Investigating the Biomolecules found in Gelatin Abstract: For this inquiry lab‚ the research team tested the gelatin solution for the presence of biomolecules. The team searched for the presence of starch‚ glucose‚ lipids‚ and proteins through the use of indicators: Sudan III‚ Lugol’s iodine‚ Benedict’s solution‚ and Biuret’s reagent. After testing the gelatin solution in the presence of the indicators‚ the results showed that Lugol’s reacted‚ turning orange-pink (oils) and the Biuret reagent (protein)
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Chemistry of Sunscreens “Over 400 years ago‚ Copernicus declared that the sun was the center of our universe. Primitive societies in every continent have worshiped the sun as the god that provided warmth and made the crops grow” Today‚ the sun is not something we worship but something we try to avoid due to the fact that we are aware that it contains two main sources of ultraviolet radiation that is harmful to our bodies. Ultraviolet radiation (UVR) is defined by wavelengths‚ and is divided
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values that have trailing zeros only to the left of the decimal point are ambiguous and should be expressed in scientific notation. We must take note that the chemistry textbook (Silberberg 6e) states that placing a decimal point to the right of some trailing zeros (example: 300.) will make the zeros significant. However in General Chemistry‚ we do not follow this rule. If we want to write a whole number with trailing zeros we must use scientific notation to show which zeros are significant. When
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Chemistry 121 Colligative Properties Lab Demonstration of Selected Calculations from Choice I Determination of Kf for Naphthalene To determine the Kf for naphthalene‚ we need to find the difference in the freezing point of pure naphthalene and the solution of 1‚4-dichlorobenzene in naphthalene. Let’s say that we did this experiment‚ used 1.00 g 1‚4-dichlorobenzene in 10.00 g naphthalene‚ and found that the freezing temperature of pure naphthalene was 78.2°C‚ while that of the solution was 75
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reactants used and the amounts of products formed in a chemical reaction”. Basically‚ Stoichiometry is the science of counting and studying the relationship between the amounts of the reactants to the product. To think of stoichiometry outside of chemistry‚ imagine a bookshelf. To assemble the bookshelf you may need 3 planks of wood‚ 1 giant plank of wood‚ and 20 nails. Even though the amount of the reactants is high‚ the product would be only one bookshelf. Stoichiometry is basically studying the
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Chemistry of Fireworks By Anuradha Sahu Everyone enjoys the amazing firework shows on the Fourth of July with the beautiful vibrant colors and sparks every year. Fireworks have been part of this world for a very long time. They have been used for enjoyment and for signalling purposes. Every culture has their own significance and use of fireworks. But all fireworks have something in common; the chemistry that makes them work. No matter where you find them‚ they are made up of the same compounds
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Media Theory & Practice BASIC ELECTRONICS BASIC ELECTRONICS David Williams & Michael Shiloh © 2003 MakingThings LLC Media Theory & Practice BASIC ELECTRONICS OVERVIEW Session 1 Electricity is kind of like water The Components Inside Session 2 The Binary Miracle Switches can do all that? Arrange them just right‚ and you have a computer The computer does what you say millions of times a second Reconnecting to the real world Media Theory & Practice BASIC ELECTRONICS ELECTRICITY IS LIKE WATER
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My research focused on living situations. I wanted to compare the living situations of living alone versus living with one or more people‚ and find the advantages and disadvantages to both. I started by creating by survey with questions based on different aspects of everyday living that may differ from one living alone to one living with roommates. These questions gave me an idea of the stress level‚ study habits‚ sleep habits‚ number of times they go home‚ overall living preference‚ and self-declared
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categories are recorded accurately - Perform basic account reconciliation. - Implement adequate internal controls - Save receipts for small purchases - Know the difference between profit and cash flow - Rely also on a paper environment - Honour your cheques and GST 3. How can you ensure that credit and debit transactions are accurately recorded‚ in accordance with organisational requirements? The use of computer software. The system will automatically record entries behind the scenes
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BASICS OF TELECOM TELECOM VERTICALS:- 1. IMPLEMENTATION OF TELECOM SYSTEM & TRANSMISSION SYSTEMS i) BTS(BASE TRANSEIVER SYATEM) ii) ALARM SYSTEM iii) BSC(BASE STATION CONTROLLER) iv) ANTENNA v) VARIOUS CARDS 2. POWER SYSTEM INSTALLATION i) DG(DIESEL GENERATOR) ii) MCB iii) PIU(POWER INTERPHASE UNIT) iv) SMPS v) RECTIFIERS vi) BATTERY BANK(24VOLT‚48VOLT) vii) POWER CARDS 3. OPERATION & MAINTAINANCE FOR TELECOM & INFRA SYSTEMS 4. RF VERTICALS i) RF SURVEY ii) RF PLANNING iii) NETWORK
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