Science
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4,609 Essays on Science. Documents 1,171 - 1,200
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Determination of the Empirical Formula of Silver Oxide
Lab 6 Determination of the Empirical Formula of Silver Oxide Cassidy Canberg ________________ ________________ Sources https://itstillworks.com/uses-silver-oxide-6106902.html https://sciencing.com/uses-silver-oxide-batteries-6012642.html https://www.eetimes.com/author.asp?section_id=36&doc_id=1322736 http://bigredchemistry.weebly.com/uploads/8/7/2/5/87251600/bunsenburnerbasics.pdf Uses Silver oxide is often used in carbon dioxide scrubbers due to their effectiveness in removing carbon dioxide from humidified air. Used in nuclear submarines, the international space station, and space shuttles. Silver oxide reacts with carbon dioxide with the presence of water to produce silver carbonate. Silver oxide is also often used in the manufacture
Rating:Essay Length: 269 Words / 2 PagesSubmitted: January 30, 2018 -
Determination of the Molarity of a Permanganate Solution Via Titration
Purpose: The purpose of this experiment is to determine the molarity of a permanganate solution through the use of redox titration. Theory: The following are the reactions that take place in the experiment: Unbalanced: H2C2 O4 (aq) + MnO4- (aq)  CO2 (g) + Mn2+(aq) H2C2 O4 Half-Reaction: H2C2 O4 (aq)  2CO2 (g) + 2e- + 2H+(aq) MnO4- Half-Reaction: 8H+ + 2MnO4-(aq) + 5e-  Mn2+(aq) + 4H20 (l) Net Reaction: 5H2C2 O4 (aq)
Rating:Essay Length: 830 Words / 4 PagesSubmitted: December 31, 2009 -
Determination of the Percent Yield of Sodium Acetate When a Chemical Reaction with Sodium Bicarbonate Occurs
Eric Escobedo 1st period December 8, 2016 ` 170985 Determination of The Percent Yield of Sodium Acetate When a Chemical Reaction with Sodium Bicarbonate Occurs 1. Design 1. Introduction 1. The purpose of this lab is to determine the percent yield of a chemical reaction between sodium bicarbonate (baking soda) and acetic acid (vinegar). When the two products reacted together, a double replacement occurred. This then changed to dihydrogen monoxide, carbon dioxide, and sodium bicarbonate,
Rating:Essay Length: 1,577 Words / 7 PagesSubmitted: January 15, 2018 -
Determine the Specific Heat of a Metal
Name: Jasmine Johnson Date: Exercise Number: 1 Title: Specific Heat Purpose: Determine the specific heat of a metal Materials: * Calorimeter * Sample metal block * Boiler * String * Bunsen burner * thermometer * Balance scale Theory: Define heat and temperature. What are the units of heat and temperature in metric and British systems? Define specific heat. Explain why specific heat has the same heat numerical value in metric and British systems. Heat (j/BTU)
Rating:Essay Length: 566 Words / 3 PagesSubmitted: September 24, 2014 -
Determining Gravity Three Different Ways
Determining acceleration due to gravity by three methods Purpose: To use three different methods to determine the acceleration due to gravity and see which is more accurate. Also to give us practical application and proof of the 9.8m/s/s law. Materials: Eraser, Video, stop watch, 2M stick Procedure: We measured 2M from the floor to a certain spot on the chalk board. Then we measured by hand with a stop watch how long it took for
Rating:Essay Length: 264 Words / 2 PagesSubmitted: March 3, 2010 -
Determining Optimum Environmental and Chemical Effects on Enzyme Kinetics
Abstract Enzymes, fundamental proteins that catalyze reactions by lowering activation energy, operate under kinetic principle and can react slower or faster with different ph and temperature levels. By finding this optimum temperature and pH through a process of spectrophotometery we can understand how many of the enzymes in our body function in different environments. I will examine a set of pH ranges and temperature ranges to find which one has the fastest reaction rate due
Rating:Essay Length: 1,127 Words / 5 PagesSubmitted: November 8, 2009 -
Determining Optimum Temperature and Ph for Enzymatic Reactions of Alpha Amylase
Enzymes lower the activation energy of chemical reactions but they themselves are not consumed or altered when doing so. These catalysts work best at optimum temperatures and pH’s. The temperature and pH at which the reaction occurs the quickest is the ideal condition for the enzymatic reaction. Alpha amylase converts starch into glucose and when starch is combined with I2KI indicator a dark purple solution forms. As the enzyme breaks down the starch the
Rating:Essay Length: 1,433 Words / 6 PagesSubmitted: January 10, 2010 -
Determining the Empirical Formula of a Compound
