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Study Resources (Chemistry)

161) In the protein, Val-Tyr-His-Pro, which amino acid contains the N-terminal group? A) histidine B) proline C) tyrosine D) valine 162) In the protein, Asn-Phe-Cys-Lys, which amino acid contains the C-terminal group? A) asparagine B) cysteine C) lysine D) phenylalanine 163) How many possible tripeptides can be made with the amino acids: tyrosine, histidine, and cysteine,each used only once? A) 3 B).
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    Example 2.5-2 Five hundred batches of a pigment are produced each week. In the plant's quality assurance (QA) program, each batch is subjected to a precise color analysis test. If a batch does not pass the test, it is rejected and sent back for reformulation. Let Y be the number of bad.
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201) Identify the amino acid shown below. A) Alanine (Ala) B) Glycine (Gly) C) Isoleucine (Ile) D) Leucine (Leu) 202) Identify the amino acid shown below. A) Methionine (Met) B) Phenylalanine (Phe) C) Proline (Pro) D) Tryptophan (Trp) 203) Identify the amino acid shown below. A) Methionine (Met) B) Phenylalanine (Phe) C) Proline (Pro) D) Tryptophan (Trp) 204) Identify the amino.
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11) The number of different monochloro substitution products (C5H11Cl) that can form from the reaction of 2-methylbutane with Cl2 is ________. 12) The number of different monochloro substitution products (C5H11Cl) that can form from the reaction of 2,2-dimethylpropane with Cl2 is ________. 13) The combustion of methane has a standard.
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111) Which of the compounds shown above is correctly identified by the name pentane according to the IUPAC system of naming compounds? A) all B) none C) only (2) D) only (3) 112) Which of the compounds shown above is correctly identified by the name 2-Methylbutane? A) All are 2-Methylbutane.all B) none C) only (1) D) only (1) and.
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  Test Yourself 1. Think of several possible explanations for the observed variation in the weekly production rate. 2. If you used the sample mean of the given data as a basis, what would you predict the next weekly production rate to be? 3. come up with a better prediction, and explain your reasoning.   Test.
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171) Which suffix on a ketone or aldehyde indicates a sugar? A) -ane B) -ene C) -one D) -ose 172) The monosaccharide shown below is a(n) A) aldohexose. B) aldopentose. C) ketohexose. D) ketopentose. 173) The monosaccharide shown below is a(n) A) aldohexose. B) aldopentose. C) ketohexose. D) ketopentose. 174) What class of compounds are cyclic? A) DNA B) lipids C) monosaccharides D) proteins 175) In water, which form of.
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211) Identify the amino acid shown below. A) Asparagine (Asn) B) Aspartic acid (Asp) C) Glutamic acid (Glu) D) Glutamine (Gln) 212) Identify the amino acid shown below. A) Asparagine (Asn) B) Aspartic acid (Asp) C) Glutamic acid (Glu) D) Glutamine (Gln) 213) Identify the amino acid shown below. A) Asparagine (Asn) B) Aspartic acid (Asp) C) Glutamic acid (Glu) D) Glutamine (Gln) 214) Identify.
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131) Identify the functional groups in the following compound. A) alcohol and ketone B) alcohol, amine, and ketone C) amine and carboxylic acid D) amine, hydroxide, and ketone 132) Identify the functional groups in the following compound. A) alcohol B) alcohol and aldehyde C) alcohol and ketone D) aldehyde and hydroxide 133) Identify the carboxylic acid and alcohol from.
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21) The cycloalkane represented by a hexagon is named ________ and has the molecular formula ________. 22) When toluene C6H5CH3 is reacted with Br2/FeBr3, the number of different products that can be formed is ________. 23) C2H6O is the empirical formula for both ethyl alcohol, CH3CH2OH and dimethyl ether, CH3OCH3. In.
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221) Based on the structure of its side chains, the amino acid shown below can be classified as A) acidic. B) basic. C) neutral, non-polar. D) neutral, polar. 222) Based on the structure of its side chains, the amino acid shown below can be classified as A) acidic. B) basic. C) neutral, non-polar. D) neutral, polar. 223) Based on the.
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71) Which of the following statements about amines is not correct? Amines are A) bases (proton acceptors). B) converted to ammonium salts by reaction with HCl. C) organic derivatives of ammonia. D) very water soluble. 72) The boiling point of 1-propanol should be ________ than the boiling point of methyl ethyl ether. A) higher than B) lower.
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231) Based on the structure of its side chains, the amino acid shown below can be classified as A) acidic. B) basic. C) neutral, non-polar. D) neutral, polar. 232) Based on the structure of its side chains, the amino acid shown below can be classified as A) acidic. B) basic. C) neutral, non-polar. D) neutral, polar. 233) Based on the.
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  Test Yourself 1. What is a dimensionally homogeneous equation? If an equation is dimensionally homogeneous, is it necessarily valid? If an equation is valid, is it dimensionally homogeneous? 2. If y(m/s2) = az(m3), what are the units of a? 3. What is a dimensionless group? What multiplicative combination of r(m), s(m/s2), and t(s).
