Concept explainers
(a)
Interpretation: The name of given peptide using both the three-letter and one-letter abbreviations of the component amino acids is to be predicted.
Concept introduction: Peptide linkage is formed between the amino group of one amino acid and the carboxyl group of other amino acid with the loss of water molecule. Amino acids are naturally occurring compounds in which the amino group is present on the alpha carbon of carboxyl group. The name of amino acids is represented by the one-letter and three-letter abbreviations.
(b)
Interpretation: The name of given peptide using both the three-letter and one-letter abbreviations of the given component amino acids is to be predicted.
Concept introduction: Peptide linkage is formed between the amino group of one amino acid and the carboxyl group of other amino acid with the loss of water molecule. Amino acids are naturally occurring compounds in which the amino group is present on the alpha carbon of carboxyl group. The name of amino acids is represented by the one-letter and three-letter abbreviations.
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Chapter 27 Solutions
Connect Online Access 1-Semester for Organic Chemistry
- Estimate the DH°rxn of the reaction below: H H-C-C=C-H H Н A table of bond energy Bond H Bond Energy (kJ/mol) C-H 413 C-O 360 C=O 743 C-C 348 |C = C 612 O-H 463 H-H 436 + H-H -> H H-C. - H | | 1 HHHarrow_forwardShow work...don't give Ai generated solutionarrow_forwardGiven the standard enthalpies of formation for the following substances, determine the reaction enthalpy for the following reaction. 3A(g) + 1B (g) 4C (g) + 7D (g) Substance AH in kJ/mol A (g) - 25.07 B (g) - 36.51 C (g) - 90.09 D (g) + 56.11 AHran =?kJarrow_forward
- What is the change in internal energy (ΔU) when a system is heated with 42.0 J of energy while it does 110.0 J of work?arrow_forwardCan you help me solve this problem and explain what the answers are?arrow_forwardFor which reaction below does the enthalpy change under standard conditions correspond to a standard enthalpy of formation? (Choose all that applies) SO2(g) + 1/2 O2(g) → SO3(g) 2H2(g) + C(s) → CH4(g) Mg(s) + 1/2 O2(g) → MgO(s) CO(g) + H2O(g) → CO2(g) + H2(g) CO2(g) + H2(g) → CO(g) + H2O(g) 1/2 H2(g) + 1/2 N2(g) + 3/2 O2(g) → HNO3(g) CO2(g) + C(s) 2CO(g) N2(g) + 202(g) → 2NO2(g)arrow_forward
- Choose all the molecules with zero standard-enthalpy-of-formation (AH% = 0) Fe(s) FeCl2(s) N2(g) H2O(l) 02(g) C(graphite) K(s) H2O(g)arrow_forward8.5 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 125 g of water and the temperature of the solution increases by 15.58°C. Calculate the AH soln for potassium hydroxide. Assume the specific heat capacity of the solution is 4.2 J.g¨¹.ºC-1. KOH(s) → →K+ K(aq) + OH AH solution = ?kJ/mol (aq)arrow_forwardWhat will be the final temperature of a 8.79 g piece of iron (CP = 25.09 J/(mol · oC)) initially at 25.0oC, if it is supplied with 302.8 J from a stove?arrow_forward
- Identify the set of stoichiometric coefficients that balances the reaction equation for the combustion of the hydrocarbon below: _ C19 H4002 → CO2 + H2Oarrow_forwardThe cooling system in an automobile holds 11.3 L of ethylene glycol antifreeze. How much energy is absorbed when the temperature of the ethylene glycol goes from 20oC to 100oC? The density and specific heat capacity of ethylene glycol are 1.11 g/mL and 2.42 J/(g ⋅ oC), respectively.arrow_forwardWhich statement about the following chemical reaction is not correct? 2NH3+202 →→→ N2O + 3H₂O ○ It requires 2 mol of ammonia to produce 3 mol of water. It requires 2 mol of dioxygen to produce 1 mol of N2O. ○ Nine moles of water are produced when four moles of ammonia are consumed. Two moles of N2O would be produced when four moles of dioxygen are consumed. Two moles of ammonia react with two moles of dioxygen.arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
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