number: 23 Atomic Symbol: V Atomic Weight: 50.9414 Electron Configuration: -8-11-2 History (Scandinavian goddess, Vanadis) Vanadium was first discovered by del Rio in 1801. Unfortunately, a French chemist incorrectly declared that del Rio's new element was only impure chromium. Del Rio thought himself to be mistaken and accepted the French chemists's statement. The element was rediscovered in 1830 by Sefstrom, who named the element in honor of the Scandinavian goddess, Vanadis, b
Platinum
Platinum
Platinum Platinum is a relatively rare, chemically inert, metallic element. It symbol is Pt, atomic number is 78, and its atomic weight is 195.09. Platinum is one of the heaviest substances known. One cubic foot of Platinum weighs 21 times as much as a cubic foot of water. A grayish-white metal, Platinum has a melting point of 1772 degrees C and a realatively high boiling point of 3827 degrees C. It has a high fusing point, is ductile and malleable, expands slightly upon heating, and has high el
Clinical Chemistry Tests In Medicine
Clinical Chemistry Tests In Medicine
Clinical Chemistry Tests In Medicine Of the diagnostic methods available to veterinarians, the clinical chemistry test has developed into a valuable aid for localizing pathologic conditions. This test is actually a collection of specially selected individual tests. With just a small amount of whole blood or serum, many body systems can be analyzed. Some of the more common screenings give information about the function of the kidneys, liver, and pancreas and about muscle and bone disease. There a
Properties of Water
Properties of Water
Properties of Water Water is essential for life as we know it on earth. It is used by plants and animals for basic biological processes which would be impossible without the use of water. The origin of all life can be traced back to the water in the Earth's precambrien seas. Water is also the universal solvent. It reacts with more elements and compounds than any other substance known to man. Water is a polar molecule made up of on atom of hydrogen and two atoms of oxygen. It is attracted to itse
The Dog
The Dog
The Dog Domestic dog, carnivorous mammal, generally considered the first domesticated animal. The domesticated dog has coexisted with human beings as a working partner and household pet in all eras and cultures since the days of the cave dwellers. It is generally believed that the direct ancestor of the domestic dog is the wolf, originally found throughout Europe, Asia, and North America. Remains of a dog, estimated to be 10,500 years old, have been found in Idaho. TAXONOMY Kingdom: Animalia Phy
Chemical and Biological Weapons
Chemical and Biological Weapons
Chemical and Biological Weapons Chemical and biological weapons are the most dangerous threats that our soldiers face today. But just how much do most of us know about them? The American public had been bombarded by stories of how our government keeps secret weapons, does secret experiments, and the everlasting conspiracies. And many accept it all. Rather than simply trusting our government, (which is perhaps as foolish as believing several unsubstansiated theroies), I’ve compiled several simple
The Chlorine Debate How White Do You Want It
The Chlorine Debate How White Do You Want It
The Chlorine Debate: How White Do You Want It? Chlorine is one of the world's most widely used chemicals, the building element vital to almost every United States industry. We use chlorine and chlorine-based products whenever we drink a glass of water, buy food wrapped in plastic, purchase produce in the supermarket, pour bleach into a washing machine, have a prescription filled, print out a computer document like this one, or even drive a car. (Abelson 94) Chlorine, a member of the halogen (sal
Evaluating An Enthalpy Change That Cannot Be Measured Directly
Evaluating An Enthalpy Change That Cannot Be Measured Directly
Evaluating An Enthalpy Change That Cannot Be Measured Directly. Dr. Watson. Introduction. We were told that sodium hydrogencarbonate decomposes on heating to give sodium carbonate, water and carbon dioxide as shown in the equation below:- 2NaHCO3(s)--------> Na2CO3 (s) + H2O (l) + CO2 (g) = DeltaH1 This was given as deltaH1 and we had to calculate as part of the experiment. This however cannot be measured directly, but can be found using the enthalpy changes from two other reactions. These being
Rates of Reaction
Rates of Reaction
Rates of Reaction BACKGROUND INFORMATION What affects the rate of reaction? 1) The surface area of the magnesium. 2) The temperature of the reaction. 3) Concentration of the hydrochloric acid. 4) Presence of a catalyst. In the experiment we use hydrochloric acid which reacts with the magnesium to form magnesium chloride. The hydrogen ions give hydrochloric acid its acidic properties, so that all solutions of hydrogen chloride and water have a sour taste; corrode active metals, forming metal chlo
Technetium
Technetium
Technetium Nalin Balan NUCL 200 Paper due 02/07/97 Atomic Number: 43 Atomic Symbol: Tc Atomic Weight: (97) Electron Configuration: -18-13-2 History, Properties and Uses: (Gr. technetos, artificial) Element 43 was predicted on the basis of the periodi c table, and was erroneously reported as having been discovered in 1925, at which time it was named masurium. The element was actually discovered by Perrier and Segre in Italy in 1937. It was found in a sample of molybdenum, which was bombarded by d
The Element Chlorine
The Element Chlorine
The Element: Chlorine General Information We researched the chemical element known as chlorine. Chlorine has an atomic number of 17 and an atomic weight of 35.453. It has a valence number of 3. The element has 3 energy levels. Chlorine exists as a greenish-yellow gas at normal temperatures and pressures. Chlorine is second in reactivity only to fluorine among the halogen elements. Chlorine is a nonmetal. It is estimated that 0.045% of the earth’s crust and 1.9% of sea water are chlorine. Chlorin
Urease
Urease
Urease An experiment to determine the amount of urea in a specimen of urine. Introduction. Metabolism produces a number of toxic by-products, particularly the nitrogenous wastes that result from the breakdown of proteins and nucleic acids. Amino (NH2) groups are the result of such metabolic reactions and can be toxic if ammonia (NH3) is formed from them. Ammonia tends to raise the pH of bodily fluids and interfere with membrane transport functions. To avoid this the amino groups are converted in
Ritalin
Ritalin
Ritalin The parents of six year old James Patrick Smith receive a phone call from the school guidance counselor informing them of their child's recent hyperactive behavior. After a short conference, the guidance counselor suggests to the parents a solution for young James' problem; as a result, the family visits their family doctor and the doctor diagnoses James with Attention Deficit Disorder (ADD) during a one hour appointment. To remedy the disorder, the doctor prescribes the savior drug fo
Death Penalty
Death Penalty
Death Penalty The death penalty has been around since the 1800’s. The death penalty, also known as capital punishment, is the punishment for murder. It has also been imposed for armed robbery, kidnapping, rape, and treason. A person who is incapacitated, is unable to commit a serious crime again. Today more than thirty-three hundred people are on death row and are sentenced to die by either life in prison without parole, electrocution, hanging, lethal injection, gas chamber, or by a firing squad