Title: Factors affecting reaction ratesProcedure A: Effect of ConcentrationAim: To investigate how the concentration of a reactant affects the rate of reaction. Hypothesis: The more concentrated the reactant‚ the faster the rate of reaction. Materials: 2M hydrochloric acid solution‚ magnesium wire‚ distilled water‚ 4 test-tubes‚ measuringcylinder. Procedure:1)10mL 2M hydrochloric acid solution is poured into a test-tube using a measuring cylinder. 2)A 3cm length of magnesium wire is added to
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Title Laboratory Techniques and Measurements Purpose The purpose of this experiment is to determine mass‚ length‚ temperature‚ volume‚ and density of objects and liquids using common measuring devices and algebraic formulas. The metric system‚ the most common set of measurements used in science‚ which includes meters‚ liters‚ Celsius‚ and grams will be used. Procedure The following items were used within the experiment: (1) Metric ruler with centimeter (cm) and millimeter (mm)‚ (1)
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Contents 1. Summary 1 2. Introduction 1-3 1.1 Least Squares Method 2 1.1.1 Method 2 1.2 Minimum Zone Method 3 2. Objectives 3 3. Apparatus 3-4 4. Procedure 4 5. Results 4-7 5.1 Straightness 4-6 5.2 Flatness 7 6. Discussion 8-10 6.1 Straightness 8 6.2 Flatness 8-9 6.3 Closing error 9-10 7. Conclusion 10 8. References 10 9. Appendices 11-15 9.1 Appendix A-Procedure 11-13 9.2 Appendix B-Certificates of calibration 14-15 1. Summary The aim of this experiment was
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Laboratory Techniques & Measurements Observations from Procedures Data Table 1 – Length measurements Object|Length (cm)|Length (mm)| Band-Aid Canister|10.3 cm|103 mm| Fragrance Oil Bottle |7.3 cm|73 mm| Pill Bottle|7.1 cm|71 mm| Data Table 2 – Temperature measurements Hot water from tap(ºC )|Boiling water(ºC)|Boiling water – 5 minutes(ºC)| 52 ºC|99 ºC|100 ºC| Cold water from tap(ºC)|Ice water (ºC)|Ice water – 5 minutes (ºC)| 23 ºC|10 ºC|10 ºC| Data Table 3 – Volume measurements
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The purpose of this experiment was to observe the process of human evolution by observing similar features of the Pan troglodytes‚ Australopithecus afarensis‚ Homo erectus‚ Gorilla gorilla‚ Australopithecus boisei and the‚ Homo neanderthalensis in comparison to those of the Homo sapien. According to Darwinism‚ the species that had the most traits in common with the Homo sapien must be the most related while species with the least traits in common with the Homo sapien were the least similar. For example
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Date: 18/03/13 Subject: Biology Grade: 11th A Teacher: Ms.Braga Concept:_______ ------------------------------------------------- ------------------------------------------------- Human Traits Introduction: The study of genes‚ Genetics‚ is a branch in Medicine that studies how genes are formed‚ distributed and how they change the organisms’ characteristics. The pioneer in the field of Genetics‚ Mendel‚ was able to formulate various
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delaying errors such as mechanical‚ human or Symantec errors will be avoided. Efficiency is also the key in allowing the company to evolve and develop. As the saying‚ being too careful will provide quality service that everyone would want‚ but it would take up a lot of time. By having a monitoring system to follow‚ the company is able to save time and provide maximum assistance and satisfaction to all the employees and clients. In education‚ the computer laboratory is usually monitored‚ Due to the
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I. DEFINITION What is HPV infection? Human papilloma virus (also called HPV) is the most common sexually transmitted infection (STI). There are at least 100 different types and more than 40 types of HPV that can infect the genital areas of males and females. These HPV types can also infect the mouth and throat. HPV can cause serious health problems‚ including genital warts (verrucae) and certain cancers. There is no certain way to tell who will develop health problems from HPV and who will not
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Question 3 Using any peripheral nerve bundle as a model‚ describe using figures (a) the general anatomical structure with key constituents identified and (b) the heterogeneity in the electrical conductivities of the different constituents. For this question‚ I will be using the sciatic nerve as my model. The sciatic nerve consists of several main structures as can be seen in Figures 5 below. Figure 5: Cross section of the sciatic nerve. The inset in the top image shows individual fibers wrapped
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COMPENSATION‚ BENEFITS AND WORKING CONDITIONS One of the most difficult functions of personnel management is that which concerns compensating the employees fairly and equitably. OVERVIEW OF THE COMPENSATION SYSTEM The American Regime * Act No. 102 Act Regulating the Salaries of Officers and Employees in the Philippine Civil Service The Commonwealth Regime * Commonwealth Act No. 402 An Act to Provide for the Classification of Positions and Standardization of Salaries in the Government
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