Solution-The term commonly used for a chain of amino acids | Quick Homework Help

Question 1.1. Rank butane (CH3CH2CH2CH3), butanoic acid (CH3CH2CH2COOH), and pentane (CH3CH2CH2CH2CH3) in order of increasing boiling point. (From lowest to highest.)  

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;butane < butanoic acid < pentane&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;butane < pentane < butanoic acid&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;butanoic acid < pentane < butane&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pentane < butanoic acid < butane

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Question 2.2.&nbsp;Choose the equilibrium constant that indicates the greatest relative amount of reactant concentration at equilibrium. &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.1 x 10-7&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.3 x 107&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.7 x 102&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.3 x 10-2

Question 3.3.&nbsp;Which of the following is the conjugate acid of NH3? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;NH2–&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;NH4+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HNO3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;H3O+

Question 4.4.&nbsp;What volume of 0.200 M HCl is required to completely neutralize 50.00 mL of 0.150 M KOH? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.50 mL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;50.0 mL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;66.7 mL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;37.5 mL

Question 5.5.&nbsp;The&nbsp;fluid mosaic model&nbsp;proposes that &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;membranes can move like a fluid.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;proteins are embeIDed into the cell membrane.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;materials that are fluid move across a membrane.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the composition of membranes includes a mosaic fluid

Question 6.6.&nbsp;The IUPAC name of the molecule below is

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;hydroxyl -2,4-dichlorocyclohexene&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3,4-dichlorophenol&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2,4-dichlorophenol&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1,3-dichlorophenol

Question 7.7.&nbsp;Which of the following is the conjugate base of the acid, carbonic acid?

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;H2CO3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;H2O&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;H3O+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HCO3–

Question 8.8.&nbsp;How many alkane constitutional isomers exist with the formula C5H12? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;more than 5

Question 9.9.&nbsp;The side chain of the amino acid tyrosine is shown here.The side chain is classified as ___. &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;nonpolar&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;polar-acidic&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;polar-basic&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;polar-neutral

Question 10.10.&nbsp;Which of the following lipids is not derived from cholesterol? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;progesterone&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;thromboxane&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cortisol&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;testosterone&nbsp;51.Which is an ?-amino acid?&nbsp;*a)&nbsp;b)&nbsp;c)&nbsp;d)

Question 11.11.&nbsp;Antacids may contain which ion to reduce acidity? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Na+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CO3­2-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Al3+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cl–

Question 12.12.&nbsp;In which of the following levels of protein structure can hydrogen bonding NOT play a role? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;primary&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;secondary&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tertiary&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;quaternary

Question 13.13.&nbsp;What is the pH of a solution in which [H3O]+&nbsp;is 2.2 x 10-12M? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.34&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.54 x 10-3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;11.66&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.42

Question 14.14.&nbsp;What level of protein structure is not disturbed by denaturing? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tertiary structure&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;primary structure&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;secondary structure&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;quaternary structure

Question 15.15.&nbsp;The pH of a 1.25 x 10-3&nbsp;M NaOH solution is: &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.90&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.00&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;11.1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.10&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.9

Question 16.16.&nbsp;What is the concentration of [H3O+] in an aqueous solution when the [OH–] is 5.2 x 10-9&nbsp;M? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.9 x 10-6&nbsp;M&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.7 M&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.0 x 10-14&nbsp;M&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9.8 x 10-9&nbsp;M

Question 17.17.&nbsp;The element found in the center of the heme prosthetic group is ___. &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iron&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;sulfur&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;nitrogen&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;carbon

Question 18.18.&nbsp;The&nbsp;Kafor the reaction of acetic acid and water shown below is 1.8 x 10-5.&nbsp;Which of the following statements is true at pH 7? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;there is much more acetic acid than acetate ion&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;there is more acetate ion than acetic acid&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the concentration of acetate ion is equal to that of acetic acid&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the pH is lower than pKa&nbsp;of acetic acid

Question 19.19.&nbsp;Which of the following statements is true about alkanes? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;alkanes contain polar bonds&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;alkanes are attracted to one another by London forces&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;alkanes are polar molecules&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;alkanes are unsaturated hydrocarbons

Question 20.20.&nbsp;The structure of glycerophospholipids contains &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a phosphate group, glycerol, three fatty acids, and a sugar molecule.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a phosphate group, glycerol, two fatty acids, and an alcohol molecule.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a phosphate group, a cyclic carbon ring, and variable numbers of fatty acids.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a phosphate group, a carbohydrate molecule, an alcohol, and fatty acids.

Question 21.21.&nbsp;Kw, the equilibrium constant for the ionization of water by the equation below, is 1.0 x 10-14. What does that mean when we are considering pure water?

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;More ions exist than water molecules.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The majority of the molecules present are in the form of H2O.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The amount of water is the same as the amount of the ions present.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;There will always be more hydronium ions present than water at equilibrium.

Question 22.22.&nbsp;Carbon must form how many bonds? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4

Question 23.23.&nbsp;What is the function of nonsteroidal anti-inflammatory drugs (NSAID)? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To interrupt the production of prostaglandins from arachidonic acid.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To interfere with the production of anabolic steroids.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To facilitate the production of cyclooxygenase.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To stimulate the production of leukotrienes.

Question 24.24.&nbsp;You produce 500 mL of a 0.001 M HClO4, which ionizes completely in water. What is the pH you should expect? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pH = 0.5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pH = 3.0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pH = 2.7&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pH = 500

Question 25.25.&nbsp;The ?-helix and ?-pleated sheet are both forms of the ___ structure of proteins. &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;primary&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;secondary&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tertiary&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;quaternary

Question 26.26.&nbsp;The ethylammonium ion, CH3CH2NH3+&nbsp;has a pKa&nbsp;of 10.81. It reacts with water to form ethylamine, CH3CH2NH2and H3O+&nbsp;as shown below.Which of the following statements is true at pH 7? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ethylammonium ion predominates&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ethylamine predominates&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the concentration of ethylamine equals that of ethylammonium ion&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the pH is higher than pKa&nbsp;of the ethylammonium ion

Question 27.27.&nbsp;Which of the following is the conjugate acid of the bicarbonate ion, HCO3–? &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;H2CO3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CO32-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CO2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;H3O+

Question 28.28.&nbsp;A solution in which the concentration of H+&nbsp;is greater than the concentration of OH-&nbsp;will &nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;have a pH greater than 7.0 and be basic.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;have a pH less than 7.0 and be basic.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;have a pH greater than 7.0 and be acidic.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Quick Homework Essays

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