Macroscale and Microscale Organic Experiments
7th Edition
ISBN: 9781305577190
Author: Kenneth L. Williamson, Katherine M. Masters
Publisher: Brooks Cole
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Chapter 6, Problem 6Q
A mixture of toluene
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Chapter 6 Solutions
Macroscale and Microscale Organic Experiments
Ch. 6 - Assign the peaks in the 1H NMR spectrum of eugenol...Ch. 6 - A mixture of ethyl iodide (C2H5I,bp72.3C) and...Ch. 6 - Prob. 3QCh. 6 - Prob. 4QCh. 6 - Prob. 5QCh. 6 - A mixture of toluene (bp110.8C) and water is steam...Ch. 6 - Did sublimation aid in the purification of the...Ch. 6 - Prob. 8QCh. 6 - Prob. 9QCh. 6 - Prob. 10Q
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- Suppose you are presented with a clear solution of sodium thiosulfate, Na2S2O3. How could you determine whether the solution is unsaturated, saturated, or supersaturated?arrow_forwardConsider this information regarding two compounds. Thallium azide: yellow crystalline solid; melting point = 330 C; slightly soluble in water, more soluble in hot water; insoluble in ethanol or diethyl ether. Camphene: colorless, cubic crystals; melting point = 51 C; boiling point = 159 C; insoluble in water; moderately soluble in ethanol; soluble in diethyl ether. (a) Is camphene an ionic or molecular compound? Explain your answer. (b) Is thallium azide an ionic or molecular compound? Explain your answer.arrow_forwardBenzyl alcohol (bp 205°C) was selected by a student to crystallize uorenol (mp 153–154°C) because the solubility characteristics of this solvent are appropriate. However, this solvent is not a good choice. Explain.arrow_forward
- Calculate the molecular weight of sulfur if 35.5 grams of sulfur dissolve in 100.0 grams of CS2 to produce a solution that has a boiling point of 49.48 oC. Explain your answer.arrow_forwardState a reason of the following statements: (i) Soap do not work in hard water. (ii) The use of the sweetener aspartame is limited to cold foods and drinks.arrow_forwardThe solubility of acetanilide in hot water (5.5 g/100 ml at 100 o C) is not very great, and its solubility in cold water (0.53 g/ 100 ml at 0 o C) is significant. What would be the maximum theoretical percent recovery from the crystallization of 5.0 g of acetanilide from 100 ml water. (assuming the solution is chilled at 0 o C).arrow_forward
- 2. a) How could you calculate a water pressure above a 1M NaCl solution (salt in water)? Could you explain what the meaning of your formula? What would be the boiling temperature of such solution at a normal external pressure? b) How could you separate components by distillation? Explain on a phase diagram.arrow_forwardExplain and sketch the Born-Mayer equation to determine the crystallization energy of NaCl and MgCl2arrow_forwardA small storage cabinet 2m x 2m x 3m contains an open 208 L drum of aqueous TEC at a concentration of 120 mg/L. The cabinet has been closed for over 2 months, so equilibrium conditions have been established. What is the TCE concentration in the water and vapor phases at this time? Assume that the temperature is 25 oC, R = 8.2 x 10-5 m3•atm/mole/K, and H = 0.0091 m3•atm/molearrow_forward
- You synthesized a sample of tetramethylammonium triiodide and managed to measure the melting point. However, the melting point deviates from the ideal melting point for tetramethyl-ammonium tri-iodide, which is 117 degrees C. This suggests that your sample may be impure. Unfortunately, you ran out of time and were unable to carry out the gravimetry. Your demonstrators agreed to help you out, but instead of using gravimetry, they carried out the elemental analysis of your product. The sample contains C - 9.27 %, H -2.33 %, and N - 2.70 %. How many iodine atoms does your sample have according to this analysis?arrow_forwardMinerals that generally form from the evaporation of a water-based solution belong to which chemical group?arrow_forwardSuggest an explanation for the observations that propanol, C3H7OH, is miscible with water and that tricarbon octahydride, C3H8, is not soluble in water.arrow_forward
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Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY