cyclohexene—flammable and irritant (cyclohexene) Sulfuric acid—toxic and oxidizer (Sulfuric acid) phosphoric acid—corrosive (phosphoric acid) Results/Data: End product weighed 0.109g of cyclohexane and tested positive with bromine test Discussion: In order to perform this experiment‚ a distillation apparatus was assembled. 4.0mL of H3PO4 and 3.0mL of cyclohexanol was placed in the round-bottom flask as sell as 5 drops of H2SO4 and a magnetic stir bar. The flow of water
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orbit? 4a) Fluorine and chlorine both behave similarly in chemical reactions. How many electrons do these elements have in their outer orbit? b) Bromine has the same chemical behaviour as chlorine and fluorine. Where is bromine found on the periodic table in relation to chlorine and fluorine? c) How many electrons do you suppose that bromine has in its outer orbit? 5a) Helium‚ neon‚ and argon behave similarly in chemical reactions. What do you notice about the outer orbit of electrons in
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Chlorine is more reactive than bromine.This mean that chlorine can displace bromine in the compound sodium bromide and make sodium chloride plus bromine.Another example is that fluorine can displace chlorine.This is how the halogens can displace each other chlorine + sodium bromide → sodium chloride + bromine Task 2 There are two types of bonding.Covalent bonding and ionic bonding. Ionic bonding occurs from positively ions and negatively
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dominated by this effect‚ and usually results in the C-X bond being broken (either in a substitution or elimination process). This reactivity makes alkyl halides useful chemical reagents. Nomenclature According to IUPAC‚ alkyl halides are treated as alkanes with a halogen substituent. The halogen prefixes are Fluoro-‚ Chloro-‚ Bromo- and Iodo-. Examples: H Cl CH3 H F CH2CH3 fluoroethane trans-1-chloro-3-methylcyclopentane Often compounds of CH2X2 type are called methylene halides. (CH2Cl2 is
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DEPARTMENT OF PURE AND APPLIED CHEMISTRY Visayas State University‚ Baybay City‚ Leyte CHEM31a – BIOCHEMISTRY Laboratory Report Name: Alyssa Diane Marie L. Baljon Date Performed: May 11‚ 2015 Course & Year: BSChem 2 Date Submitted: May 18‚ 2015 Lab Schedule: M-F 7:00-10:00 Score: Group No. 4 Experiment No. 4 Lipids Objectives Observe some physical and chemical properties of lipids Distinguish between saturated and unsaturated fats. Observe saponification of triacylglycerol in the preparation
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Metals and Halogens reactions Elements such as fluorine‚ chlorine‚ bromine‚ iodine‚ and astatine belong to Group 7‚ Halogens. At room temperature‚ fluorine is a yellow gas‚ chlorine is a pale green gas‚ bromine is a red liquid‚ and iodine is a purple solid. Astatine is a radioactive element‚ therefore it exists only in small amounts. All the halogens exist in diatomic molecules. They have high ionization energies and are the most electronegative elements. Their electron configuration ns2 np5 make
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UNIT 1 REVISION CHECKLIST Topic 1.1 Can you a) define atomic number‚ mass number‚ isotopes‚ relative atomic mass‚ relative molecular mass b) remember the four stages in mass spectrometry and explain how each one works c) calculate relative atomic mass from isotopic composition data‚ or from a mass spectrum of an atom d) deduce relative molecular mass from the mass spectrum of a molecule e) Give the electronic configuration of atoms with atomic number 1-36 and of the common ions
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the naming convention of the alkanes except that the suffix -yne is used instead of -ane. For alkynes above propyne the position of the double bond must be specified in the name. Alkynes are unsaturated hydrocarbons and are generally very reactive. Typical reactions involve the addition of hydrogens or halogens. Alkynes are hydrocarbons that contain a carbon–carbon triple bond. Because of its triple bond‚ an alkyne has four fewer hydrogens than the corresponding alkane. Therefore‚ the
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Alloy - An alloy is a substance made by melting two or more elements together‚ at least one of them a metal. An Example: Examples of alloys include brass‚ bronze‚ 14k gold‚ and sterling silver. covalent bond - A covalent bond is a chemical link between two atoms in which electrons are shared between them. An Example: There is covalent between the oxygen and each hydrogen in (H 2 O). Each of the bonds contains two electrons - one from a hydrogen atom and one from the oxygen atom. Both atoms
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Discussion and Conclusion: Preparation of 1-Bromobutane The purpose of this experiment was to demonstrate the conversion of a primary alcohol‚ 1-butanol‚ to a primary bromoalkane‚ 1-bromobutane‚ a SN2 reaction. The conversion of 1-butanol to 1-bromobutane relies on sulfuric acid which plays two important roles. First‚ it protonates the alcohol of 1-butanol to form an oxonium ion which is a good leaving group. Secondly‚ it produces the hydrobromic acid‚ the nucleophile‚ which attacks 1-butanol
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