accurately weigh your sample of acid and titrate to a phenolphthalein (colorless to pink color) end point using an accurately known dilute solution of sodium hydroxide (0.1000 M). If your unknown is soluble in a greater than 50% ethanol/water mixture‚ then use bromothymol blue as the indicator to give a yellow to blue color change. Using an analytical balance‚ accurately weigh out approximately 0.2 g of your unknown acid (measured to 0.001g) and dissolve in 50 – 100mL of water. It may be necessary to warm
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Chapter 4: Industry Analysis: Indian FMCG Sector 164 Chapter 4: Industry Analysis: Indian FMCG Sector 4.1 Introduction to Economy 4.2 Indian Economy 4.3 Indian FMCG Sector 4.4 Indian FMCG Sector 165 Chapter 4.1: Introduction to Economy 1. Introduction 2. Evolution of Economy 3. World Economies 4. Types of Economies 166 4.1: Introduction to Economy 1. Introduction An economy consists of the economic system of a country or other area‚ the labor‚ capital
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Chapter 1 MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. A) B) C) D) E) In quantum mechanics a node (nodal surface or plane) is: a place where Ψ is negative. a place where Ψ is positive. a place where Ψ = 0. a place where Ψ2 is large. a place where Ψ2 is negative. Ans: C Topic: Atomic Orbitals‚ Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule‚ how many molecular orbitals are formed? A) 1 B) 2 C) 3 D) 4 E) 5 Ans:
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energy is very effective since it is renewable. This means that the more solar energy that the human race uses‚ the less fossil fuels are used‚ which potentially reduces the amount of population and harm done to the environment. Though it benefits the environment‚ these solar cells have an economical toil on our society‚ because they are very expensive. Since solar cells are so expensive‚ their use has decreased‚ but if newer and cheaper material is found and used in these cells‚ then solar energy will
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Telecom reforms was initiated in 1994‚ there were three incumbents in the fixed service sector‚ namely DoT (Department of Telecom)‚ MTNL and VSNL. Of these‚ DoT operated in all parts of the country except Delhi and Mumbai. MTNL operated in Delhi and Mumbai and VSNL provided international telephony. Given its all-India presence and policy-making powers‚ the DoT enjoyed a monopoly in the telecom sector prior to the major telecom reforms. However‚ subsequent to the second phase of reforms in 1999‚
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DIRECTIONS 1. USING GRAPH PAPER construct the following graphs BY HAND. Make sure to label the axes (include units) and give each graph a title. Make sure to use an appropriate scale. 2. Answer the questions. 3. USING LOGGER PRO construct the same graphs. Compare your results. 1. Several samples of pure tin were weighed and placed in a graduated cylinder filled with water to measure their volume by water displacement. Show the relationship between the mass and volume of the samples
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many risks to many countries that use nuclear energy. This was proved‚ in many disasters that nuclear energy caused years ago‚ like the Chernobyl Disaster in April 26‚ 1986‚ which was said that‚ “the radiation released was to be 200 times that of Hiroshima and Nagasaki nuclear bombs combined (Smashing Lists‚ 2011).” Not only can nuclear energy cause disasters‚ but the amount of uranium used is both a lot and risky. In addition‚ the majority of the countries use nuclear energy‚ which can cause potential
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Integrated Make to Stock The integrated make-to-stock supply chain model focuses on tracking customer demand in real time‚ so that the production process can restock the finished-goods inventory efficiently. This integration often is achieved through use of an information system that is fully integrated. Examples: 1- Starbucks Coffee (starbucks.com) 2- It is a usually associated with the industrial revolution mass production techniques. Examples include ready-to-wear apparel‚ books‚ televisions
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solution of a substance. -Determine the amount of moles of solute present. -What is the concentration after a dilution when the final volume is 2.50L. Box 2 Instead of completing 2 calculations for each time a dilution is calculated‚ scientists use the _________________________________________. _______________________=______________________ Double check the formula using the previous problem. -Initially‚ there is 275mL 0.125M solution of a substance. What is the concentration after a dilution
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cross-section of a plant. 2D and uses transmitted light Higher magnification‚ lower resolution Microscope objectives include 4x‚ 10x‚ 40x‚ 100x‚ -As you move to a higher power‚ your field of view decreases -Parcentric: whatever is in the middle of your field of view will remain there as you go to a higher power -Parfocal: once something is in focus at a lower power‚ it will stay in focus at a high power An object is always being magnified at 10x‚ so if you use the 40x objective‚ multiply these
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