Chemistry 11 Final Examination Review - Answers Part A - True or False. Indicate whether each of the following statements is true or false. Correct the false statements. F 1. The mass of an electron is equal to the mass of a proton. The mass of an electron is less than the mass of a proton. T 2. The mass of a proton is approximately equal to the mass of a neutron. T 3. The atomic number represents the number of protons in a nucleus. T 4. The proton has a mass of approximately
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electron configuration for the ion of Ba. A) [Kr]5s25p6 B) [Kr]5s24d105p66s26p2 C) [Kr]5s24d105p66s1 D) [Kr]5s24d105p66s2 E) [Kr]5s24d105p6 Answer: E 11) Choose the orbital diagram that represents telec. A) B) C) D) E) Answer: A 12) Choose the valence orbital diagram that represents the ground
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Assignment Brief Front Cover Centre: Centre For Applied Science Learner name: Course Code: AS2129A13‚ AS2130A13 Programme Level & Title: BTEC Level 3 Extended Diploma in Health & Social Care (Health Science) Unit Number & Title: 15 Biochemistry for Health Assignment Title: 1‚ Atoms and simple Covalent molecules Assessor Name: Mark Ashby Date Issued: AS2129A13 17/09/13‚ AS2130A13 31/1/14 Date Due: AS2129A13 18/10‚ AS2130A13 7/3 Turnitin Score:
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3.7 Nuclear Independent Chemical Shift Analysis The Nuclear Independent Chemical Shift is measured as magnetic shielding of a molecule have been calculated at the B3LYP/6-31G theory level. Aromaticities are represented by negative NICS Values and antiaromaticity is represented by positive NICS Values. The large negative NICS Values of the title compound represent stronger aromaticity [29-35].Our present investigation of the density functional calculations of doped fullerene with glycine shows several
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Predictive ability of Hypo1 To confirm the predictive power of Hypo1‚ each compound in training set was estimated through regression analysis method. The training set compounds classified into three groups: highly active IC50 < 100 nM‚ +++; moderately active IC50 < 100 nM _ 1‚000 nM‚ ++; inactive IC50 <1‚000 nM _ > 10‚000 nM‚ +. The estimated activities by Hypo1 pharmacophore model and experimental activities of 21 training set compounds presented in Table 1. The error value is calculated by the
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angle in the SiCl2F2 molecule is approximately __________. A) 90° B) 109.5° C) 180° D) 60° E) 120° 12. The O-S-O bond angle in SO2 is slightly less than __________. A) 109.5° B) 120° C) 180° D) 60° E) 90° 13. The hybridization of orbitals on the central atom in a molecule is sp2. The electron-domain geometry about this central atom is __________. A) trigonal planar B) octahedral C) linear D) trigonal bipyramidal E) tetrahedral 14. There are
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Ronak Parikh U30682934 Experiment 2: Diels-Alder Reaction: Synthesis of cis-Norbornene-5‚6-endo-dicaroboxylic anhydride Introduction: The main goal of this experiment is to perform a Diels-Alder reaction between 2‚3-dimethyl-1‚3-butadiene and maleic anhydride‚ identify the product and hydrolyze to form the dicarboxylic acid. Diels alder reactions are classified as pericyclic reaction‚ which is a reaction which involves a cyclic rearrangement of bonding electrons‚ which means
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Chapter 8: Salts 1. Salts A salt is an ionic compound. The anion part comes from the acid while the cation part comes from a base. Example: KCl‚ KOH(aq) + HCl(aq) KCl(aq) + H2O(l) A salt is a compound formed when the hydrogen ion. H+ from an acid is replaced by a metal ion or an ammonium ion‚ NH4+. Salts Nitrate salts Carbonate salts Chloride salts Soluble All nitrate salts Potassium carbonate‚ K2CO3 Ammonium carbonate‚ (NH4)2CO3 Sodium carbonate‚ Na2CO3 All chloride salts Except Sulphate salts
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The energies effect metal dp orbitals that possess the same symmetry. Dxz a Dyz have the egp symmetry which have the ability to overlap eg(p*). This effect is similar to pi backbonding where the electron density is donated by a metal to a ligand with p* orbitals. When these orbitals interact with each other‚ porphyrin eg(p*) orbitals are lowered in energy‚ but metal dp orbtials are raised in energy due the orbitals having the same symmetry. This is evident when the Q and
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Experiment 3: Electronic structure‚ bonding and shape of some simple inorganic molecules. Introduction: In quantum chemistry‚ electronic structure is the state of motion of electrons in an electrostatic field created by stationary nuclei. The term encompass both the wave functions of the electrons and the energies associated with them. Electronic structure is obtained by solving quantum mechanical equations for the aforementioned clamped-nuclei problem. Electronic structure problem arise from the
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