week5 - 4 [Fe(CN) 6 ] 3 5) The line structure of cinnamic...

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Chemistry 1P Discussion Week 5: Moles, Molar Mass, and Mass Percentage, and Empirical/Molecular Formulas 1) Find the molar masses of the following compounds a) Li 2 CO 3 b) CS 2 c) CHCl 3 d) C 6 H 8 O 6 e) KNO 3 f) Mg 3 N 2 2) Calculate the percent composition by mass of each element in ammonium nitrate (NH 4 NO 3 ). 3) Determine the number of moles of aluminum in 0.2154 kg of Al.
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Chemistry 1P Discussion Week 5: Moles, Molar Mass, and Mass Percentage, and Empirical/Molecular Formulas 4) Determine the mass percent of iron in Fe
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Unformatted text preview: 4 [Fe(CN) 6 ] 3 5) The line structure of cinnamic acid is shown below. a ) Determine the molecular formula of cinnamic acid. b) Find the molar mass. c) Determine the number of molecules present in 0.512g of cinnamic acid. 6) A compound contains 85.7% C and 14.3% H, and has a molar mass of 84.0 g/mol. a) What is the empirical formula of the compound? b) What is the molecular formula of the compound?...
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This note was uploaded on 11/23/2010 for the course CHEM Chem 1P taught by Professor Ericpotma during the Winter '10 term at UC Irvine.

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week5 - 4 [Fe(CN) 6 ] 3 5) The line structure of cinnamic...

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