Organic Chemistry
4th Edition
ISBN: 9780073402772
Author: Janice G. Smith
Publisher: MCG
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Textbook Question
Chapter 3, Problem 3.40P
Explain why diethylether
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Calculating the pH at equivalence of a titration
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Your answer is incorrect.
0/5
a
A chemist titrates 70.0 mL of a 0.7089 M hydrocyanic acid (HCN) solution with 0.4574M KOH solution at 25 °C. Calculate the pH at equivalence. The pK of
hydrocyanic acid is 9.21.
Round your answer to 2 decimal places.
Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of KOH solution added.
pH
=
11.43]
G
00.
18
Ar
B•
Biological Macromolecules
Naming and drawing the products of aldose oxidation and reduction
aw a Fischer projection of the molecule that would produce L-ribonic acid if it were subjected to mildly oxidizing reaction conditions.
Click and drag to start drawing a
structure.
X
AP
‡
1/5
Naor
Explanation
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● Biological Macromolecules
Identifying the parts of a disaccharide
Take a look at this molecule, and then answer the questions in the table below it.
CH2OH
O
H
H
H
OH
OH
OH
H
H
CH2OH
H
O
OH
H
OH H
H
H
H
OH
Is this a reducing sugar?
Does this molecule contain a glycosidic bond?
If you said this molecule does contain a glycosidic bond, write the symbol
describing it.
If you said this molecule does contain a glycosidic bond, write the common
names (including anomer and enantiomer labels) of the molecules that
would be released if that bond were hydrolyzed.
If there's more than one molecule, separate each name with a comma.
Explanation
Check
O yes
X
O no
○ yes
O no
U
Chapter 3 Solutions
Organic Chemistry
Ch. 3 - Prob. 3.1PCh. 3 - Prob. 3.2PCh. 3 - Draw the structure of a compound fitting each...Ch. 3 - Draw structures that fit each description and name...Ch. 3 - What types of intermolecular forces are present in...Ch. 3 - Prob. 3.6PCh. 3 - Explain why the boiling point of propanamide, is...Ch. 3 - Predict which compound in each pair has the higher...Ch. 3 - Prob. 3.9PCh. 3 - Prob. 3.10P
Ch. 3 - a Label the hydrophobic and hydrophilic portions...Ch. 3 - Prob. 3.12PCh. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - Nonactin and valinomycin each contain only two...Ch. 3 - Prob. 3.17PCh. 3 - Problem 3.26 Label the electrophilic and...Ch. 3 - Problem 3.27 Considering only electron density,...Ch. 3 - The fact that sweet-tasting carbohydrates like...Ch. 3 - 3.29
Identify the functional groups in the...Ch. 3 - Prob. 3.22PCh. 3 - 3.32 Identify the functional groups in each...Ch. 3 - Draw the seven constitutional isomers having...Ch. 3 - 3.33 Identify each functional group located in the...Ch. 3 - Draw seven constitutional isomers with molecular...Ch. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Intramolecular force of attraction are often...Ch. 3 - 3.40 (a) Draw four compounds with molecular...Ch. 3 - Prob. 3.32PCh. 3 - Explain why CH3CH2NHCH3 has higher boiling point...Ch. 3 - Prob. 3.34PCh. 3 - Prob. 3.35PCh. 3 - Explain the observed trend in the melting points...Ch. 3 - Prob. 3.37PCh. 3 - Prob. 3.38PCh. 3 - Prob. 3.39PCh. 3 - 3.48 Explain why diethylether and have similar...Ch. 3 - Prob. 3.41PCh. 3 - 3.50 Predict the solubility of each of the...Ch. 3 - Prob. 3.43PCh. 3 - Prob. 3.44PCh. 3 - THC is the active component in marijuana, and...Ch. 3 - Prob. 3.46PCh. 3 - Prob. 3.47PCh. 3 - Prob. 3.48PCh. 3 - Label the electrophilic and nucleophilic sites in...Ch. 3 - By using only electron density arguments,...Ch. 3 - Prob. 3.51PCh. 3 - Prob. 3.52PCh. 3 - Prob. 3.53PCh. 3 - Prob. 3.54PCh. 3 - Prob. 3.55PCh. 3 - Recall from section 1.10B that there is restricted...
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- Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure Yes. Is the proposed Lewis structure reasonable? Cl- : 2: :Z: :Z: N—N : 0: C C1: O CO No, it has the wrong number of valence electrons. The correct number is: ☐ No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* ☐ Yes. No, it has the wrong number of valence electrons. The correct number is: ☐ No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* | Yes. No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* | If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "0,0". ☑arrow_forwardUse the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions ΔΗ is (pick one) A This reaction is faster above 103. °C than below. AS is (pick one) ΔΗ is (pick one) B This reaction is spontaneous only above -9. °C. AS is (pick one) ΔΗ is (pick one) C The reverse of this reaction is always spontaneous. AS is (pick one) 18 Ararrow_forwardUse the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions A The reverse of this reaction is always spontaneous but proceeds slower at temperatures below 41. °C. ΔΗ is (pick one) AS is (pick one) ΔΗ is (pick one) B This reaction is spontaneous except above 94. °C. AS is (pick one) This reaction is always spontaneous, but ΔΗ is (pick one) C proceeds slower at temperatures below −14. °C. AS is (pick one) Х 00. 18 Ar 무ㅎ B 1 1arrow_forward
- Draw the product of the reaction shown below. Ignore inorganic byproducts. + H CH3CH2OH HCI Drawingarrow_forwardplease explain this in simple termsarrow_forwardK Most Reactive Na (3 pts) Can the metal activity series (shown on the right) or a standard reduction potential table explain why potassium metal can be prepared from the reaction of molten KCI and Na metal but sodium metal is not prepared from the reaction of molten NaCl and K metal? Show how (not). Ca Mg Al с Zn Fe Sn Pb H Cu Ag Au Least Reactivearrow_forward
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