Interpretation:
The reason for no crystallization of the sulfanilamide in the give experimental procedure needs to be explained.
Concept Introduction:
Crystallization is explained as a procedure by which formation of crystal or solid takes place by precipitating them from the solution. It takes place by either supercooling the solution liquid or by supersaturated solvent.
Answer to Problem 1Q
Crystallization of sulfanilamide did not occur because of the proper ratio of solute and solvent is not taken in dissolving.
Explanation of Solution
Given Information:
10 mL volume of 95% ethyl alcohol is added to impure sulfanilamide of mass 0.10 g. After dissolving the solid, solution is cooled to room temperature and placed on ice-water bath for crystallization.
Sulfanilamide contains both polar sulfonamide,
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Chapter 2 Solutions
EBK A SMALL SCALE APPROACH TO ORGANIC L
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- A student determines the molar mass of acetone by the method used in this experiment. She found that the equilibrium temperature of a mixture of ice and water was 0.5 C on her thermometer. When she added 10.5 g of her sample to the mixture, the temperature fell to -3.7 C. She then poured off the solution through a screen into a beaker. The mass of the solution was 86.4 g. How much acetone was in the decanted solution?arrow_forwardFor the reaction A(g) + 7B(g) D C(g) + 4D(g), if Kp = 0.57 @ 105 K, what is the value of Kc at this temperature? Kp = Kc(RT)Δn R = 0.0821 Latm/molK Enter your answer as a standard number with 3 significant figures.arrow_forwardCould someone Please Help Me with this! No Plagirism Please! 3 · Provide at least 1 example of a reversible process (either physical or chemical). What has to be done to the process to make it reverse? Part 2—Copper (II) Chloride System - Cu(H2O)62+(aq) + 4Cl–(aq) + heat ⇆ CuCl42–(aq) + 6H2O(l) Blue Green Test Tube Procedure (Impacts) Predictions Observations (Result/Shift) 1 No tests (control) 2 Add 4M NaCl dropwise until change is observed *increases concentration of Cl─ in the system 3 Add 0.05M AgNO3 drop-wise until change is observed *decreases concentration of Cl─ in the system 4 Add H2O dropwise until change is observed *increases concentration of H2O in the system 5 Add acetone dropwise until change is observed *decreases concentration of H2O in the system 6 Place in hot water bath for 1-2 minutes *adds heat to the reaction system…arrow_forward
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- EBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENTChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning