INQUIRY- What is the percentage by mass of water in Epson salt? DISCUSSION- When a crystal forms from water solutions‚ it takes a certain amount of water as part of the crystalline structures. The water is not covalently bonded to the host molecule or ion. Water is taken up in definite proportion in relation to the mass of the crystalline structure. This water that is trapped inside the hydrated solid structure is called water of crystallization or water of hydration. A salt with associated
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Unit 2 Assignment 1: Homework Learning Objectives and Outcomes Determine program input‚ processing‚ and output stages. Create the necessary flowcharts to describe a program’s structure. Use pseudocode to define a program’s structure. Formulate solution algorithms for calculations by properly following the order of operations. Assignment Requirements Answer: Short Answer 1‚ 2‚ 3‚ and 4 on page 71 Algorithm Workbench Review Questions 1 and 2 on page 71 Programming Exercises Questions 1
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For known amounts of reactants‚ theoretical amounts of product can be calculated in a chemical process. These calculated products are determined using the limiting reagent‚ (the substance that runs out first which stops the reaction) and are called the theoretical yield. The theoretical yield is the amount of product that should be acquired during the experiment if all aspects go perfectly. However‚ due to experimental errors‚ very few labs do so. These results are called actual yield. The percent
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Five key factors make up your FICO score‚ which is also known as your credit score: your payment history‚ any outstanding debts‚ the length of your credit history‚ the number of inquiries‚ and the types of accounts held. Each of these elements is given a different weight in the calculations that determine your FICO score. Your payment history comprises 35% of the score‚ your outstanding debt is 30%‚ your credit history age makes up 15%‚ and both the number of inquiries and account types are 10% of
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Determining The Percent Copper and Zinc in Pennies From Density Purpose: Practicing determine the density of the solution. Developing the method for determine the percent of density for the solution. Examining the linear relationship by learning to use the best-fit straight line. Using the linear relationship to determine the percent of density by the solution. Be familiar with recording data and observations. Methods & Material: Methods: Weight the mass for the different percent of
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Dendrochronology: Determining Reference Ecosystems and the Historical Range of Variability Each and every year‚ trees record information within their growing rings and dendrochronology is the study of these tree-rings. Although tree-ring analysis is limited by the spatial scale of the climates where trees can grow and the temporal scale of the oldest possible age of a tree in a study area (183636 years ago)‚ it has proven to be a crucial tool in paleoclimatology and paleoecology. “To understand
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Table of Contents Title: 1 Aim: 1 Apparatus: 1 Procedure 2 Theory: 2 Results: 4 Discussion: 5 Conclusion: 5 Title: Slump of Fresh Concrete Aim: To measure the slump or workability of fresh concrete Apparatus: • 1 Electronic scale (capacity 8100g accurate to 0.1g‚ inherent error ± 0.05g) • Shovel • Stainless steel tamping rod(diameter =5/8˝‚ length =18˝) • Mould • Metal scoops • Ruler • Slump
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Purpose The purpose of this experiment was to (Using Matlab) determine the relationship between acceleration and applied force when the total system mass is held constant (Constant Mass)‚ and the relationship between acceleration and total mass when the applied force is held constant (Constant Force). Apparatus Figure 1 Materials/Apparatus Parts • Cart and Cart ramp • Ultra Pulley + Photogate • C Clamp to mount Smart Pulley/Photogate • Vernier Lab Pro • Logger Pro • Mass Set and 1 Hanger • Block
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Purpose Using a calorimeter‚ the experiment aimed to determine the specific heat of two different metals‚ Lead and Zinc‚ in order to calculate their individual atomic weight. Theory The calorimeter consists of a metal outer cup‚ a removable metal inner cup‚ which is held in place by a rubber ring‚ and an insulating lid with a small opening for a thermometer. It is a closed system as the air between the inner cup and outer cup insulates the water and heated metal‚ so‚ ideally‚ all heat is contained
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The reason for this experiment was to figure out which solution would prevent the apples from browning the most and to determine if pH has an effect on the prevention of browning of the apples. My hypothesis stated that white grape juice would prevent the apples from browning the most. This hypothesis was refuted‚ lemon was actually the solution that prevented the browning of the apples the most. Before the apples were dipped in the solution‚ the average rating of the apples on a scale of 0 to 5
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