Experiment Essays

Abstract: The purpose of this experiment was to nitrate naphthalene with nitronium ion, which is formed at low concentration from a reaction of nitric acid and sulfuric acid. The percent yield from the experiment was 54.4% of the product, and the melting point of the possible results were 59 °C …

Introduction The purpose of this experiment is to illustrate how a solid natural product can be extracted from its natural source through the use of an organic solvent. Natural products are organic compounds that are synthesized by natural biological processes in plants, animals and microorganisms. These products typically occur in …

Purpose: The purpose of this experiment is to gain knowledge of the functions and operations of the compound light microscope and an immersion oil lens by observing prepared slides of various bacteria and blood slides. We are also learning to indentify and observe the various shapes and characteristics of bacteria, …

A. Objective This experiment will provide data to calculate the acceleration of a marble as it rolls down an incline plane over measured periods of time. To do this, the marble’s velocity will be determined and then its acceleration. 1. What is the distance between two marks in your inclined …

Abstract:The Stanford experiment was performed by psychologists Craig Haney, W. CurtisBanks, and Philip Zimbardo. Their goal was to find out how humans deal with a position ofpower and a position of being powerless.. However, even though their experiment ended upwith great results, still, they were not able to finish it …

Introduction: Piaget believed that there were four main stages in which children pass during cognitive development. The sensorimotor stage lasts for the first two years of a child’s life, and learning primarily occurs through their senses. The child will also develop object permanence. The pre-operational stage is where a child’s …

The chemical compound potassium nitrate is a naturally occurring mineral source of nitrogen. It is a nitrate with chemical formula KNO3. Its common names include saltpetre (from Medieval Latin sal petrae: “stone salt” or possibly “Salt of Petra”), American English salt peter, Nitrate of potash and nitre. The name salt …

Experiment1 Separation of mixtures by filtration and crystallisation Background The separation of a mixture of two solids can often be achieved by filtration and crystallisation. To be successful, this requires that the components of the mixture have different solubilities in a particular solvent. AimThe purpose of this experiment is to …

This purpose of this experiment was for students to do the colony count methods, estimating the viable cell number of commercial active dried yeasts (ADY). This experiment allowed the students to perform the plate count technique by serial dilution and two common methods, spread plate and pour plate to determine …

This experiment focused on extracting and separating pigments of Chloroplast. For the procedure green leaves were grinded in a mortar with some chemicals and the fluid was filtrated to use for further analysis. Stripes of this solution were put on a filter paper and later, after dried placed into a …