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101) What hybrid orbitals are used by carbon to form covalent bonds with hydrogen? A) sp B) sp2 C) sp3 D) sp3d Shown are ball-and-stick (1) and space-filling (2) models of ethylene.     102) What is the H-C-H bond angle? A) 90° B) 109.5° C) 120° D) 180° 103) What hybrid orbitals are used by carbon to form covalent bonds with hydrogen? A).
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Example A.2-3 Find the solution of the following simultaneous equations: g1(x,y)=2x+y-(x+y)1/2-3=0 g2(x,y)=2x-y-5/(x+y) =0 2. Using the Wegstein algorithm. 3. Using the Newton-Raphson method. In each case, Use a starting value (x=2, y=2) and stop when the relative changes in x and y from one iteration to the next are each less than 0.001. .
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  Test Yourself 1. The following plots yield straight lines. What are the equations that relate the variables? (a) P versus t one rectangular coordinates. (b) P (logarithmic axis) versus t on a semilog plot. (c) P versus t on a log plot. (d) y2-3 (logarithmic axis) versus 1/x2 on a semilog plot. (Express the answer.
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151) Which one of the following amino acids contains a polar side chain? A) alanine B) glycine C) serine D) valine 152) Which of the following amino acids contains a benzyl group? A) glycine B) isoleucine C) methionine D) phenylalanine 153) Which one of the amino acids contains a double ring structure? A) phenylalanine B) proline C) tryptophan D) tyrosine 154) Which amino acid has.
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191) The nucleotide sequence, T-A-G, stands for A) threonine-alanine-glutamine B) thymine-adenine-guanine C) tyrosine-asparagine-glutamic acid D) None of these 192) Which of the following bases pairs with adenine in DNA? A) cytosine B) guanine C) thymine D) uracil 193) What is the complementary DNA sequence to ATATGGTC? A) CGCGTTGA B) GCGCAACT C) TATACCAG D) TUTUCCAG 194) What is the complementary mRNA sequence to GCTATACCGT? A) ATCGCGTTAC B) CGAUAUGGCA C).
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Example A.3-1 The heat capacity of a gas is tabulated at a series of temperatures: Calculate the change in enthalpy for 3.00 g-moles of this gas going from 20°C to 230°C. Test yourself Suppose f(x)=x3+4. Evaluate f(x)dx: 1. Analytically. 2. Using the trapezoidal rule, with points at x=0,1,2,3,4. 3. Using simpson's rule, with points at.
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23.3   Short Answer Questions 1) In organic molecules the molecular geometry exhibited by carbon is ________ when carbon is bonded to four atoms by four single bonds, ________ when carbon is bonded to three atoms by one double bond and two single bonds, and ________ when carbon is bonded to two.
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Test yourself Classify the following single variable equations as linear or nonlinear, considering a,b and c as constants. 1.3x+17=23x-12 2.3x=a(In x)+b 3. x exp(x)=14 4. axy-b2=cy/x (a) x is known (b) y is known 5. 14x cos(y)-8/z=23 (a) x and y are known (b) x and z are known (c) y and y are known .
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  Test Yourself 1. What are the factors (numerical values and units) needed to convert (a) meters to millimeters? (b) nanoseconds to seconds? (c) square centimeters to square meters? (d) cubic feet to cubic meters (use the conversion factor table on the inside front cover)? (e) horsepower to British thermal units per second? 2. What is the derived.
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181) Lipids are characterized by what property? A) chemical reactivity B) chemical structure C) refractive index D) solubility 182) Which statement below regarding fatty acids is not correct? Fatty acids A) are always liquids. B) are long chain carboxylic acids. C) are usually unbranched chains. D) usually have an even number of carbon atoms. 183) All of the fatty acids.
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81) The H-C-H bond angles in acetic acid, shown below, are closest to O ? CH3C–OH A) 90°. B) 109.5°. C) 120°. D) 180°. 82) What compound is formed by the oxidation of 2-butanol? A) butanal B) butanoic acid C) 2-butanone D) 2-butene 83) What is the common name for the simplest ketone, propanone? A) acetal B) acetone C) carbanone D) formalin 84) Which of the following.
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121) To which family does this organic compound belong? A) alkane B) alkene C) alkyne D) arene 122) To which family does this organic compound belong? A) alkane B) alkene C) alkyne D) arene 123) To which family does this organic compound belong? A) alcohol B) aldehyde C) ether D) ketone 124) To which family does this organic compound belong? A) alcohol B) aldehyde C) ether D) ketone 125) To.
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  Test Yourself 1. Express the following quantities in scientific notation and indicate how many significant figures each has. (a) 12,200 (b) 12,200.0 (c) 0.003040 2. Express the following quantities in standard decimal form and indicate how many significant figures each has. (a) 1.34 × 105 (b) 1.340 × 10-2 (c) 0.00420 × 106 .
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Test yourself An effort to solve the equation x=f(x) begins with two successive substitution steps: x=2.00----->f(x)=2.30 x=2.30----->f(x)=2.45 1. Calculate the next value of x using the Wegstein algorithm. 2. Sketch a plot of f(x) versus x, Showing the two given points, and show graphically that the value of x you calculated is correct. Example A.2-3.
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