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Example of Lab Reports

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Lab Report: Extraction of Caffeine from Tea Bags

Caffeine

Sodium

Water

Words: 1163 (5 pages)

The purpose of this experiment was to perform a liquid-liquid extraction method to extract the caffeine from the tea bags that were provided, and then recrystallize the caffeine. The solvents used in the experiment were an aqueous sodium carbonate and dichloromethane (DCM). Anhydrous calcium chloride pellets were used to dry the solution and emulsion layer…

Lab Report Acid Base Titration

Titration

Words: 1066 (5 pages)

Objectives To determine the concentration of acid using titration. Skills of titration techniques. Apparatus 250 volumetric flask 10mL measuring cylinder 25mL pipette 50mL burette 250mL beaker 150mL conical flask Retord stand White tile Stopwatch Pipette bulb Chemicals HCl solution 0. 1M NaOH solution H2SO4 solution Distilled water phenolphthalein Introduction An acid-base titration is the determination of the concentration…

Lab Report on Photosynthesis

Photosynthesis

Words: 1211 (5 pages)

Lab Report: Understanding Photosynthesis Gen Biology Lab Abstract: This lab was called photosynthesis: understanding photosynthesis. It is a highly complex process that needs to be broken down in many steps to understand how it works. This lab covers the big components in photosynthesis including carbon dioxide intake, light consumption, and varying pigmentation. Introduction: Photosynthesis is…

Daphnia Heart rate – Lab Report

Heart

Words: 893 (4 pages)

Introduction: Caffeine is a stimulant which is derived from leaves, flowers and seeds of plants. The plant uses the caffeine as a way to repel insects as it is used as a natural pesticide by paralyzing and killing certain insects. It is used as a stimulant to human the central nervous system by increasing the…

Melting Points Lab Report Sample

Melting Point

Words: 1314 (6 pages)

The aims of this lab are. as follows ; to understand what occurs at the molecular degree when a substance thaw ; to understand the primary intent of runing point informations ; to show the technique for obtaining the runing point of an organic substance ; and to explicate the consequence of drosss on the…

Blood Pressure Lab Report

Pressure

Words: 1246 (5 pages)

Background Information According to the Harvard Medical School Family Health Guide, normal blood pressure is a systolic pressure of less than 120 and a diastolic pressure of less than 80 (livestrong.com). Systolic pressure is defined as the highest arterial blood pressure reached during any given ventricular cycle (Dictionary.com). Diastolic pressure is defined as the lowest…

Climate Change Lab Report

Change

Climate Change

Words: 803 (4 pages)

I. Introduction a. In this lab, the question being investigated is, “Has climate changed over time? ” b. The hypothesis is, “If CO2 levels affect climate, then the climate has changed overtime because of the increased greenhouse effect caused by higher levels of CO2 emissions. ” c. Variables: 1. Independent Variable: Amount of CO2 2….

Lab Report Chemistry

Chemistry

Words: 792 (4 pages)

The test tube was haken before the test tubes was placing in the boiling water bath in 3 minutes. 4. After the boiled process, it was continue to whiff the vapor released from the test tube. 5. Record the smell produced. Result: A. Combustion of Alcohols: Types of alcohols I Colour flame I Luminosity I…

Evolution Lab Report

Bird

Evolution

Words: 839 (4 pages)

I investigate the finch’s beak. Beak size is a trait that affects survival. Birds with small beaks are more efficient at utilizing small soft seeds whereas birds with large beaks are better at utilizing large hard seeds. Therefore, when more small seeds available, birds with small beaks would have a higher rate of survival than…

Electrochemical cells Lab report

Chemistry

Words: 821 (4 pages)

Analysis The purpose of Part 1 of this laboratory is to construct a table listing the reduction potentials of a series of metal ions in order of ease of reduction. The series of half-cells is constructed by placing a piece of metal into a 1.0 M solution of its ions for each metal in the…

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Frequently Asked Questions

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How do you write a lab report essay?
A lab report is broken down into eight sections: title, abstract, introduction, methods and materials, results, discussion, conclusion, and references. The title of the lab report should be descriptive of the experiment and reflect what the experiment analyzed.
What is the introduction of a lab report?
Introduction: The introduction of a lab report defines the subject of the report, provides background information and relevant studies, and outlines scientific purpose(s) and/or objective(s). The introduction is a place to provide the reader with necessary research on the topic and properly cite sources used.
What is laboratory report essay?
Lab reports are written to describe and analyse a laboratory experiment that explores a scientific concept. They are typically assigned to enable you to: Conduct scientific research. Formulate a hypothesis/hypotheses about a particular stimulus, event, and/or behaviour.

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