Lab 2: Infra-Red (IR) - Nuclear Magnetic Resonance (NMR) Exercises In Molecular Spectroscopy - Structural Determination Organic Chemistry II CHEM 2425 Manrique October 30‚ 2012 Alex Wolf Introduction For the purposes of this lab‚ the chemical formula will be given‚ and the degrees of unsaturation can be calculate from the formula (2C+2)-(H+Hal-N)/2. The degrees of unsaturation will give clues as to the structure. A double bond‚ as well as a ring will have one degree of unsaturation each
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information in an editable file which can be sent to an instructor. Observations Questions A. Write net ionic equations for all reactions that produce a precipitate. Ag+(aq.) + Cl-(aq.) ---- AgCl (s) 2 Ag+(aq.)+ 2OH- --- Ag2O (s) + H2O(l) 2 Ag+(aq.)+2NH3+ H2O(l) --- Ag2O (s)+ 2NH4+ (aq.) Pb2+(aq.)+2Cl- (aq.) ---- PbCl2(s) Pb2+(aq.)+2OH-(aq.) ----Pb(OH)2 (s)
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Ionic Bonds Essay The periodic table is a masterpiece of organized chemical information. It is a table of the chemical elements in which the elements are arranged by order of atomic number. The standard form of the table includes periods (horizontal rows in the periodic table) and groups (vertical rows in the periodic table). Atoms are the basic building blocks of ordinary matter. Atoms are made up of particles called protons‚ electrons‚ and neutrons. Protons carry a positive electrical charge‚
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Narendra Boppana‚ Nasser Ali‚ Martin Chavez‚ Sear Introduction: Ion Exchange Chromatography is a process where the ionic exchange occurs in between the stationary phase and the sample in the mobile phase‚ by using this ionic exchange phenomenon it is easy to separate the compounds. Ionic exchange depends on the electrical properties of the anions and cations. Ionic exchange chromatography is important tool in the separation of the charged species mainly in the biological‚ inorganic and environmental
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Math Practice Lab Pre-Lab Questions: 1. The rules concerning handling significant figures are as follows: When dividing/multiplying The answer has no more significant digits than the number with the fewest significant digits (the least precise figure). Round off after calculations have been performed. When adding/subtracting Answer has no more places than the addend‚ minuend‚ or subtrahend with the fewest number of decimal places. Significant figures are irrelevant when adding/subtracting
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Conductor Insulator Insulator Insulator Solubility in hexane Insoluble Insoluble Insoluble Soluble Soluble Soluble Structure Giant ionic structure Giant ionic structure Ionic with covalent character Giant covalent structure Simple molecular structure Simple molecular structure Bonding Ionic bonding Ionic bonding Ionic bonding Covalent bonding Covalent bonding Covalent bonding Boiling point is the temperature at which the vapor pressure of the liquid is
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Title: Observations of Chemical Changes Purpose: To learn about the international system of units (SI)‚ to become familiar with common lab equipment and techniques‚ to gain proficiency in determining volume‚ mass‚ length‚ and temperature of a variety of items using common laboratory measurement devices‚ to learn to combine units to determine density and concentration‚ and to use laboratory equipment to create serial dilutions and determine the density and concentration of each dilution. Procedure:
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complete-formula equation‚ (b) ionic equation‚ (c) net ionic equation for this neutralization reaction: KHSO4 (aq) + NaOH (aq) → ? 2. In each of the following cases‚ predict whether a reaction will occur‚ and‚ if so‚ write the net ionic equation for the reaction: a. ZnSO4 (aq) + BaS (aq) → ? b. NaHCO3 (aq) + Ca(OH)2 (aq) → ? 3. Assign an oxidation number to each atom in: a. Al2O3 b. HAsO42c. NaMnO4 4. Identify the reducing agent and the oxidizing agent in the following reaction: MnO4- + 5 Fe2+ + 8
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Ionic bonding is known as a type of chemical bond where the valence electrons are lost from one atom and gained by another. This exchange results in a more from one atom and gained by another. When an atom gains or loses electrons while being bonded with another atom an ion is formed. This bond causes an atom to become either a positive or negative ion. Electrons have a negative charge‚ meaning that if an atom loses an electron‚ the amount of protons are greater than electrons. This makes the atom
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Unknown Ionic Compound ILI#3 Abstract: In this laboratory investigation‚ 8 solutions were combined with each other and an unknown liquid #1 in order to identify the ionic compound in the unknown solution. The students performed an experiment in which the reactions between each substance were compared to the unknown solution #1’s reactions and the color of each solution was compared to help find the unknown #1. The unknown ionic compound was identified to be Zinc Sulfate as the reactions between
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