Acid Essay Topics

Pickles and Fermentation

The word pickle derives from the Dutch word pekel, meaning brine or a salt and water solution for pickling. Pickles are cucumbers put through the pickling or brining process. Pickling process dates back to ancient times that was and is still used in persevering food by anaerobic fermentation in brine to make a lactic acid,… View Article

Impetigo and Topical Fusidic Acid

Dobie and Gray stated that for more than 35 years Fusidic acid – a narrow spectrum antibiotic derived from Fusidium coccineum has been used to treat infections from Staphylococcus aureus thus making it suitable in combination with another agent for systemic therapy in vitro. In spite of controversies and recommendations, the usage of topical fusidic… View Article

Litmus Milk Procedural

Litmus milk is a complex medium that can potentially distinguish many species of bacteria. Litmus milk has several components that can be metabolized: lactose (milk sugar); casein (milk protein); and litmus (a pH indicator). If lactose is fermented, the solution should turn pink. If gas is produced during fermentation, you may be able to see… View Article

Milk – Protein

Everyone has heard the saying “drinking milk helps build strong bones”, but is this really true? According to Walter C. Willett, chairman of the Department of Nutrition at the Harvard School of Public Health, “There’s no solid evidence that merely increasing the amount of milk in your diet will protect you from breaking a hip… View Article

Chemistry of Coffee

Before coffee is roasted, it is referred to as “green coffee”. The green coffee is primarily made up of caffeine, lipids, carbohydrates, proteins (amino acids), and organic acids (although inorganic acids exist in coffee as well). These groups are quite stable in the green phase, and it is the carbohydrates, proteins, and acids that will… View Article

Example of a Research Plan

Statement of the Problem The aim of the study is to identify the effect of different pH level of the Agar plate to the antibacterial activity of Santol (Sandoricum koet jape). Specifically, the study will seek for the answer of the question: 1.) Is there any difference on the No.of colonies after applying Santol (Sandoricum… View Article

Factors That Affect the Rate of Reaction of Peroxidase

Purpose: To determine the effect of various factors on the rate of reaction between an enzyme andits substrate, and also to determine the optimal ranges under which the enzyme activity ismaximized. Also to determine whether saline and alcohol are inhibitors or activators Hypothesis: PH factor prediction: I predict that as the pH increases so the… View Article

Science Investigatory Project

Abstract The pineapple is one of the leading products in the Philippines, as it thrives in tropical climates. However, the pineapple peelings have low commercial value and are therefore merely thrown away, contributing to the Philippines waste problem. This study entitled “Saccharification of Pineapple Ananas comosus peelings through Dilute Acid Hydrolysis” was conducted to know… View Article

Determination of the Valency of Magnesium

To study the quantitative relationship between the amount of reactant and products of a reaction. A known starting mass of magnesium and the measured collection of hydrogen gas will be used to determine the reaction stoichiometry and the valency of magnesium. Introduction: In Chemistry, stoichiometry is the study of the quantitative relationship between amounts of… View Article

Science Neutralizing Lakes

Part 1 – Design a strategy for neutralizing Fish Lake What do I know? (What do I remember about the neutralization reaction) Neutralization is when an acid and base are mixed together to me an ionic compound or which are 7 on the pH scale or pure water, it is also when a base and… View Article

Experiment 4 Rdr – Chemical Equilibrium

Iron-Silver Equilibrium In the first phase of the experiment, iron sulfate was mixed with silver nitrate, and the reaction produced solid silver and iron nitrate, which is formally written as, Fe2+ (aq) + Ag+ (aq) ⇄ Ag (s) + Fe3+ (aq) The mixture was then placed in a centrifuge in order for the solid silver… View Article

Factors Affecting the Rate of Catalase Activity

Factors affecting the rate of catalase activity The extent at which environmental factors affect the rate of catalase activity was discovered in this lab. The assay system, in which a filter paper disc was dipped into the enzyme and submerged using a stirring rod in a test tube filled with 20mL of hydrogen peroxide, was… View Article

Effect of Ph on Food Preservatives

Sodium Benzoate is a common food preservative used in food products such as jams and jellies, soft drinks, pickles, condiments etc and in tinned products in the market. This experiment aimed to determine whether benzoic acid is formed from it’s superior soluble form sodium benzoate in stomach acid, which is simulated by HCl (pH=2). It… View Article

Chemistry Honors Titration Lab

A Titration is a process of the concentration of one solution being determined by its reaction with either a standard solution or a known quantity of solid dissolved in solution. It may also be used to calculate the molar mass of an unknown acid or base. Purpose: I. Prepare a standard solution of sodium hydroxide… View Article

Homework Assignment

Use the information presented in this module along with additional outside research to answer the questions: 1. Describe how applied microbiology is used to improve aspects of life and the environment. Microbiology is the study of microorganisms (VanMeter, VanMeter, & Hubert, n.d., p.3). These are all of the things not visible to the human eye…. View Article

Which Antacid Neutralizes Acid the Best?

