I. DISCUSSION: Differences between organic and inorganic compounds based on structure‚ type of bond and some common physical and chemical properties. II. PROCEDURE: A. SOLUBILITY 1. To 2 mL. each of the following solvents: water‚ ethyl alcohol and ether‚ add a pinch of benzoic acid and shake.
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Alkenes undergo electrophilic addition to give alkyl halides. When bromine is used as a reagent‚ the reaction proceeds via 2-‐step process. The first step involves the formation of bridged bromonium ion followed by the nucleophilc attack by bromide ion to give vicinal dibromide. The stereochemistry of this
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The percent recovery and percent yield were 80.46% and 47.526%‚ respectively. A melting point range of 85-87oC was obtained from the purified product. - Introduction A Grignard reaction adds an alkyl-magnesium halide to an aldehyde or ketone carbonyl carbon. The alkyl-magnesium halide is known as the Grignard reagent. The carbon bonded to the magnesium
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side of it. This reaction causes the flow of electrons passing through the wires and using the positive and negatively charged electrons to power the bulb. Car batteries also run off a positive and negative charge. The salty flesh of the spud allows ions to pass through one electrode to another. With more of these acids acting as reactants‚ perhaps less potatoes could power more for longer periods of time. The question is how? GMOs.
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VCE Chemistry Week 1 - Chemical Analysis (1) Horizen Education February 8‚ 2013 1 1.1 Review: Gravimetric and Volumetric Analysis Gravimetric Analysis Solubilities Always soluble: Usually soluble: Exceptions: Na+ ‚ K+ ‚ NO3− ‚ CH3 COO− ‚ NH+ 4 Cl− ‚ I− ‚ Br− i. Sodium carbonate and Silver nitrate ii. Iron (II) sulfate and Lead (II) nitrate iii. Sodium nitrate and Nickel sulfate iv. Potassium hydroxide and Copper (II) nitrate v. Sodium sul de and Cadmium sulfate Ho
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water (mixture) contains many dissolved minerals such as salts Atmosphere: layer above earth’s surface which contains mixture of gases. E.g. nitrogen (75.3%) & oxygen (23.1%) being most abundant gases 2.1.1 Explain the relationship between the reactivity of an element and the likelihood of its existing as an un-combined element The more reactive an element is = less chance finding The less reactive an element is = more chance of finding There are two types; monatomic (exists with 1 atom) & diatomic
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Chemical Earth 1. The living and non-living components of the Earth contain mixtures Construct word and balanced formulae equations of chemical reactions as they are encountered 1. Build a word equation Reactants on left‚ Products on right 2. Convert word equation into chemical formula for the reactants and products Using valency rules 3. Balance the equation Adjust coefficients to get equal numbers of each kind of atom on each side 4. Specify the physical state for each species present
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Chapter 1 MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. A) B) C) D) E) In quantum mechanics a node (nodal surface or plane) is: a place where Ψ is negative. a place where Ψ is positive. a place where Ψ = 0. a place where Ψ2 is large. a place where Ψ2 is negative. Ans: C Topic: Atomic Orbitals‚ Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule‚ how many molecular orbitals are formed? A) 1 B) 2 C) 3 D) 4 E) 5 Ans:
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The Grignard Synthesis of Triphenylmethanol Abstract: Grignard synthesis of triphenylmethanol was achieved by use of the Grignard reagent phenyl magesium brominde. The organometallic grignard reagent was synthesized by use of a reflux apparatus recrystallization techniques. Once synthesized it was used in a Grignard reaction that involved nucleophilic addition to a carbonyl in order to make triphenylmethanol. The final product was solidified and recrystallized and spectral data was
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in the original sample can be calculated. Precipitation is effected by inorganic or organic precipitating agents. Two common inorganic precipitating agents are silver nitrate‚ which is used to precipitate halide ions such as chloride‚ and barium chloride‚ which is used to precipitate sulfate ion. In all of these precipitation reactions‚ the product is a salt because it is formed by reactions between cations and anions.Thus the bonding is ionic or electrovalent. The three major requirements for
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