![EBK ORGANIC CHEMISTRY](https://www.bartleby.com/isbn_cover_images/8220103151757/8220103151757_largeCoverImage.jpg)
EBK ORGANIC CHEMISTRY
6th Edition
ISBN: 8220103151757
Author: LOUDON
Publisher: MAC HIGHER
expand_more
expand_more
format_list_bulleted
Question
Chapter 8, Problem 8.19P
Interpretation Introduction
Interpretation:
The free energy of mixing of one mole of isotopically labeled hexane in one liter of ordinary hexane is to be calculated.
Concept introduction:
The Gibbs energy or Gibbs function is a
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
(b) The distribution ratio for X between n-hexane and water is 8.9. Calculate the concentration of X remaining in the aqueous phase after 50.0 mL of 0.200 M X is treated by extraction with the following quantities of n-hexane?
(i) one 40.0-mL portion; (ii) two 20.0-mL portions; (iii) four 10.0-mL portions. (iv) Comment on the results obtained from (b)(i) to (iii).
Q1. (a) In each of the following cases (I. to III.) identify which polymer in each pair
has the greatest Tg and then explain your selection in terms of molecular
structures. Assume that molecular weight differences are insignificant.
Note: PMV = pendant molar volume/ cm³/mol
Pair I
Section A
Answer ALL questions in this Section
Pair II
Pair III
Polymer 1
H₂
+²2² 0+.
Repeat unit A
ht
Polymer 3 (PMV=92.3)
3
Polymer 5 (PMV-60.1)
tyt
OC-CH₂
Polymer 2
| to-0²-0-0
H₂
+
-ot
Polymer 4 (143.9)
(b) Consider the following repeat units A and B, state which polymer is likely
to be amorphous and which is likely to be semi-crystalline then explain
why in terms of the structure of the repeating units.
to ***
Polymer 6 (PMV=70.3)
Repeat unit B
t
(b) An aqueous solution of propanone (acetone, 1) of total volume 0.120 mL was analysed by
quantitative 1H NMR, using the CH protons of (E)-butenedioic acid (fumaric acid, 2) to
provide an internal standard. A stock solution of 2 with concentration = 10.00 x 10-3 mol L-1
was prepared by dissolving pure solid 2 in deuterium oxide (D₂O). The solution of 1 was
mixed with a 0.400 mL aliquot of the stock solution of 2 and the 400 MHz 1H NMR
spectrum of the mixture was recorded (see Table 2 below).
H³C
||
CH3
1
HO₂C H
C=C
H CO₂H
2
SH (D2O, 400 MHz)
Multiplicity
Relative peak
area (integration)
Assignment
2.22
4.80
singlet
broad singlet
4.50
6.53
singlet
not determined
1.00
CH3 groups of 1
OH from HOD
CH groups of 2
Table 2. ¹H NMR data for the mixture of aqueous propanone (1) and the internal standard (2).
(i) Calculate the mass of propanone (1) contained in the original aqueous solution.
Chapter 8 Solutions
EBK ORGANIC CHEMISTRY
Ch. 8 - Prob. 8.1PCh. 8 - Prob. 8.2PCh. 8 - Prob. 8.3PCh. 8 - Prob. 8.4PCh. 8 - Prob. 8.5PCh. 8 - Prob. 8.6PCh. 8 - Prob. 8.7PCh. 8 - Prob. 8.8PCh. 8 - Prob. 8.9PCh. 8 - Prob. 8.10P
Ch. 8 - Prob. 8.11PCh. 8 - Prob. 8.12PCh. 8 - Prob. 8.13PCh. 8 - Prob. 8.14PCh. 8 - Prob. 8.15PCh. 8 - Prob. 8.16PCh. 8 - Prob. 8.17PCh. 8 - Prob. 8.18PCh. 8 - Prob. 8.19PCh. 8 - Prob. 8.20PCh. 8 - Prob. 8.21PCh. 8 - Prob. 8.22PCh. 8 - Prob. 8.23PCh. 8 - Prob. 8.24PCh. 8 - Prob. 8.25PCh. 8 - Prob. 8.26PCh. 8 - Prob. 8.27PCh. 8 - Prob. 8.28APCh. 8 - Prob. 8.29APCh. 8 - Prob. 8.30APCh. 8 - Prob. 8.31APCh. 8 - Prob. 8.32APCh. 8 - Prob. 8.33APCh. 8 - Prob. 8.34APCh. 8 - Prob. 8.35APCh. 8 - Prob. 8.36APCh. 8 - Prob. 8.37APCh. 8 - Prob. 8.38APCh. 8 - Prob. 8.39APCh. 8 - Prob. 8.40APCh. 8 - Prob. 8.41APCh. 8 - Prob. 8.42APCh. 8 - Prob. 8.43APCh. 8 - Prob. 8.44APCh. 8 - Prob. 8.45APCh. 8 - Prob. 8.46APCh. 8 - Prob. 8.47APCh. 8 - Prob. 8.48APCh. 8 - Prob. 8.49APCh. 8 - Prob. 8.50APCh. 8 - Prob. 8.51APCh. 8 - Prob. 8.52APCh. 8 - Prob. 8.53APCh. 8 - Prob. 8.54APCh. 8 - Prob. 8.55APCh. 8 - Prob. 8.56APCh. 8 - Prob. 8.57AP
Knowledge Booster
Similar questions
