Enzyme Kinetics of Beta-Galactosidase

Enzyme Kinetics of Beta-Galactosidase

The higher the enzyme concentration, the higher the absorbance value. Different molecules absorb different wavelengths of light. For this experiment, the spectrophotometer is set at 420nm, so that we can obtain the best absorbance results. ONPG >galactose+ o-Nitrophenol A catalyst … Continued
The Occurrence of Osmosis and Diffusion in Artificial

The Occurrence of Osmosis and Diffusion in Artificial

The first part concentrated on the placing potato cylinders in different sucrose concentrations for a period of time. This part was conducted to see if the potato cylinders would gain weight or lose weight because of osmosis. The second part … Continued
Osmosis Experiment

Osmosis Experiment

Measure the length and width of a second raisin and place it in one of the salt water containers. Measure the length and width of a grape and place it in the second of the plain water containers. Measure the … Continued
Importance of Chemistry

Importance of Chemistry

Importance of Chemistry Chemistry is an important branch of science. Chemistry deals with the matter that form our environment and the transformation that the matter undergoes. Chemistry is therefore, useful in understanding the changes taking place in the constituents of … Continued
Chemistry

Chemistry

The objective of this lab was to show how stoichiometry is applied to a specific chemical reaction. Stoichiometry is pretty much the math behind chemistry. Doing stoichiometry can calculate masses, moles, and percents with a chemical equation. The use of … Continued
Health Hazards of the Dye Industry

Health Hazards of the Dye Industry

The first step in prevention of poisoning in the dye industry includes well-ventilated, properly equipped buildings. Selection of workmen is important and the use of the best methods in manufacturing. These investigations, which are based on 2,500 employees, whose blood … Continued
Coca Cola

Coca Cola

Abstract The treatment process employed by most bottle washing plants for the recovery and recycle of water from sodium hydroxide bottle washer effluent involves filtration. activated carbon adsorption and ion exchange. The major disadvantage of the ion-exchange system is that … Continued
Autobiography of an Atom

Autobiography of an Atom

pADVENTURES of an Atom By: Nicole Zemaitis Atom-Smallest particle of an element that retains the properties of the element. Scientific discovery is how the present day Atomic Theory was made up. The current atomic theory was formed by different scientists … Continued
Tok Paper

Tok Paper

While this maybe a knowledge claim, a possible counter claim would be “the certainty of the different areas of knowledge affect our sense perception and language and this in turn makes us understand things differently” and for this paper, this … Continued
Microbiology Laboratory Safety and Basic Procedures

Microbiology Laboratory Safety and Basic Procedures

Safety in a microbiology laboratory is important in the prevention of infection that might be caused by the microorganisms being studied. This laboratory does not require the use of virulent human pathogens. However, many types of microorganisms are potentially pathogenic. … Continued
Osmosis in Quails’ Egg

Osmosis in Quails’ Egg

Title: Osmosis in quails’ egg Aim: To observe the effect of different concentrations of sodium chloride on a de-shelled quail’s egg To explain the effects in terms of osmosis Research Questions: Does the different concentrations of sodium chloride on a … Continued
Photosynthesis – Biology Practical

Photosynthesis – Biology Practical

Pattern of Result: Observation that can be seen from the graph is that the line of best fit for own results and class results increases as the concentration of carbon dioxide increases. Also, the graph shows that the class line … Continued
Rate of Photosynthesis Lab Report

Rate of Photosynthesis Lab Report

Title: Rate of Photosynthesis Introduction: Photosynthesis occurs in plants where the light energy changes to chemical energy. This process occurs in the chloroplast of the plant cell in order to have gas exchange in the organism. Purpose: To measure the … Continued
Go Green

Go Green

The efforts by organizations to produce, promote, package, and reclaim products in a manner that is sensitive or responsive to ecological concerns. Until recently, the retailing definition was considered by the AMA to be sufficient. Thankfully, the definition has expanded … Continued
Synthesis of Trans-Stilbene

Synthesis of Trans-Stilbene

The purpose of this experiment was to perform a wittig reaction, the horner-emmons wittig specifically, reacting an aldehyde with an ylide to make an alkene. This particular variation of the wittig reaction has several advantages: It gives only the trans … Continued
Diels Alder Lab Report

