Introduction Catalysis is the acceleration of a chemical reaction by a substance called a catalyst. Enzymes increase the reaction rate, causing the reaction to make more product. Proteins are large, complex molecules composed of chains of amino acids. The three-dimensional structure of a protein is critical to its function, as it determines how the protein…
Abstract: The Law of Conservation of Mass is an important principle to the scientific community and the world of chemistry. The objective of this lab was to verify if this law holds true. This law is beneficial in chemistry as it allows us to predict the final products of a chemical reaction. In this lab,…
Companies all over the world have a goal to strive and make money. However, is making money the main objective for these companies or do they honestly want to influence society in a positive way? In 2016, Colin Kaepernick, the famous NFL quarterback, refused to stand up for the U.S. national anthem to protest against…
Purpose To understand the nature of projectile motion launched horizontally as well as launched at an angle. Introduction In horizontally launched projectiles, vertical velocity Vy is zero and g is 9.8 m/s2. If we know the vertical height of the launching position d, we can calculate time of flight using the equation d = Vyt…
Key Plot Points: Setting: Platform/Beach: The boys met at the platform/beach for meetings. This is also where Ralph and Piggy found the conch at the beginning of the story and this conch is a significant item in the book. Because the beach is also the closest area to the ocean, this could potentially be a…
In a dance as old as time, where imagination meets truth, the interplay of storytelling and nonfiction creates a captivating symphony of knowledge, blurring the lines between reality and the power of narrative. Gregg Olsen’s true crime novel, A True Story of Murder, Family Secrets, and the Unbreakable Bond of Sisterhood, masterfully combines storytelling techniques…
Method A: Clinometer Measurements and Calculations: Procedure 1. Choose a tree and stand at a distance away from the tree where the top of the tree can be seen 2. Direct Clinometer towards the top of the Tree from the height of the eye 3. Record the angle observed while staying stationary from the…
Data Table Material Mass (g) Empty labelled beaker 108.43g Copper (II) chloride dihydrate; CuCl2 · 2H2O 4.98g Iron (steel wool); Fe (s) 1.02g Beaker containing clean, dry copper 110.02g Analysis a. Identify the precipitate that was formed in the reaction : Fe (s) + CuCl2 (aq) → Cu (s) +…
Purpose: To critically explore how osmosis occurs within a semi-permeable membrane with a variety of concentrations of sugar solutions. Hypothesis: If the 20% concentrated sucrose solution is placed in distilled water, then the weight of the dialysis bag will increase because the fluid within the dialysis bag is hypertonic to the environment. Thus, they will…
Where Oilseeds Can Be Found in Canada (Geographic Location): Oilseeds are grown in various regions across Canada. Some of the places where oilseed production includes the Prairie provinces of Alberta, Saskatchewan, and Manitoba, along with Ontario and Quebec. Prairie Provinces (Alberta, Saskatchewan, Manitoba): Ontario: Quebec: Where Are Oilseeds Extracted and Processed: Oilseeds are normally extracted…
INTRODUCTION Sodium polymethacrylate is an example of a condensation polymer. On its own, it is tightly wound and appears like a granule of sugar. The monomer of sodium polymethacrylate is shown below. When water is added, the polymethacrylate will absorb the water through osmosis. As a result, hydrogen bonds with the oxygen in water. As…
Introduction This lab is an experiment involving thermodynamics that aims to determine the enthalpy change of a chemical reaction through calorimetry. Enthalpy is a thermodynamic quantity that is related to the amount of heat released or absorbed during a chemical reaction. Hess’s law is based on the principle that the enthalpy change of a chemical…
Introduction Every day substances are constantly being altered in some way. These altercations can be classified as physical or chemical changes. Physical changes are altercations in which the chemical composition of a substance remains constant. A common example is the change in the state of matter of dihydrogen monoxide (water – H2O). Its physical properties…
Purpose: To calculate the percentage of H2O2 in a bottle of drugstore hydrogen peroxide by titrating with a standardized potassium permanganate solution. Background: Hydrogen peroxide, H2O2, is easily oxidized. It is used in commercial bleaching processes and wastewater treatment plants as an environmentally friendly alternative to chlorine. Dilute solutions of H2O2 are used to bleach…
Methyl salicylate C6H4 (HO) COOCH3, also known as salicylic acid methyl ester, oil of wintergreen, is a natural product of many species of plants. Methyl salicylate may be used by plants as a pheromone to warn other plants of pathogens such as tobacco mosaic virus. Methyl salicylate is used in deep heating liniments and in…
Hess’s Law is an advantageous concept in thermodynamics which states that regardless of the multiple steps or stages in a reaction, the total enthalpy change for a reaction will always be the total sum of all enthalpy changes. The heat created during a combustion reaction is measured by the enthalpy of combustion per mole of…
Former US President, Barack Obama once said, “We are the first generation to feel the effect of climate change and the last generation who can do something about it.” Since the 19th century, the average global temperature has risen by over 2 degrees Fahrenheit. This number seems small but in reality, this increase in temperature…
History is described as the change of events over time, but in history, there are constants, and one such constant is war. As said by Greg Bradenn, “War is not human nature. It is a habit”.[1]Throughout history, war has ingrained itself in the human mind. Conflict and battle, occurring in repetitive cycles throughout history as…
Cornstarch: Upon adding 2 mL of cornstarch to the mixture, a visible change was observed. The mixture exhibited a significant increase in volume and took on a snow-like appearance, becoming more puffy. Stirring the mixture with a stirring rod gradually transformed the mixture’s color into a clear opaque white. Sugar: The addition of 2 mL…
There are moments in our lives that break us, changing us in unimaginable ways. Elie Wiesel, author of Night, has lived his life as a Holocaust survivor and has gone through things that are incomprehensible for many of us. He showcases the horrors that he and millions of Jews went through in the form of…