- A solution (1 dm3) of styrene (H2C=CHPh, 1 mol dm–3) in tetrahydrofuran was polymerised by addition of 5 cm3 of a 0.1 mol dm–3solution of n-butyllithium in tetrahydrofuran with rigorous exclusion of air and water at room temperature. Calculate the expected number average relative molar mass (Mn) of the final polymer at complete monomer conversion. Type your answer as a dimensionless number (no units), in normal (not scientific) notation, with no spaces but WITH comma separators for thousands.arrow_forwardCalculate unperturbed equilibrium radius of gyration, Rg, of polypropylene with molecular weight 84000, assuming C-C bond length 0.154 nm and characteristic ratio 5.9. Polypropylene has two C-C bonds per monomer, and molecular weight of the monomer m0=42.arrow_forwardWhat measures can be taken to decrease relative supersaturation during precipitation? Explain.arrow_forward
- The boiling points for the compounds are 118 °C and 35 °C respectively. The solubility for both compounds is the same (8g/100g water). Explain this observation for (i) boiling point disparity; (ii) solubility similarity H-bonds form in diethyl ether; n-butyl alcohol forms H-bonds in water H-bonds form in n-butyl alcohol; diethyl ether forms H-bonds in water H-bonds in n-butyl alcohol; Both compounds form H-bonds in water O Both compounds form H-bonds; Both compounds form H-bonds in waterarrow_forward13.43 Octane (C3H18) enters an engine and burns with air to give products with the dry molar analysis of CO2, 10.5%; CO, 5.8%; CH4, 0.9%; H2, 2.6%; 02, 0.3%; N2, 79.9%. Determine the equivalence ratio.arrow_forwardDiscuss the measurement and use of the terms pi and sigma in the study of quantitative structure-activity relationships (QSARs) for a range of substituted aromatic drug analogues.arrow_forward
- During the Contact process, sulphur dioxide, SO2 is oxidised to sulphur trioxide, SO3 in the presence of a suitable catalyst. (i) Name the catalyst used in the reaction. (ii) Deduce how the reaction would proceed without the addition of catalyst. (iii) State the reason why sulphur dioxide, SO2 is used in the manufacture of wood pulp.arrow_forwardWhen you are extracting an aqueous solution with an organic solvent, you are uncertain of which layer in the separatory funnel is aqueous, how would you quickly sort out the issue.arrow_forwardCalculate the Mg (OH) 2 content of MOM, 13.2 g of which was dissolved in 55.00 mL of 1.2642 NH2S04 producing a mixture that required 25.3 mL of 1.771 N NaH. Mg(OH)2 has MW=58.32 andfeq=2arrow_forward
- 4) 1.580 g soil sample was analyzed for its copper content. The soil sample was completely digested with HNO3-H2O2 mixture and diluted to 50.0 mL with distilled water. 2.0 mL of this solution was taken into a volumetric flask and diluted to 10.0 mL with distilled water. It was analyzed by FAAS system and its average absorbance was calculated as 0.2564. Calibration plot for copper is shown below. Absorbance 0,7 0,6 0,5 0,4 0,3 0,2 0,1 0 10 y = 0,0291x-0,0082 R² = 0,9993 15 Copper, mg/L 20 Calculate the percentage of copper in the soil sample as ppm. 25arrow_forwardCalculate the gravimetric factor of: FeO in Fe2O3 Bi2S3 in BaSO4 BaSO4 in (NH4)2SO4 Mn2O3 in Mn3O4 NOTE: Present complete solution and include the detailed computation of the molecular weight. Express your final answers up to FOUR decimal places.arrow_forwardDetermine the gravimetric analysis of the products of complete combustion of acetylene ?2 ?2 with 200 percent stoichiometric air.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Macroscale and Microscale Organic ExperimentsChemistryISBN:9781305577190Author:Kenneth L. Williamson, Katherine M. MastersPublisher:Brooks Cole
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305577190/9781305577190_smallCoverImage.gif)
Macroscale and Microscale Organic Experiments
Chemistry
ISBN:9781305577190
Author:Kenneth L. Williamson, Katherine M. Masters
Publisher:Brooks Cole