The full strength 1M HCl acid had a pH level of 3.12 (Table 3.1). Sample A2 to A4 remained in the pH 3 level‚ while sample A5 and A6 had a pH range of 4 (Table 3.1). The pH level for 1M HCl dilutions slightly increased between each sample (Table 3.1). The diluted solutions of 1 M NaOH showed a few unexpected results. The original solution of 1 M NaOH was at a pH level of 11.50 (Table 3.1). However‚ the pH of sample B2 increased to 12.81 (Table 3.1). The remaining samples had a decreasing pH pattern
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only argument that is plausible because things do not exist without a cause. For example‚ people and animals do not exist without reproduction. People must have a first cause to be created and exist. “The cosmological argument for God’s existence goes like this: The world could not exist on its own so there must have been a first cause that brought it into being. This first cause is God. Or put another way‚ the universe could not just exist on its own—someone or something must have made it. This
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Each instructor may teach up to two classes or may be assigned to do research only. Each trainee may take up to two classes per year. Given that information‚ do the following: a. Define all of the entities and relationships. Question 3 Use the following business rules to create a Crow’s Foot ERD. Write all appropriate connectivities and cardinalities in the ERD. a. A department employs many employees‚ but each employee is employed by one department. b. Some employees
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Figure 1.0: Entity Relationship Diagram of Generic Academic Performance Monitoring System Figure 2.0: Context Diagram of Generic Academic Performance Monitoring System The figure 2.0 represents the two (2) users of the Generic Academic Performance Monitoring System namely the Administrator and the Professor. The Administrator entity shows the capability to access the system; manage account by modifying account’s profile; managing member’s account such as creating new user profile and updating
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mankind. People all over the world are born under different economic circumstances. The saying that people are all born equal is debatable because of the separating differences they come to experience in life. This is one of the reasons why class inequality still exists. Other factors include environmental and educational deficiencies as well as race. Environmental damage increases the impact of floods and other environmental catastrophes. Soil erosion‚ land degradation and deforestation leads to decline
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Miracles are important because they provide a basis for belief in God‚ many people believe God exists because they have witnessed miracles whilst others believe that a transcendent being doesn’t exist‚ and so try to prove that miracles don’t either. I believe the findings of modern science have not ruled out the possibility of miracles so it would be absurd to dismiss their possibility. There are many definitions of the term ‘miracle’‚ the most common being ‘an event caused by God’. However‚ David
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physics‚ energy is an indirectly observed quantity which comes in many forms‚ such as kinetic energy‚ potential energy‚ radiant energy‚ and many others; which are listed in this summary article. This is a major topic in science and technology and this article gives an overview of its major aspects‚ and provides links to the many specific articles about energy in its different forms and contexts. The question "what is energy?" is difficult to answer in a simple‚ intuitive way‚ although energy can be
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DFD Yourdon Recently reviewed In the late 1970s data-flow diagrams (DFDs) were introduced and popularized for structured analysis and design (Gane and Sarson 1979). DFDs show the flow of data from external entities into the system‚ showed how the data moved from one process to another‚ as well as its logical storage. Figure 1 presents an example of a DFD using the Gane and Sarson notation. There are only four symbols: Squares representing external entities‚ which are sources or destinations
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Lab Experiment # 11 The common ion effect in dissolution and precipitation Equilibria Introduction: Dissolution and precipitation reactions are very important chemical reactions because it is applied to many aspects of the industries in medicine‚ food‚ water etc. The objectives of this laboratory experiment is to become familiar with dissolution and precipitation equilibria‚ develop a lab technique suitable for the determination of the solubility for a sparingly soluble salt‚ Ba(NO3)2 (s) at room
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Topics Chapter 9 Using Data Flow Diagrams Data flow diagram symbols Data flow diagram levels Creating data flow diagrams Physical and logical data flow diagrams Partitioning Event driven modeling Use case and data flow diagrams Systems Analysis and Design Kendall and Kendall Fifth Edition Kendall & Kendall Using Data Flow Diagrams Unexploded data flow diagrams are useful to identify information requirements Exploded data flow diagrams can be used for presentation‚ education
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