Science Lab 4B Kaitlin Doucet Mr. McIntosh Determining the Empirical Formula of a compound Objectives: -To form a compound from the elements iron and oxygen -To determine the empirical formula of a compound produced in this chemical reaction Supplies -Ringstand -Ring support -Lab Burner -Crucible -Crucible tongs -Water –soluble marker -Pipestem triangle -heat resistant mat -Centigram Balance _Lab apron -Safety goggles -Medicine dropper Chemical Reagents: -Steel wool, fine - 1M ammonium chloride soloution, NH CL
Rating:Essay Length: 642 Words / 3 PagesSubmitted: January 27, 2018 -
Determining the Source of Excess Phosphatase in Hypothetical Patient
Lauren Gray Determining the source of excess phosphatase in hypothetical patient Abstract Enzymes are diverse, biological catalysts that induce and regulate chemical reactions. Assays can be performed to determine the specific biochemical properties of enzymes that regulate the same reactions but have slightly different amino acid sequences. In stressed biological systems, enzymatic activities fluctuate and the source of a medical condition can be linked to abnormal concentrations of the specific isozyme that functions in an
Rating:Essay Length: 1,294 Words / 6 PagesSubmitted: December 20, 2009 -
Devastated Asia - Tsunami Attack
(Based on the December 26th attack) What Are Tsunamis, and What Causes Them? Tsunamis are ocean waves produced by earthquakes or underwater landslides. The word is Japanese and means "harbor wave," because of the devastating effects these waves have had on low-lying Japanese coastal communities. A tsunami is a series of waves that can travel at speeds averaging 450 (and up to 600) miles per hour in the open ocean. As the waves approach
Rating:Essay Length: 403 Words / 2 PagesSubmitted: January 11, 2010 -
Developing Countries Gain from Trade Liberalization
4. Developing countries gain from trade liberalization Developing countries do have much to gain from general trade liberalization. Trade expansion is positively linked to growth. Many industries will be affecting by the trade liberalization. Such as banking system and finical industry in developing countries. The internationalization of financial services is an important issue for the strengthening and liberalizing of financial systems in developing countries. The elimination of discriminatory treatment between foreign and domestic financial services
Rating:Essay Length: 941 Words / 4 PagesSubmitted: January 4, 2010 -
Developing Female and Male Germ Cells in Fetilisation
The female and male germ cells are reproductive cells that fuse with one another during fertilization (Burfoot, 1999). Each possesses unique characteristics and molecular structure during the pre-fertilization phase of development and post-fertilization. These characteristics are influenced by the production of various hormones in the male and female body. Fertilization occurs when the materials from two gametes come together to form an embryo. The female gamete is often referred to as the egg or female
Rating:Essay Length: 1,281 Words / 6 PagesSubmitted: February 16, 2010 -
Development of Ancient Medicine
Many different cultures have tried different methods as to find out about the causes of disease and how to treat different kinds of diseases. Various countries have come up with alternate cures and treatments for various diseases. These ancient societies compromise of China, Greece, Egypt and South America. They practiced a wide range of cures for their patients, and they specialize in different fields. For example, meditation and acupuncture were practices in China. Dissection, operations
Rating:Essay Length: 1,821 Words / 8 PagesSubmitted: January 16, 2009 -
Development Through Life Stages
Megan Ellison Life Stages 2B Development through life stages The different influences on an individual’s development Genetic influences Genetic influences that can have an effect on an individual’s development can be positive or negative. Genetics influences can cause a genetic disorders such as Down syndrome. Down syndrome is caused by all or some of the cells in the individual’s body contain 47 chromosomes, as there is an extra copy of chromosome 21. The additional genetic
Rating:Essay Length: 1,412 Words / 6 PagesSubmitted: March 23, 2017 -
Diabesity
Definition of diabetes: • When insulin is unable to play its proper role and no longer has the ability to process sugar causing glucose to accumulate in the blood. • Type I: immune system destroys beta cells in pancreas, disabling it to produce insulin, can be treated but not cured. • Type II: body’s cells don’t respond normally to insulin but it is still able to produce insulin, 90% of diabetes cases are this type.
