Nor Amirah Farhana Nawawi‚ Mia Organic Chemistry Lab Report 2 Jessica Sammons TITLE: Preparation of 2-butanone INTRODUCTION: The goal of this experiment was to prepare 2-butanone from 2-butanol. Chromic acid was used in this experiment to in order to prepare 2-butanol. Cr (VI) is rather orange‚ but Cr (III) is dark green - therefore by oxidizing the alcohol (2-butanol)‚ an orange Cr (IV) is reduced to green. NMR and IR tests were taken to determine the result‚ and the crystallized derivative of
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M10/4/CHEMI/HP2/ENG/TZ1/XX/M+ MARKSCHEME May 2010 CHEMISTRY Higher Level Paper 2 18 pages –2– M10/4/CHEMI/HP2/ENG/TZ1/XX/M+ This markscheme is confidential and for the exclusive use of examiners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorization of IB Cardiff. –5– Subject Details: M10/4/CHEMI/HP2/ENG/TZ1/XX/M+ Chemistry HL Paper 2 Markscheme
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are hydrocarbons Differences in: CnH2n+2 CnH2n. CnH2n-2. ---- Bonds Simple Bond Double Bond Triple Bond Simple‚ Double or Triple Suffix -ane -ene -yne Cyclo + Number of carbons +suffix Characteristics They can be in a straight-chain or can have branches. You have to search for the parent chain‚ the longest carbon chain that contains the double bond. You search for the parent chain‚ which contains the triple bond. Its carbons are united forming a closed figure. Isomers Structural
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RED is taking its knowledge of high-quality cinema cameras to the smartphone industry with a new product. The Hydrogen One is RED’s bet to revolutionize the use of smartphones. Back in 2006‚ when RED was founded and showed its intent on delivering high-performance digital cinema cameras with quality of 35mm film and the convenience of pure digital‚ many people were skeptical and some even considered it a “scam”. After a 10-years background of providing unique high-quality cinema cameras with high-usage
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drugs. Because of the greater electronegativity of oxygen‚ the carbonyl (C=O) is a stronger dipole than the N–C dipole. The presence of a C=O dipole and‚ to a lesser extent N–C dipole‚ allows amides to act as H-bond acceptors. The presence of N–H dipoles allows amides to function as H-bond donors as well. Therefore‚ atenolol is the most polar drug and can be assigned the lowest log P value i.e. 0.16. Propanolol is the least polar drug because it contains non-polar aromatic functional group. Benzene
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can be observed or measured without changing the chemical identity of the substance. Physical properties can be categorized as either intensive or extensive. Reactivity: An element or compound’s reactivity is its ability or capacity to react‚ or bond‚ with another substance. As you continue through this course‚ you will observe and compare this particular chemical property in a variety of scenarios. Flammability: One type of chemical reaction‚ called combustion‚ involves the burning of various
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1887‚ this is a carbon-carbon bond making reaction. The result of the Michael addition is a 1‚4 addition of a nucleophile to an alpha‚ beta-unsaturated carbonyl carbon compound. A 1‚4 addition is also commonly referred to as a conjugated addition. Another result of this reaction is a 1‚2 addition of a nucleophile. Some of the common attacking nucleophiles used in this reaction are enolates. Enolates‚ a negatively charged oxygen with an adjacent carbon-carbon double bond‚ will react with the alpha‚
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* Question 1 0 out of 1 points | | | Which bond or interaction would be difficult to disrupt when compounds are put into water?Answer | | | | | Selected Answer: | A. hydrogen bond | Correct Answer: | C. covalent bond | | | | | * Question 2 1 out of 1 points | | | What is the atomic number of the cation formed in the reaction illustrated above?Answer | | | | | Selected Answer: | D. 11 | Correct Answer: | D. 11 | | | | | * Question 3 1 out
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an ionic bond. If chlorine gas is added to sodium metal to make sodium chloride‚ the sodium has donated an electron and the chlorine has accepted an electron to become a chloride ion or an attached chlorine. If a compound divides into elements in a decomposition‚ a decomposition reaction could be a redox reaction. The electrolysis of water is a redox reaction. With a direct electric current through it‚ water can be separated into oxygen and hydrogen. H2O H2 + O2 The oxygen and hydrogen in the water
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prepared by treating lithium hydride (LiH) with aluminum chloride (AlCl3) (Scheme 1). 4LiH + AlCl3 Scheme 1 LiAlH4 + 3LiCl In industrial scale‚ it is prepared from sodium aluminum hydride which is prepared by reaction of sodium‚ aluminum and hydrogen at high temperature and pressure (Scheme 2). Na + Al + 2H2 NaAlH4 LiAlH4 Scheme 2 NaAlH4 + LiCl + NaCl Joint initiative of IITs and IISc – Funded by MHRD Page 1 of 55 NPTEL – Chemistry – Reagents and Organic reactions 2.1.1.3
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