# Co 2g 2nh 3g h 2 n 2 co l h 2 o l 183 using bond

• Notes
• MCQubed
• 283
• 100% (1) 1 out of 1 people found this document helpful

This preview shows page 182 - 191 out of 283 pages.

CO 2(g) + 2NH 3(g) (H 2 N) 2 CO (l) + H 2 O (l)
183 Using bond energies to calculate D H o rxn Carbon dioxide reacts with ammonia to form urea and water, what is the enthalpy of the reaction? CO 2(g) + 2NH 3(g) (H 2 N) 2 CO (l) + H 2 O (l)
184 Using bond energies to calculate D H o rxn Carbon dioxide reacts with ammonia to form urea and water, what is the enthalpy of the reaction? CO 2(g) + 2NH 3(g) (H 2 N) 2 CO (l) + H 2 O (l)
185 Using bond energies to calculate D H o rxn 4CH 3 CCCH 2 NH 2 + 23O 2 16CO 2 + 14H 2 O + 2N 2 C H (413 kJ/mol); C C (347 kJ/mol); C ≡ C (839 kJ/mol); C N (305 kJ/mol) N H (391 kJ/mol ); O ═ O (498 kJ/mol) C ═ O from CO 2 (799 kJ/mol); O H (467 kJ/mol) N N (945 kJ/mol);
186 Using bond energies to calculate D H o rxn 4CH 3 CCCH 2 NH 2 + 23O 2 16CO 2 + 14H 2 O + 2N 2 C H (413 kJ/mol); C C (347 kJ/mol); C ≡ C (839 kJ/mol); C N (305 kJ/mol) N H (391 kJ/mol ); O ═ O (498 kJ/mol) C ═ O from CO 2 (799 kJ/mol); O H (467 kJ/mol) N N (945 kJ/mol); D H o rxn = D H o reactant bonds broken - D H o product bonds formed
187 Using bond energies to calculate D H o rxn 4CH 3 CCCH 2 NH 2 + 23O 2 16CO 2 + 14H 2 O + 2N 2 C H (413 kJ/mol); C C (347 kJ/mol ); C ≡ C (839 kJ/mol); C N (305 kJ/mol) N H (391 kJ/mol ); O ═ O (498 kJ/mol); C ═ O from CO 2 (799 kJ/mol); O H (467 kJ/mol) N N (945 kJ/mol); You must take care, additional info can be given so get the Lewis structure correct and use the correct bond energies. D H o rxn = D H o reactant bonds broken - D H o product bonds formed D H o rxn = [ 4 x 5 mol C-H (413 kJ/mol) + 4 x 1 mol C ≡ C (839 kJ/mol) + 4 x 2 mol C-C (347 kJ/mol) + 4 x 1 mol C N (305 kJ/mol) + 4 x 2 mol N H (391 kJ/mol) + 23 mol O ═ O (498 kJ/ mol) ] [ 32 mol C ═ O from CO 2 (799 kJ/mol) + 28 mol O H (467 kJ/mol) + 2 mol N ≡ N (945 kJ/ mol) ] D H o rxn = [(8260 + 3356 + 2776 + 1220 + 3128) + 11454] [(25568 kJ + 13016 kJ + 1890 kJ) = -10340 kJ
188 Using bond energies to calculate D H o rxn 4CH 3 CCCH 2 NH 2 + 23O 2 16CO 2 + 14H 2 O + 2N 2 C H (413 kJ/mol); C C (347 kJ/mol ); C ≡ C (839 kJ/mol); C N (305 kJ/mol) N H (391 kJ/mol ); O ═ O (498 kJ/mol); C ═ O from CO 2 (799 kJ/mol); O H (467 kJ/mol) N N (945 kJ/mol); You must take care, additional info can be given so get the Lewis structure correct and use the correct bond energies. Second question about CH 3 CCCH 2 NH 2 : What is the hybridization of the central atoms and how many sigma and pi bonds does CH 3 CCCH 2 NH 2 have ?
189 Using bond energies to calculate D H o rxn 4CH 3 CCCH 2 NH 2 + 23O 2 16CO 2 + 14H 2 O + 2N 2 C H (413 kJ/mol); C C (347 kJ/mol ); C ≡ C (839 kJ/mol); C N (305 kJ/mol) N H (391 kJ/mol ); O ═ O (498 kJ/mol); C ═ O from CO 2 (799 kJ/mol); O H (467 kJ/mol) N N (945 kJ/mol); You must take care, additional info can be given so get the Lewis structure correct and use the correct bond energies. Second question about CH 3 CCCH 2 NH 2 : What is the hybridization of the central atoms left to right and how many sigma and pi bonds does CH 3 CCCH 2 NH 2 have? hybridization sp 3 ; sp; sp; sp 3 ; sp 3 . Sigma bonds: 11 pi bonds: 2
190 Here are some VSEPR animations that do not require a plug-in to view.