Diels Alder Lab Report

Be sure to address any questions posed in the lab procedure as well as any additional questions that your TA wants you to answer. You should also analyze any NMR spectra that you have from the reaction (if applicable). Spectra … Continued
Study of Osmosis in Living Plant Tissue

Study of Osmosis in Living Plant Tissue

Objective: To study osmosis in living plant tissue. Biological principles: Water potential is the tendency for water molecules to enter or leave a system by osmosis through a differentially permeable membrane, while osmosis is the process in which water molecules … Continued
Kamias Soap

Kamias Soap

The researcher asked 10 respondents; 8 teachers, 1 laboratory technician and 1 housewife to test and evaluate the product. The respondents were asked to used the product and observe its effect on their skin. After enough days, they were asked … Continued
Natural Causes of Climate Change

Natural Causes of Climate Change

Natural causes of climate change within the model are livestock (cows) producing methane gas. Human-made causes that can be seen are deforestation for crops, homes, and businesses. Pollution from cars and planes realeases CO2 into the air and the use … Continued
Enzyme Lab Report

Enzyme Lab Report

Influence of Concentration on the Activity of Amylase Title Influence of Concentration on the Activity of Amylase Abstract Does more or less concentration speed up the reaction rate of amylase in starch? In this experiment diluted solutions of amylase were … Continued
Lab Report

Lab Report

Lab Report 1 ?Introduction: Proper chemical formulas entitle many challenges such as the Law of Multiple proportions that states that there may be more than one plausible mole ratio for the elements in that compound. However if we determine the … Continued
Gravimetric Analysis

Gravimetric Analysis

Jeff Marasigan Abstract Gravimetric analysis is based on the quantitative isolation of the desired constituent the analyte of interest from the sample in highly pure form or in some combined form and weighing the isolated constituent. The desired constituent is … Continued
Complete Combustion Factors

Complete Combustion Factors

On the flip side, incomplete combustion results in some of the carbon atoms combining with only one oxygen atom to form carbon monoxide and other potentially harmful by-products. Usually, the combustion process is triggered by heating a hydrocarbon above its … Continued
Gravimetric Determination of Phosphorus in Fertilizer Samples

Gravimetric Determination of Phosphorus in Fertilizer Samples

More than 50% of fertilizers are composed of nitrogen, phosphorus and potassium because these three nutrients are essential but are deficient in soils. To ensure good quality of fertilizers, it is significant that the amounts of these nutrients are quantified. … Continued
Analysis of Toy Cars for Heavy Metal Content

Analysis of Toy Cars for Heavy Metal Content

Two different digestion methods were followed, and both confirmed the presence of Ba and Fe, although the concentrations obtained by each method differed: higher values m/m% was obtained for all samples digested by HCl than for samples digested by acetic … Continued
Chemistry in Striped Toothpaste

Chemistry in Striped Toothpaste

In the Chapter on Acids & Bases, we learned that Magnesium Hydroxide Mg(OH)2, an Basic Oxide is used to make toothpaste. After each meals, there will certainly be a significant amount of food substances that are stuck in-between our teeth. … Continued
Solution and Concentration in Chemistry

Solution and Concentration in Chemistry

A solution is a homogeneous mixture, made up of a solute dissolved in a solvent. Ex. In a water (aqueous) solution of sodium chloride, the sodium chloride is the solute and the water is the solvent. Solute – the component … Continued
Insecticidal Property of Acacia Seeds and Bark Against Termites

Insecticidal Property of Acacia Seeds and Bark Against Termites

Seeds and Bark Against Termites (Coptotermes vastator). A study on the insecticidal property of Acacia seeds and bark against termites was conducted to find out if these could be used against termites. The experiment was conducted at the laboratory of … Continued
Surface Chemistry

Surface Chemistry

It is the phenomenon in which a substance is uniformly distributed all over the surface. Difference between adsorption and absorption: Absorption (i) It is the phenomenon in which a substance is uniformly distributed throughout the bulk of the solid. (ii) … Continued
Alcohol Combustion

Alcohol Combustion

To find out difference in the heat of combustion for different types of alcohols. Hypothesis The higher the number of carbon atoms in an alcohol is, the higher the energy for the heat of combustion. Alcohol is a homologous series, … Continued