Laboratory Work

Chlorine chemistry is the building block for many products essential to our well being. Things that we take for granted every day — drinking water, modern medicine and housing, being just a few examples — all rely on chlorine products.Drinking Water and DisinfectionDrinking water chlorination has been called one of the most significant public health […]

Wind turbines utilize airfoils to capture the wind’s kinetic energy. The amount of air captured can vary depending on the variable being changed. A similarity between a blade and an airplane wing is their similar function. When the wind blows, both the downwind side of the blade and an airplane wing form a pocket of […]

I have been asked to find out if four fish and chip shops have been diluting their vinegar, to save more money. I do this by carrying out a few experiments, testing on the separate fish and chip shops vinegar samples. Apparatus: Vinegar samples Distilled Water Sodium Hydroxide Phenolphthalein Conical Flask Volumetric Flask Burette + […]

History: Martha Wilmington. a 74-year-old adult female with a history of arthritic febrility while in her mid-twentiess. presented to her doctor with ailments of increasing shortness of breath ( “dyspnea” ) upon effort. She besides noted that the typical puffiness she’s had in her mortise joints for old ages has started to acquire worse over […]

The apparatus will be set up as shown in the diagram above. Then I intend to- measure the starting temperature of water. add the indigestion tablet to the boiling tube. measure the volume of gas produced every 15 seconds until the reaction finishes (I will know that it has finished because there will be no […]

Why is the soft drink industry so profitable? An industry analysis through Porter’s Five Forces reveals that market forces are favorable for profitability. Defining the industry: Both concentrate producers (CP) and bottlers are profitable. These two parts of the industry are extremely interdependent, sharing costs in procurement, production, marketing and distribution. Many of their functions […]

Newton’s Law of Cooling, represented mathematically as dy = k(y-C) dx, states that the temperature of an object decreases at a rate proportional to the difference between its temperature and the temperature of its surroundings. By studying water cooling, we can determine when is the optimal moment to add milk to a cup of coffee […]

This experiment involves three major factors, gravitational potential energy, kinetic energy, and friction. Advancing Physics by Jon Ogborn and Mary Whitehouse has, I feel, the best explanation of the relationship between gravitational potential energy and potential energy. They use a tennis ball as an example: Hypothesis: The significant variables for this experiment are: Height of […]

About the Report This report seeks to examine Novartis International AG, a worldwide pharmaceutical company, and its leadership in planetary healthcare. It will offer information about the company’s history, strategic position, mission, and business strategy. These insights will reveal Novartis’ approaches for sustaining its industry dominance. The study explores the difficulties and possibilities encountered by […]

There are many factors that effect the distance travelled by a projected margarine tub, the three main factors being:  The mass of the margarine tub.  The type of surface where the margarine tub will be projected.  The amount of energy given (potential energy) For this investigation I am going to find out how changing the […]

Method 1 Mass of Mg = 0.12g Volume of Hydrogen = 128cm3 Treatment of results Mg + 2HCl ==> MgCl2 +H2 Method 2 Mass of magnesium from method 1 = 0.12 Weight of boat = 44.17 Weight of boat with solution = 52.84 Weight of boat with salt (MgCl2) = 44.74 Mass of MgCl2 formed […]

The volume of iodine solution needed to neutralize the sodium thiosulphate. You simply titrate the sodium thiosulphate against the solution of iodine using starch solution as an indicator. Then when you have calculated the concentration of the sodium thiosulphate can use it in turn as a standard solution, to find the concentration of the other […]

Iron is a transition element, and all transition elements may be found in a variety of oxidation states, for example, iron exists as both, Iron(II) and Iron(III). These kinds of elements can react with both oxidizing and reducing agents due to the fact that they can be converted from one oxidation state to another. Working […]

We are going to investigate the effect that different weights have on my parachute. We are going to construct a parachute and drop it from an unchanged height with different weights attached to it and record the results. To make my experiment, my parachute will be constructed from a black bin liner which will be […]

Effect of Baroque Music on Performance in Math Problem Solving Task among Grade Six Pupils of Zamboanga City State Polytechnic College A Research Proposal Submitted to the Faculty College of Liberal Arts Western Mindanao State University In partial fulfillment of the requirements in Psychological Research I Submitted by: Lilibeth Grifon Christie Annie M. Jalaron Audraiza […]

The solution was then cooled under a tap water. Followed by adding 0. 48 g of sodium nitrite to the solution and the solution was stirred until the sodium nitrite dissolved. Then, the solution was poured into a 250 ml beaker that contained 7. 5 g of ice and 1. 3 ml of concentrated hydrochloric […]

To investigate the impact of different lane curves (lanes 1-8) on running velocities, sprint reaction, and land contact time. Abstract: This study aimed to examine how various lane curves (lanes 1, 4, and 8) influence running velocities, sprint reaction, and land contact time. Six sprinters participated in the study (n=6) with an average age of […]

Concepts/Application: Writing chemical formulas, writing ionic equations, determining solubility, measuring acidity and basilica. Pre-Lab Discussion A salt is an ionic compound containing positive ions other than H+ and negative ions other than OH-. Most salts will dissociate to some degree when placed in water. In many cases, ions from the salt will react with water […]

As stated in the headline, this will be a plan to investigate the effects of temperature on the enzyme catalase in yeast and liver. But before I go in to detail about the experiment itself, the biology behind the reaction should be discussed. Starting with what will in great part control the reaction, some knowlegde […]

To find out the optimum concentration of calcium chloride (CaCl2) needed to be used by cheese manufacturing companies, in order for the milk used to produce the greatest mass of cheese from a given amount of milk to coagulate at its best rate. So that the rennet is at its most active effect therefore achieving […]

Enzymes, as biological catalysts, are essentially proteins composed of amino acid polymers. Their tertiary structure results in a globular shape, due to molecular bonding. Various bonds contribute to maintaining the structure’s shape, with the strongest being the di-sulphide bridges between cysteine amino acids. Hydrogen bonds are also present, but their strength increases when many exist. […]

I predict that if I increase the temperature of the orange juice, the concentration of the orange juice will decrease. This is because vitamin C is a fairly unstable molecule, and the greater the heat the more vitamin C molecules will be broken down. It takes activation energy to break down bonds and as we […]