The Mass of Acetylsalicylic Acid in Aspirin ------------------------------------------------- Purpose The purpose of the lab is to determine the mass of the ‘active ingredient’ in a commercial ASA tablet. ------------------------------------------------- ------------------------------------------------- Introduction There are three main theories surrounding acids and bases including the Arrhenius‚ Bronsted-Lowry‚ and Lewis theories. The Arrhenius theory of acids and bases states that
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Popcorn Lab Report Background: Chemistry is the study of matter‚ its properties and the ability to change. This can be used to describe the process of popcorn and the change it undergoes to turn into the movie theater snack we know. The United States supplies most of the worldwide supply of popcorn available today‚ although the popcorn has to meet specific industry standards which can be tedious to do for the 50 million pounds of output per so sampling has to be used. Sampling is known as
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the Laboratory’1. Specifically‚ 1.90 grams of KCL was weighed in a 250ml beaker and dissolved in 25 ml of deionized water. This solution was then quantitatively transferred to a 250ml volumetric flask. Proper technique is needed for quantitative analysis. This transfer was done to ensure that there was no detectable KCl left in the beaker. After transferring the solution add 3 drops of AgNO3 to the rinsed beaked to check the completeness of the transfer. Now take the volumetric flask and add deionized
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Introduction The purpose of this lab was to recognize the stages as well as events of mitosis and meiosis in a plant cell or an animal cell. The relative duration of each stage in the cell cycle will also be learned during this lab. By doing this lab we will also create a model of and understand the process of crossing over. This lab also helps students understand the similarities along with differences between mitosis and meiosis. Purpose The objectives of the lab were to help give us a better
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Bio Lab Report In part II of the Organic Compounds in Foods lab‚ we to examining whether or not the starch in the saltine cracker can chemically break down in sugar with the presence of salivary amylase‚ which is an enzyme found in your mouth which assists in digestion. My group and I were instructed to obtain a saltine cracker from our teacher and chew on it for approximately 2 minutes. After concluding the chewing‚ we then grabbed a beaker and spit our slimy and chewed cracker into it. Subsequently
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and errors‚ as well as the final shear strength of the soils samples provided. 2. PROCEDURE The four laboratories as outlined above were carried out as per the provided McMaster University 2007 Civil Engineering 3B03 Geotechnical Engineering 2‚ Lab Procedures Manual‚ under the guidance of Peter Koudys and Jamie Hamelin. 3. DIRECT SHEAR TEST (SAND) Direct shear tests are quick and inexpensive test used to determine the corresponding shear strengths and parameters of fine and coarse grained
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Bubble Quality Lab Hypothesis: The sugar solution will produce the best quality bubbles because of it’s sticky texture. Procedure: First‚ three cups were labeled as #1‚ #2‚ and #3. Next‚ each cup had one teaspoon of dish detergent and ⅔ cup of water added to them and swirled around to have everything mixed. Cup #2 then had half a teaspoon of table sugar added and cup #3 had half a teaspoon of table salt added to them. After that‚ a straw was dipped into each solution separately‚ and blown through
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Virtual Lab Unit 3 1. Briefly describe the steps required to aseptically transfer bacteria from an unknown to a tube of liquid broth. You might have to research this using the "T" button (Tell Me More About...) To aseptically transfer bacteria from an unknown to a tube of liquid broth you have to flame the loop or wire before you begin to sterilize it. You then remove the caps from the tubes and flame the mouths of the tubes to prevent air-borne contamination. When all this is done‚ you have to
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Shavonna Bailey Barbara Transue English 102A MW 6:30 – 8:40 pm Alchemy The alchemy lab proposed that Alchemy is a craft. The law is that in order to create something new‚ it must die first. You cant be reborn without dying first. This "becoming" is how they explain alchemy. Its process can also be expressed by the traditional formulas of initiation: the suffering‚ death‚ and resurrection of the god or the neophyte‚ represented by the substances in the crucible or by the material of the craftsman
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"Nazi Labs" 네이지 제조법 It almost doesn’t matter what position you hold in law enforcement. 너가 어떠한 법 굴레에 통제받고 있더라도 그것에 대해 신경 쓸 것 없다. Patrolman‚ detective‚ task force officer‚ correctional officer‚ narcotics agent‚ federal‚ state‚ county or local. 그것이 연방‚ 주‚ 국가 혹은 지역에 소속된 경찰관‚ 형사‚ 기동대원‚ 교도관‚ 마약수사관이던간에. If you have not encountered a clandestine methamphetamine lab yet‚ you soon will. 아직 알려지지 않은 메스암페타민 제조법을 접하지 못 했다면 곧 접하게 될 것이다. The occurrence of meth labs in our communities is growing an outrageous
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