Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN: 9781259696527
Author: J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher: McGraw-Hill Education
Bartleby Related Questions Icon

Related questions

Q: the advantages of using Cyclic Olefin Copolymer (COC) as sustainable syringes in medince
A: Asked; Advantages of using Cyclic Olefin Copolymer (COC) as sustainable syringes in medicine are as…
Q: For type of mixture is osmosis well suited?
A: The mixtures for which osmosis process is suitable is to be mentioned.
Q: Name different types of lubricating agents? Briefly explain each of them? Please answer at your own…
A: The objective of this question is to identify and explain the different types of lubricating agents…
Q: How can you remove particulates in flue gas (give 2 examples each for dry and wet methods)?
A: To describe Methods of removal of particulates in flue gas ( 2 examples each of dry and wet methods)…
Q: Explain the industrial applications and recent trends of reactive distillation
A: Distillation is a separation operation in which the high volatile component is separated from the…
Q: What are the advantages of crystallization relative to filtration or adsorption for bioproduct…
A: The advantages of crystallization relative to filtration or adsorption for bio-product purification…
Q: Compare Thermogenic, Biogenic & Abiogenic formation of natural gas
A:
Q: What are the two main methods used to cause crystallization from an aqueous solution? Which is more…
A: The two main methods used to cause crystallization from an aqueous solution are: Gradual Cooling…
Q: Solvent extraction is essential for separation in the chemical industry, briefly describe four…
A: The applications of solvent extraction in the chemical industry are to be mentioned.
Q: Why is extraction a useful technique in organic chemistry? When could extraction not be used to…
A: It is to be mentioned why extraction is a useful technique in organic chemistry along with the…
Q: What are the two reasons for conducting reactive distillation?
A: The reasons for conducting the reactive distillation are to be mentioned.
Q: Describe about MORTON SALT?
A: Morton salt is a type of table salt which do not forms clumps together. The salt contains magnesium…
Question

Experiment : Purification of Benzoic Acid by recrystallization process .

Explain the result that obtain. 

A) Recrystalization of benzoic acid 1. Weigh a 5.00 g of impure benzoic acid sample into a 250 mL Erlenmeyer flask. 2. Observe and record the appearance (color, shape) of the sample. 3. Determine the melting point of the impure benzoic acid. 4. Add 75 mL of distilled water with small amount of activated carbon into the 250 mL Erlenmeyer flask. 5. Heat the Erlenmeyer flask on hot plate or Bunsen burner until the water boils. 6. Continue the heating process for another 2-3 minutes until the sample dissolves. In the meantime, boils a 20 mL of distilled water in a beaker and prepare the filter paper. 7. Filter the solution in the Erlenmeyer flask into an empty Erlenmeyer flask and rinse the filter paper with the boiled water in the beaker (Figure 2) 8. Set aside the flask to cool to room temperature slowly for crystallization. 9. After crystallization is complete at room temperature, cool the flask in an ice bath for a few minutes. 10. Isolate the resulting crystals by vacuum filtration on a Buchner funnel and wash with a small amount of chilled water (Figure 3). 11. Dry them on a sheet of filter paper before drying. 12. Describe the crystal of benzoic acid (color, shape). 13. Determine the melting point of the crystals.
expand button
Transcribed Image Text:A) Recrystalization of benzoic acid 1. Weigh a 5.00 g of impure benzoic acid sample into a 250 mL Erlenmeyer flask. 2. Observe and record the appearance (color, shape) of the sample. 3. Determine the melting point of the impure benzoic acid. 4. Add 75 mL of distilled water with small amount of activated carbon into the 250 mL Erlenmeyer flask. 5. Heat the Erlenmeyer flask on hot plate or Bunsen burner until the water boils. 6. Continue the heating process for another 2-3 minutes until the sample dissolves. In the meantime, boils a 20 mL of distilled water in a beaker and prepare the filter paper. 7. Filter the solution in the Erlenmeyer flask into an empty Erlenmeyer flask and rinse the filter paper with the boiled water in the beaker (Figure 2) 8. Set aside the flask to cool to room temperature slowly for crystallization. 9. After crystallization is complete at room temperature, cool the flask in an ice bath for a few minutes. 10. Isolate the resulting crystals by vacuum filtration on a Buchner funnel and wash with a small amount of chilled water (Figure 3). 11. Dry them on a sheet of filter paper before drying. 12. Describe the crystal of benzoic acid (color, shape). 13. Determine the melting point of the crystals.
Mass of impure benzoic acid (g) 5.00 g Аppearance: Color of impure benzoic acid Shape of impure benzoic acid Melting point range (°C) of impure benzoic acid Mass of recrystallized benzoic acid (g) Аppearance: Color of recrystallized benzoic acid Shape of recrystallized benzoic acid Melting point range (°C) of recrystallized benzoic acid White Powder 122 – 128°C 3.22 g White Crystalline solid 121 – 122°C
expand button
Transcribed Image Text:Mass of impure benzoic acid (g) 5.00 g Аppearance: Color of impure benzoic acid Shape of impure benzoic acid Melting point range (°C) of impure benzoic acid Mass of recrystallized benzoic acid (g) Аppearance: Color of recrystallized benzoic acid Shape of recrystallized benzoic acid Melting point range (°C) of recrystallized benzoic acid White Powder 122 – 128°C 3.22 g White Crystalline solid 121 – 122°C
Expert Solution
Check Mark
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
See solutionCheck out a sample Q&A here
Step 1
VIEW
Step 2
VIEW
bartleby

Step by stepSolved in 2 steps

See solution
Check out a sample Q&A here
Blurred answer
Knowledge Booster
Background pattern image
Chemical Engineering
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemical-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Text book image
Introduction to Chemical Engineering Thermodynami...
Chemical Engineering
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:McGraw-Hill Education
Text book image
Elementary Principles of Chemical Processes, Bind...
Chemical Engineering
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY
Text book image
Elements of Chemical Reaction Engineering (5th Ed...
Chemical Engineering
ISBN:9780133887518
Author:H. Scott Fogler
Publisher:Prentice Hall
Text book image
Process Dynamics and Control, 4e
Chemical Engineering
ISBN:9781119285915
Author:Seborg
Publisher:WILEY
Text book image
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:9781285061238
Author:Lokensgard, Erik
Publisher:Delmar Cengage Learning
Text book image
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:9780072848236
Author:Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:McGraw-Hill Companies, The
SEE MORE TEXTBOOKS