2016 Experiment 2: Acid- Base Extraction Separation of an Organic Acid‚ a Base and a Neutral Compound Introduction: The extraction technique is often used in the organic lab to separate organic compounds from mixtures. One type of an extraction technique is the acid-base extraction‚ which is used to separate organic compounds from a mixture based on their acid-base properties.1 There are certain principles that must be taken into account when choosing a solvent system to perform an extraction. The
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object itself or by conditions surrounding the object Both the arrows are of the same length. However‚ arrow A appears to be shorter -BLIND SPOT The blind spot is an area on the retina which cannot detect images because there are no light receptors there The blind spot can only be detected in one eye at a time To show the existence of the blind spot‚ hold a card marked with a circle and triangle about 5 cm apart on it. Close your left eye and look at the circle with the right eye when you slowly
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DETERMINATION OF COPPER BY COMPLEXATION‚ SOLVENT-EXTRACTION AND SPECTROPHOTOMETRY ABSTRACT To determine the concentration of copper in an unknown solution by using copper complexation‚ solvent extraction and spectrophotometry. Standards are used to create a calibration curve and the unknown concentration of copper is then calculated by using the linear equation from the calibration curve. The concentration of copper in the unknown solution 201 was found to be 12.57± 0.25 μg/mL. INTRODUCTION Copper
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Narrative/Personal Experience The Day Off It was a nice‚ hot‚ and sunny day in Studio City. At the time I was living in LA with my girlfriend‚ Ally. It was about 9 in the morning‚ when I awoke to the smell of bacon and eggs. She and I rarely were able to coordinate the same days off of work; it just happened that we were both off that day. Happily waking up that morning‚ I got strait in the shower not realizing I was still half asleep and forgot a towel. Not wanting to disrupt my girlfriend’s focus
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TOP TOURIST SPOT IN THE PHILIPPINES BORACAY – Malay ‚ Aklan Philippines Tourism came to the island beginning in about the 1970s. The name Boracay is attributed to different origins. One story says that it is derived from the local word "borac" which means white cotton with characteristics close to the color and texture of Boracay’s white sugary and powdery sand. Another credits the name to local words "bora‚" meaning bubbles‚ and "bocay‚" meaning white. Yet another version dating back to the Spanish
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Extraction of Caffeine from Thea sinensis Abstract Extraction of Caffeine from Thea sinensis main objective is to isolate‚ purify characterized caffeine from tea leaves. Sublimation technique was used to get the % yield which is 0.07%. The melting point of the standard caffeine with the sublimate is 229°C. Introduction The active ingredient that makes tea and coffee valuable to humans is caffeine. Caffeine is an alkaloid; a class of naturally occurring compounds containing nitrogen and
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Experiment 13B: Isopentyl Acetate (Banana Oil) Semimicroscale Procedure Taylor Levin 5.28.14 Chemistry 352- Organic Chemistry Lab Summer 2014 Purpose: To prepare isopentyl acetate (banana oil)‚ an ester‚ from isopentyl alcohol and acetic acid through the Fischer Esterification reaction. Reactions: acetic acid + isopentyl alcohol isopentyl acetate + water C2H4O2 + C5H120 CH3COOCH2CH2CH(CH3)2 + H20 Procedure: A reflux condenser was assembled
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The extended family ended with industrialisation Prior to the industrial revolution families were drastically different to how they are today. Extended families and kinship economies played a large part in family life as all land was owned and farmed upon by relatives beyond that of the nuclear family and as such people were born into certain roles in family rather than this being based on achievements and qualifications as it is nowadays. These roles would be passed down through generations and
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IMS Top 50 TOP 50 OF 2011 Infomercials and Spots of 2011 M Beauty Shines While Fitness Stays Strong in IMS Long-Form Top 50 By Peter Zalla‚ IMS Long-Form Manager Guthy-Renker’s Wen is one of the many beauty products that maintained a strong presence in long-form in 2011. Fitness products such as TurboFire‚ at right‚ were also a dominant category. ost of the top-performing infomercials of 2011 are established shows that are familiar to the Infomercial Monitoring Service (IMS) rankings
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Introduction In my report I will discuss what I did as an experiment and what I hope for it to achieve. Firstly I carried out an experiment to assay the effectiveness that a range of disinfectants have on the growth of ecoli and whether or not it can prevent it from growing. From the experiment i should be able to see that some disinfectants have a greater effect than others do. From this I shall then draw a conclusion and evaluation on what was the most effective‚ and could there have been any
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