Experiment

Roly Poly Lab

Pillbug “Roly-poly’ Behavior LaB Purpose: The purpose of this lab is to observe the behavior of the Armadillium vulgare (roly- poly bug), as well as hypothesize whether it will be attracted to, repelled by, or unresponsive to certain substances. Methods 1. Observing the pillbug: examine the pillbugs shell and body, shell shape, color, texture, number […]

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The Effects of Temperature on Beetroot Cell Membranes Argumentative

Tube was removed and the water in the test tube was tipped out. 10ml of tap water was then added to it and then left to stand in the test tube rack. The beaker was then heated to 35c. The burner was then turned off and the water’s temperature was left to rise to 40c. […]

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Quantitative Determination of Sulphate By Gravimetric Analysis Essay Sample

The aim of this experiment is to find the sum of sulfate by hydrometric analysis. The sum of sulfate is determined quantitatively as Ba sulfate. BaSO4. by hydrometric analysis. For the experiment. a dilute solution of Ba chloride was easy added to a hot unknown sulphate solution somewhat acidified with concentrated HCl. The precipitate is […]

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Effect of Growth on Mung Bean Solution

Effect of Salt Solution on Mung Bean Growth Hypothesis: If the Mung Beans are watered with a higher salt solution, then less Mung Beans will sprout. John Murrell 9-18-12 Magnet Biology Introduction This experiment was done to test the effect of salt solution on mung bean growth. Generally when you grow mung beans you soak […]

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What Kills Germs LAB

Hypothesis: If the most effective solution for pathogenic bacteria is household bleach, then the descending order from best to least are household bleach, Penicillin, Monoclinic, Household Disinfectant, Anti- Bacterial Soap, Erythrocyte, Sterile Filter Paper. Materials: The materials used in this lab include a agar, a Petri dish, test tubes containing the pathogenic bacteria: Staphylococcus erasures, […]

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Male and female visual abilities

The purpose of this experiment is to know if males are better than Females when estimating sizes. Methodology For this experiment 10 Females subject and 10 Male where needed. All of them are around the age of 18-23 years old, and same coloratura environment. The material that was used was going to be 2 pieces […]

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The Effect of Osmosis on Potato Cells

Introduction In this experiment I am going to investigate the effect of varying concentration of a differing glucose solution on the amount of osmotic activity, between the solution and a potato tuber of a given size. The purpose of this experiment is to demonstrate how living cells rely on osmosis, the diffusion of water. Osmosis […]

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Determining the Number of Water Molecules in a Hydrate

During the experiment there were some mistakes in the data cause of human error. Scientists accidentally spilled the hydrated copper sulfate after the second measurement though It lost 0. 07 g when It was only supposed to As is explained in question two below, when not all of the water is driven off there is […]

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Hydrochloric acid

Introduction For this experiment we studied an oxidation-reduction reaction of magnesium and hydrochloric acid solution. We compared the experimental measured amount of a product and the amount predicted by the theoretical calculation of a balanced equation: First we obtained a strip of pre-cut magnesium ribbon, cleaned it with steel wool to remove any signs of […]

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Essay about Microscale Crystallization of Sulfanilamide

The purpose of the experiment was to use the crystallization technique to purify the solute sulfanilamide using 95% ethanol as the solvent, to calculate the amount of sulfanilamide that was recovered, and to determine the purity of the final product. Introduction In this experiment, recrystallization will be the method used to purify the solute sulfanilamide […]

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Investigating Sternberg’s Memory search Paradigm

Many experiments have been conducted similar to Sternberg’s Memory Search. Some of which supported his claims and others contradicting them. This experiment did both. Supported his claims that the process involved in memory searching was serial not parallel, but the process is self-terminating not exhaustive. However, many other factors that were not considered in this […]

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The preparation of alum from scrap aluminium

In the preparation of alum from scrap aluminium experiment various techniques and apparatus was used to obtain pure alum crystals. During the procedure various potential hazardous chemicals was used and care had to be taken at all times when handling it. Protective clothing and eyewear had to be worn during the whole experiment. Initially a […]

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Critically consider the impact of 3 environmental factors on anti-social behaviour

Anti-social Behaviour can be provoked by a range of different factors. Many of these are triggered through human actions ,but some can be caused by non human actions such as environmental factors. Environmental factors which can influence anti-social behaviour include ;- overcrowding, temperature and noise.Donnerstein and Wilson investigated the effects of noise on aggression in […]

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Chemistry lab on saturated and unsaturated fats

Classic chemistry experiments Inaugurations in fats and oils Topic Organic chemistry, saturated and unsaturated fats. Timing 45 min. Description The students titrate different oils and fats mixed with Volatile against bromine water. Apparatus and equipment (per group) w White tile w Conical flask w Dropper pipette. (Use the type of teat pipette usually fitted to […]

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Chemistry Experiment Paper

This project was done with the aid of a lot of people. I take this chance to express my gratitude to Mrs. . Handmaid Bit. Mad for the guidance and motivation that contributed tremendously to this project. My thanks and appreciations go to my friends in developing this project too. TITLE Analysis of Vitamin C […]

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Vitamin c investigation Chemistry

What kind of acid is it-monophonic, dipodic or what? What is the equation of the reaction between ascorbic acid and sodium hydroxide? What is the name and structure of the conjugate base of ascorbic acid? Ascorbic acid is a monophonic acid. The conjugate base of ascorbic acid is acerbate and has the structure CHICHI-. In […]

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[Pharmaceutical Chemistry] Melting Point and Boiling Point

Elmira Department of Pharmaceutical Chemistry, College of Pharmacy University of the Philippines Manila The Health Sciences Center Valuable Hall, Taft Avenue, corner Pedro Gill SST. Eremite, Manila Philippines Keywords: Melting Point: temperature at which a solid changes state from solid to liquid at atmospheric pressure. Boiling Point: temperature at which the liquid has a vapor […]

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Chemistry Water quality testing

Abstract: The aim of the experimental investigation was to gather four dissimilar water samples and test them in several different methods to see which water sample had the best quality. The tests that were used were that of: A fecal chloroforms test, phosphate test, nitrates test, pH test, dissolved oxygen test and a total dissolved […]

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Sythesizing Isopentyl Acetate by the Fischer Esterification

Abstract: The purpose of this experiment was to synthesize isopentyl acetate via an esterification reaction between acetic acid and isopentyl alcohol, using concentrated sulfuric acid as a catalyst. The product was washed with sodium hydrogen carbonate, as well as with water, then dried with anhydrous sodium sulfate. The product was then distilled using a Hickman […]

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Effects of temperature on growth of yeast bread dough

Microbe is a term for tiny organisms that individually are too small to be seen with the unaided eye. There are five main types of microbe: bacteria, archaea, fungi, protists and viruses. * Bacteria – Bacteria are not only are with us all the time, but help us do an amazing array of useful things […]

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The oxidisation of ethanol

Ethanol is a primary alcohol and can be oxidised to produce either an aldhyde or a carboxylic acid. The purpose of this experiment is to oxidise ethanol and then test the product to determine whether it has been oxidised to ethanol or oxidised to ethanoic acid. Safety As with all experiments, it is essential to […]

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The effects of exercise on heart rate

This experiment is to investigate the effects of exercise on heart rate. In my experiment which I will devise I will have independent variables which I will be able to change without affecting the other variables which are the constant variable and the dependant variable which I will measure. Safety will be an important factor […]

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