Relative Reactivity of Anilines Abstract: Various Anilines were tested with Br2/HBr solution‚ the products were crystallized and melting points attained to verify relative reactivity. My assignment‚ 2‚4-Dibromoanisol‚ was prepared in a yield of 52% with a melting point of 55-58 C . Reaction: Mechanism: Procedure: Anisole (0.35mL‚ 0.0378mol) was obtained and placed in a pre-weighed 25 mL round bottom flask‚ along with 2.5 mL of glacial acetic acid and a magnetic stir bar. Then the
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Relative Reactivity of Alkyl Halides Introduction Nucleophilic substitution of alkyl halides can proceed by two different mechanisms – the SN2 and the SN1. The purpose of the experiment was to identify the effects that the alkyl group and the halide-leaving group have on the rates of SN1 reactions‚ and the effect that the solvent has on the rates of SN1 and SN2 reactions. The SN1 mechanism is a two-step nucleophilic substitution‚ or unimolecular displacement. In the first step of the mechanism
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This purpose of the lab was to observe and compare the reactivity of the elements within groups and the reactivity of the groups themselves. The elements of each group were reacted with fire‚ acid (HCl or HNO3)‚ or in deionized water. According to the observations‚ the most reactive group was the alkali metals. Since the alkali metals are in group 1‚ they only have one valence electron and can easily lose this electron. As you move towards the right of the periodic table‚ the number of electrons
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“All ethical statements are relative.” (By examining the justification for and implication of making this claim‚ decide whether or not you agree with it). The term ‘ethical’ can be defined as ‘morally correct’‚ however this leads to the question of what do we define as ‘morals’? A ‘moral’ can be simply defined as ‘concerned with the principles of right and wrong behaviour and the goodness or badness of human character’. The word ‘relative’ refers to something‚ which is ‘considered in relation
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For this lab‚ I decided to focus on relative dating in studying things of the past. I found this the most interesting form to examine. Relative dating doesn’t give one an exact date but can give a good time frame of an artifact. It is used by looking at sequences and layers with regards to the soil for excavating. This is known as stratigraphy (Bahn‚122). It was inspired by geology in looking at layers of soil (Dating Archeology‚ 2016). As an archeologist using this method‚ one would say‚ “the underlying
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Relative Density Experiment 7: Relative Density Laboratory Report Moses Joshua Montilla‚ Jared Paolo Nacino‚ Daryl Janus Panganiban‚ Matthew Allan Papa Department of Sports Science College of Rehabilitation Science‚ University of Santo Tomas España‚ Manila Philippines Abstract The experiment about relative density is composed of three different activities. The first activity is about the Displacement Method for alloy‚ the second activity is about getting the density of a bone
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Relative Velocity and Riverboat Problems On occasion objects move within a medium that is moving with respect to an observer. For example‚ an airplane usually encounters a wind - air that is moving with respect to an observer on the ground below. As another example‚ a motorboat in a river is moving amidst a river current - water that is moving with respect to an observer on dry land. In such instances as this‚ the magnitude of the velocity of the moving object (whether it be a plane or a motorboat)
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Look at these reduced relative clauses using participles |1. |Who is that man waving at us? | | |2. |Most of those trying to get tickets were unsuccessful. | | |3. |All the workers made redundant last month have now been found new jobs. | | |4. |The money being collected will go to help a new orphanage
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Relative Clauses - Exercises 1. Re-write the sentences so that they have the same meaning as the original. You must use a relative pronoun. a. I bought a house. It was advertised in the local paper. b. Mary works in our office. Her husband is a plastic surgeon. c. Venice is a wonderful place. We spent our last holiday there. d. He showed us how to create a computer-based game. It was very interesting. e. I’ve just finished reading Harry Potter and the Philosopher’s Stone
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How to Form Relative Clauses Level 2 Imagine‚ a girl is talking to Tom. You want to know who she is and ask a friend whether he knows her. You could say: A girl is talking to Tom. Do you know the girl? That sounds rather complicated‚ doesn’t it? It would be easier with a relative clause: you put both pieces of information into one sentence. Start with the most important thing – you want to know who the girl is. Do you know the girl … As your friend cannot know which girl you are talking
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