Description This experiment was conducted to find out how effective different types and brands of antacids are at neutralizing acid. I also looked at the cost of each product in order to determine if my hypothesis would be correct. The experiment was done using 4 brands of antacid, Pepto-Bismol, Gaviscon, Tums and Tagamet. Hypothesis All… View Article

Acids, Bases, and Neutrals

Experiment Acids, Bases, and Neutrals Problem Are common house-hold products pH balanced and neutral? Information Gathered pH measures how acidic or alkaline a solution is. The pH scale ranges from 0-14. Solutions that range from 0-6 are considered to be acidic. Solutions that are on the acidic end of the scale are low in pH,… View Article

A Separation and purification Scheme

Abstract: There are millions of different organic compounds. Most of them are found in mixtures and in order to achieve a pure form they need to be separated, isolated, and purified. However, there are endless numbers of possible mixtures, which make it impossible to have a pre-designed procedure for every mixture. So chemists often have… View Article

Lab Enzymes

Introduction How does changing the surroundings of enzymes affect their reaction rate? The purpose of the experiment is to determine how different abiotic conditions affect the rate at which enzymes accelerate/cause reactions In this lab students measured the height of the foam after catalysis between catalase (enzyme) and 7 other (solutions) to determine which solution… View Article

The Effectiveness of Distilled Water

Chapter I Introduction This chapter includes the prevailing problem situation based on observations. also, the objectives, scope and limitation, significance of the study, definition of terms and conceptual framework are included. I. Background of the study Students in various parts of the Dasmariñas are finding difficulties in procuring proper and economical equipment for their experiments… View Article

Back Titration

1. SYNOPSIS The purpose of this experiment is to use the back titration method to determine the percentage of calcium carbonate in toothpaste. Instead of using standard titration methods where an acid is titrated directly using a standard solution of a base, back titration is used because the sample to be analysed, CaCO3 does not… View Article

How the PH changes during a titration experiment

Having a higher concentration of alkali will mean that there will be more molecules closer together for the acid to collide with. This will speed up the reaction as collision theory suggests that molecules have to collide to react and if there are more molecules to collide with the reaction will happen faster as there… View Article

Aldol reaction

In this preparative lab, an aldol (trans-p-anisalacetophenone) was produced from the reaction between p-anisaldehyde and acetophenone with the presence sodium hydroxide. The reaction also showed the importance of an enolate and the role it played in the mechanism. Sodium hydroxide acts as a catalyst in this experiment and is chosen because of its basic conditions… View Article

Titration Lab Discussion

Like any titration, neutralization titrations depend on a chemical reaction between the unknown solution and a standard reagent. The point of chemical equivalence is indicated by a chemical indicator or an instrumental measurement. When the color changes to the specified color, the titration has reached endpoint. The mole ratio and volume relates the concentration of… View Article

Titration: Identification of an Unknown Amino Acid Biochemistry

Abstract Water is important substance for all living organisms. The physical and chemical properties of water play a central role in biological structure and function of the organism. The ionization ability of water to form H+ and OH- ions make it very unique. The hydrogen-ion concentration of biological system is usually preferred as the pH… View Article

Handling a Sulphuric Acid Spill

There has been a spill of concentrated sulphuric acid at the chemical plant where I work at as the Safety Engineer. In this report, I will explain what Sulfuric Acid is, the health risks and hazards associated with it, the safety precautions that should be taken and how the spill should be handled. Sulfuric Acid,… View Article

Geography Internal Assessment

First, the channel width (A. on figure 3) was measured. This was done by using a tape measure. The tape measure was held tight from bank to bank, along the water surface. Starting from 0 on the tape, the depth of the water in centimeters was measured. Once the width was taken, that measurement was… View Article

Effect of Dissolved Carbon Dioxide

Introduction: ((Carbon Dioxide is a greenhouse gas. It is everywhere ranging from our bodies to the atmosphere. Carbon dioxide is produced in living organisms as a result of cellular respiration (glucose + oxygen –>carbon dioxide + water + energy). It occurs in high concentrations in the tissues in our body. It then diffuses in the… View Article

Effect of pH Levels on the Growth of Bean Plants

Different pH level may affect the growth and development of the plants. Certain key words include: pH level, germination, acidity, osmosis and diffusion. This experiment examines the effects of different pH level of vinegar on the growth of bean plants. Materials used in this experiment consist of: water (pH 6), vinegar with the pH level… View Article

The Influence of pH on the Activity of Catalase Enzyme

INTRODUCTION Enzymes are vitally important for every living organism, because without them the reactions within the cells would occur to slow to sustain life. However there are many factors which affect the rate of enzymes reactions. One of them is pH, which influence on the enzyme activity will be the subject of this investigation. Catalase… View Article