Chemistry Chapter 3 Extra problem solutions

Chemistry Chapter 3 Extra problem solutions - Chapter Three...

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1. Balance the following chemical equations: a) 2 Na + 2 H 2 O Æ 2 NaOH( aq ) + H 2 ( g ) b) C 2 H 4 + 3 O 2 Æ 2 CO 2 + 2 H 2 O c) 2 Al + 6 HCl Æ 2 AlCl 3 + 3 H 2 d) N 2 O 5 + H 2 O Æ 2 HNO 3 e) (NH 4 ) 2 Cr 2 O 7 Æ N 2 + Cr 2 O 3 + 4 H 2 O f) PCl 3 + 3 H 2 O Æ H 3 PO 3 + 3 HCl g) Mg 3 N 2 + 8 HCl Æ 3 MgCl 2 + 2 NH 4 Cl h) 2 C 6 H 6 + 15 O 2 Æ 12 CO 2 + 6 H 2 O i) 4 C 3 H 5 NO + 19 O 2 Æ 12 CO 2 + 4 NO 2 + 10 H 2 O 2. Consider the following chemical equation: C 2 H 5 OH + O 2 Æ CO 2 + H 2 O a) How many moles of CO 2 are produced when 5.00 mol of C 2 H 5 OH is burned according to the equation? 10.0 mol CO 2 b) How many grams of CO 2 are produced when 5.00 g of C 2 H 5 OH is burned according to the equation? 9.55 g CO 2 3. Consider the following equation: Na 2 SiO 3 + 8HF Æ H 2 SiF 6 + 2NaF + 3H 2 O a) How many moles of HF are required to dissolve 1.50 mol of Na 2 SiO 3 ? 12.0 mol HF
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This note was uploaded on 03/17/2009 for the course CHEM 1211 taught by Professor Atwood during the Fall '07 term at University of Georgia Athens.

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Chemistry Chapter 3 Extra problem solutions - Chapter Three...

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