Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
8th Edition
ISBN: 9780134015187
Author: John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher: PEARSON
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Chapter 4.10, Problem 4.22KCP
Interpretation Introduction
Interpretation:
For the compound methyl lithium (
Concept introduction:
Covalent bonds are formed by sharing of electrons between atoms.
The polarity of a bond is arises due to the difference in electronegativity of atoms present in that bonding.
The direction of net polarity is the resultant vector of the vectors drawn for dipole moment of each bonds.
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Draw dipeptide Arg-Thr at pH 6.0. Circle the six atoms that are restricted in one plane. Calculate its approximate pI assuming pKa for NH3+ is 10.0, pKa for COOH is 3.0, PKR for Arg is 12.0
Mixtures of amino acids can be analyzed by first separating the mixture into its components through ionexchange chromatography. Amino acids placed on a cation-exchange resin containing sulfonate ( -SO3-) groups flow down the column at different rates because of two factors that influence their movement: (1) ionic attraction between the sulfonate residues on the column and positively charged functional groups on the amino acids, and (2) aggregation of nonpolar amino acid side chains with the hydrophobic backbone of the polystyrene resin. For each pair of amino acids listed, determine which will be eluted first from the cation-exchange column by a pH 7.0 buffer. (a) Aspartate and lysine (b) Arginine and methionine(c) Glutamate and valine (d) Glycine and leucine (e) Serine and alanine
Mixtures of amino acids can be analyzed by first separating the mixture into its components through ion‑exchange chromatography.
Amino acids placed on a cation‑exchange resin containing sulfonate (−SO−3)(−SO3−) groups flow down the column at different rates because of two factors that influence their movement: (1) ionic attraction between the sulfonate residues on the column and positively charged functional groups on the amino acids, and (2) aggregation of nonpolar amino acid side chains with the hydrophobic backbone of the polystyrene resin.
Note that the ionic attraction is more important than hydrophobicity for this column media.
For each pair of amino acids, identify which will be eluted first from a cation‑exchange column using a pH 7.0pH 7.0 buffer.
Chapter 4 Solutions
Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
Ch. 4.1 - Prob. 4.1PCh. 4.2 - Prob. 4.2PCh. 4.2 - Prob. 4.3PCh. 4.3 - Prob. 4.4PCh. 4.3 - Prob. 4.5PCh. 4.4 - The BF3 molecule can also react with NH3 by...Ch. 4.5 - Prob. 4.7PCh. 4.7 - Prob. 4.8PCh. 4.7 - Add lone pairs where appropriate to the following...Ch. 4.7 - Prob. 4.10P
Ch. 4.7 - Prob. 4.11PCh. 4.7 - The molecular model shown here is a representation...Ch. 4.7 - Prob. 4.1CIAPCh. 4.7 - Prob. 4.2CIAPCh. 4.7 - Prob. 4.13PCh. 4.8 - Prob. 4.3CIAPCh. 4.8 - Prob. 4.4CIAPCh. 4.8 - Prob. 4.14PCh. 4.8 - Prob. 4.15PCh. 4.8 - Prob. 4.16PCh. 4.8 - Prob. 4.17KCPCh. 4.9 - The elements H, N, O, P, and S are commonly bonded...Ch. 4.9 - Prob. 4.19PCh. 4.10 - Look at the molecular shape of formaldehyde (CH2O)...Ch. 4.10 - Prob. 4.21PCh. 4.10 - Prob. 4.22KCPCh. 4.11 - Prob. 4.5CIAPCh. 4.11 - Prob. 4.6CIAPCh. 4.11 - Prob. 4.23PCh. 4.11 - Prob. 4.24PCh. 4 - What is the geometry around the central atom in...Ch. 4 - Prob. 4.26UKCCh. 4 - The ball-and-stick molecular model shown here is a...Ch. 4 - Prob. 4.28UKCCh. 4 - Prob. 4.29UKCCh. 4 - Prob. 4.30UKCCh. 4 - What is a covalent bond, and how does it differ...Ch. 4 - Prob. 4.32APCh. 4 - When are multiple bonds formed between atoms and...Ch. 4 - Identify the bonds formed between the following...Ch. 4 - Prob. 4.35APCh. 4 - Prob. 4.36APCh. 4 - Prob. 4.37APCh. 4 - Prob. 4.38APCh. 4 - Prob. 4.39APCh. 4 - Prob. 4.40APCh. 4 - Prob. 4.41APCh. 4 - Prob. 4.42APCh. 4 - Prob. 4.43APCh. 4 - Prob. 4.44APCh. 4 - Prob. 4.45APCh. 4 - Prob. 4.46APCh. 4 - Prob. 4.47APCh. 4 - If a research paper appeared reporting the...Ch. 4 - Consider the following possible structural...Ch. 4 - Prob. 4.50APCh. 4 - Prob. 4.51APCh. 4 - Prob. 4.52APCh. 4 - Prob. 4.53APCh. 4 - Prob. 4.54APCh. 4 - Draw a Lewis structure for the following...Ch. 4 - Prob. 4.56APCh. 4 - Ethanol, or grain alcohol, has the formula C2H6O...Ch. 4 - Prob. 4.58APCh. 4 - Tetrachloroethylene, C2Cl4, is used commercially...Ch. 4 - Prob. 4.60APCh. 4 - The carbonate ion, CO32, contains a double bond....Ch. 4 - Prob. 4.62APCh. 4 - Prob. 4.63APCh. 4 - Prob. 4.64APCh. 4 - Prob. 4.66APCh. 4 - Predict the geometry around each carbon atom in...Ch. 4 - Prob. 4.68APCh. 4 - Prob. 4.69APCh. 4 - Prob. 4.70APCh. 4 - Prob. 4.71APCh. 4 - Prob. 4.72APCh. 4 - Which of the following bonds are polar? If a bond...Ch. 4 - Prob. 4.74APCh. 4 - Based on electronegativity differences, would you...Ch. 4 - Arrange the following molecules in order of the...Ch. 4 - Prob. 4.77APCh. 4 - Prob. 4.78APCh. 4 - Prob. 4.79APCh. 4 - Prob. 4.80APCh. 4 - Prob. 4.81APCh. 4 - Prob. 4.82APCh. 4 - Prob. 4.83APCh. 4 - Prob. 4.84APCh. 4 - Prob. 4.85CPCh. 4 - Prob. 4.86CPCh. 4 - Prob. 4.87CPCh. 4 - Prob. 4.88CPCh. 4 - Prob. 4.89CPCh. 4 - The phosphonium ion, PH4+, is formed by reaction...Ch. 4 - Prob. 4.91CPCh. 4 - Prob. 4.92CPCh. 4 - Prob. 4.93CPCh. 4 - Prob. 4.94CPCh. 4 - Prob. 4.95CPCh. 4 - Prob. 4.96CPCh. 4 - Prob. 4.97CPCh. 4 - Write Lewis structures for molecules with the...Ch. 4 - Prob. 4.99CPCh. 4 - Prob. 4.100GPCh. 4 - Hydrazine is a substance used to make rocket fuel....Ch. 4 - Prob. 4.102GPCh. 4 - Titanium forms both molecular and ionic compounds...
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