Rating:Essay Length: 1,200 Words / 5 PagesSubmitted: March 21, 2010 -
Diabetes
Type 1 diabetes mellitus can occur at any age and is characterized by the marked inability of the pancreas to secrete insulin because of autoimmune destruction of the beta cells. It commonly occurs in children, with a fairly abrupt onset; however, newer antibody tests have allowed for the identification of more people with the new-onset adult form of type 1 diabetes mellitus called latent autoimmune diabetes of the adult (LADA). The distinguishing characteristic of a
Rating:Essay Length: 555 Words / 3 PagesSubmitted: November 29, 2009 -
Diabetes
Diabetes is a very serious disease that attacks millions of people around the world. It can strike at any age and can happen to anyone.The cause of diabetes is unknown.The disease is common in some families, but many diabetics have no know family history of diabetes. Diabetes affects 18.2 million people in the United States and is expected to double by the year 2010.Although we are not exactly sure about the causes of diabetes, we
Rating:Essay Length: 791 Words / 4 PagesSubmitted: December 17, 2009 -
Diabetes
The twelve o’clock lunch bell sounds in a high pitch but is quickly drowned out by the 4th grade students getting out of their desk and hustling to the front of the class room talking loudly about what they are going to do at recess. As the students file out of the classroom one young boy remains standing at the teacher’s desk. His name is Jack. As he waits impatiently for his teacher, he rips
Rating:Essay Length: 3,225 Words / 13 PagesSubmitted: December 27, 2009 -
Diabetes Case Study
Diabetes Case Study Diabetes is a disease in which the body does not produce or properly use insulin. Insulin is a hormone that is needed to convert sugar, starches and other food into energy needed for daily life. The cause of diabetes continues to be a mystery, although both genetics and environmental factors such as obesity and lack of exercise appear to play roles. An estimated 14.6 million people have been diagnosed with diabetes.
Rating:Essay Length: 917 Words / 4 PagesSubmitted: April 12, 2010 -
Diabetes Mellitus
Diabetes (794 words) Diabetes Mellitus is a debilitating disease that basically sucks the energy out of a person. This is caused by the failure of a person pancreas’s to produce valuable hormone called insulin. This failure in part causes a persons blood sugar level to be unbalanced, causing reduction in energy and maybe even nerve damage. In addition to this, diabetes can also be a major cause of adult blindness, the losing of maybe a
Rating:Essay Length: 799 Words / 4 PagesSubmitted: November 25, 2009 -
Diabetes Mellitus
Diabetes Mellitus My Independent Project is on Diabetes Mellitus, type1 Diabetes, or juvenile-onset diabetes. No matter what you call it, its all the same. Your pancreas has died and you have no other way to survive other than to inject insulin multiple times a day. I chose this project because I always enjoy learning more about the disease I got less than two years ago. Every year the teams of scientists from the Joslin clinic
Rating:Essay Length: 336 Words / 2 PagesSubmitted: June 4, 2010 -
Diabetes Mellitus
PDHPE SPEECH Good morning/afternoon Miss White and fellow students, today I’m up here to talk to you about diabetes. Diabetes mellitus is a chronic disease which occurs when there is an imbalance of insulin production which causes a disruption in the sugar level in the bloodstream. There are three main types diabetes of which are * Type 1 * Type 2 * Gestational Type 1 diabetes is caused by the body’s auto-immune system which is
Rating:Essay Length: 632 Words / 3 PagesSubmitted: June 6, 2016 -
Diabetes Prevention
Diabetes Prevention Diabetes is a disease that afflicts millions of Americans each and every year. For many of them diabetes has been with them for their entire lives, they have never known what life is like without it, others however develop diabetes as they grow older. “Diabetes is a caused by lowered levels of insulin which helps regulate the uptake of glucose into most cells from the blood” (http://en.wikipedia.org/wiki/Diabetes, 2006). There are 3 main types
Rating:Essay Length: 1,129 Words / 5 PagesSubmitted: April 15, 2010 -
Diabetic Teaching Plan for Nurses
C.S. is a morbidly obese 32-year-old female admitted to the hospital on 8/26/05 with an admitting diagnosis of poly-drug overdose. According to the patient, the last thing she remembers is going to bed and then waking up in the hospital 2 days later without any recollection of what had happened. She has a history of suicide twice in the past, but denies suicidal ideations this time. C.S. also has a history of Diabetes type
Rating:Essay Length: 1,318 Words / 6 PagesSubmitted: March 11, 2010 -
Diagnostic Psychiatric Evaluation
Initial Evaluation of: Howard Smith Date of Evaluation: September 24th, 2015 Evaluated by: Zoe Blacksin, M.D. DIAGNOSTIC PSYCHIATRIC EVALUATION PATIENT NAME: Howard Smith DATE OF BIRTH: August 1st, 2003 DATE OF EVALUATION: September 24th, 2015. EVALUATED BY: Zoe Blacksin, M.D. (Evaluation Report written by Miriam Vela Garcia) AGE: 12 years INFORMANTS: Elias and Roberta Smith, biological parents, and patient. REFERRED BY: N/A PRESENTING PROBLEMS: Chief Complaint: Howard’s mother expressed her concern by stating, “sometimes he
Rating:Essay Length: 2,757 Words / 12 PagesSubmitted: February 15, 2018 -
Diamond Chemicl
CASO DIAMOND CHEMICALS PLC (A) THE MERSEYSIDE PROYECT COYUNTURA El proyecto consiste en la modernización de la planta y el uso eficiente de las materias primas de Merseyside construida en 1967. La compañía atravesaba una caída producto de la economía mundial y tenía acumulado el pago de acciones las mismas que se habían reducido a un resultado neto por acción de £60 a £30. La inversión estimada seria de £ 9 millones de libras esterlinas
Rating:Essay Length: 366 Words / 2 PagesSubmitted: September 18, 2014 -
Dian Fossey
Dian Fossey Dian Fossey to me was a very mysterious, somewhat helpful and kind of troublemaking person. She seemed very adventurous and fun but she was also very serious. When it came to her job she was always serious. Dian Fossey studied gorillas. To me it is amazing how seriously she took that job. She did everything she could to protect those gorillas. I think the gorillas brought her happiness but also sadness, and other
Rating:Essay Length: 1,190 Words / 5 PagesSubmitted: December 11, 2009 -
Dichotomous Table Lab
Wildflower Dichotomous Key 1A. One Stem Go to 2 1B. Multiple Stems Go to 3 2A. Three Large Leaves below small flower Trillium 2B. Different appearance Go to 4 3A. Arrow-shaped leaves Arrowhead 3B. Five-petaled flower with 4 leaves Violet 4A. 2 large leaves at top May apple 4B. Different appearance Go to 5 5A. Bell-shaped flower Bellwort 5B. Almost Spherical flower Clover Pre-Lab 1. At each step, the dichotomous key provides 2 choices. 2.Some
Rating:Essay Length: 282 Words / 2 PagesSubmitted: December 15, 2009 -
Diet Anaylsis
A.) Throughout my whole diet analyzed project I found out that almost every category was significantly above the standards. My calories where averaging about 150 percent each day, which is okay for a very active person like me that needs the calories. But the category's that lacked some what was my dietary fiber, it generally stayed around 75 percent. Also my Vitamin E was significantly lacking, and that average around 35 percent. B.) On average,
Rating:Essay Length: 317 Words / 2 PagesSubmitted: March 24, 2010 -
Dietary and Nutritonal Information
Dietary Analysis Information Diet is extremely important in maintaining a healthy lifestyle. It has become especially important in the past few weeks as I was recently diagnosed with type one diabetes. This means that I have to watch carbohydrate intake and take the correct amount of insulin for it. Therefore watching what I eat and the amounts I consume is imperative. As I recorded the food I ate and logged it into the YMCA website,
Rating:Essay Length: 336 Words / 2 PagesSubmitted: March 14, 2010