reader5 - Chapter 3: Chemical Compounds 5, 7, 12, 15, 17,...

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Chapter 3: Chemical Compounds 5, 7, 12, 15, 17, 19, 21, 25, 27, 35, 43, 47, 51, 53, 55, 59, 61, 63, 67, 86 , 92 The Avogadro Constant and the Mole 5.” Calculate the total number of (a) atoms in one molecule of trinitrotoluene (TNT), CH 3 C 6 H 2 (NO 2 ) 3 ; (b) atoms in 0.00102 mol CH 3 (CH 2 ) 4 CH 2 OH; (c) F atoms in 12.15 mol C 2 HBrCIF 3 . 7.” The amino acid methionine, which is essential in human diets, has the molecular formula C 5 H 11 NO 2 S. Determine (a) its molecular mass; (b) the number of moles of H atoms per mole of methionine; (c) the number of grams of C per mole of methionine;
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the number of C atoms in 9.07 mol methionine 12.” Determine the mass , in grams, of (a) 6.25 × 10 2 mol P 4 (b) 4.03 × 10 24 molecules of stearic acid, C 18 H 36 O 2 (c) a quantity of the amino acid lysine, C 6 H 14 N 2 O 2 , containing 3.03 mol N atoms. Chemical Formulas 15.” Explain which of the following statement(s) is (are) correct concerning glucose (blood sugar), C 6 H 12 O 6 . (a) The percentages, by mass, of C and O are the same as in CO. (b) The ratio of C:H:O atoms is the same as in dihydroxyacetone, (CH 2 OH) 2 CO. (c)
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This note was uploaded on 12/04/2009 for the course CHE 15940 taught by Professor Madsen during the Spring '09 term at UC Davis.

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reader5 - Chapter 3: Chemical Compounds 5, 7, 12, 15, 17,...

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