Homework Answers
Water is polar and exhibits hydrogen bonding. This is the strongest intermolcular force.Acteone is polar and has dipole-dipole intermolecular force of attraction between acetone molecules. Hydrogen bonding is strong intermolecular force than dipole -dipole . Hence water has higher boiling point than acetone
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Experiment #3-Distillation Lab 5) Describe the specifie roles of non-covalent bonding interactions on the bolling points...
Experiment Lab Questions: Distillation of Alcohol Reagents: (1) Ethanol (C2H5OH) [ MW = 46.07 g/m...
Experiment Lab Questions: Distillation of Alcohol Reagents: (1) Ethanol (C2H5OH) [ MW = 46.07 g/mol density = 0.789g/mL boiling point = 78.37 C ] (2) Red food dye (non-volatile) Questions: 1. What is the theoretical Yield 2. How can we improve the efficiency of this distilation experiment? 3. What is the reason for a sharp increase in temperature at one point? 4. What is the reason we can assume that distillation is completed when the temperature drops? 5. a. Discuss...
Organic Chemistry Lab Experiment 117-02 Distillation and Boiling Points- POST LAB WORKSHEET (5 pts) Consider the...
Organic Chemistry Lab Experiment 117-02 Distillation and Boiling Points- POST LAB WORKSHEET (5 pts) Consider the phase diagram below for miscible liquids 'A' and 'B 4. 120 110 100 90 80 70 0 mol% A 20 40 80 60 100 100 mol% B 60 80 40 20 a) What is the boiling point of pure 'A'? b) What is the boiling point of pure 'B'? c) What is the boiling point of an 50:50 mixture of 'A' and 'B'? d)...
Experiment #6 Ester Synthesis PRE-LAB ASSIGNMENT This pre-lab assignment is worth 5 points for this Experiment...
Experiment #6 Ester Synthesis PRE-LAB ASSIGNMENT This pre-lab assignment is worth 5 points for this Experiment and should be completed on a separate page and turned in at the beginning of lab. 1. Read the experiment carefully 2. Safety Considerations: Summarize O safety and health hazards for working with glacial acetic acid, butanoic acid and petroleum ether. 3. Procedure: Summarize the procedure using a bullet list. Assume you are summarizing the procedure to a fully qualified chemist, i.e. don't include...
Ionic & Covalent Virtual Lab Pre-Virtual Lab Questions: Answer these before going to the website to...
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I did an experiment where I synthesized 2-phenyl-2-propanol using the grignard reaction. please help me answer these lab questions Reagents Moles of Reagent 0.00142 moles (0.224 g)bromoben...
I did an experiment where I synthesized
2-phenyl-2-propanol using the grignard reaction. please help me
answer these lab questions
Reagents Moles of Reagent 0.00142 moles (0.224 g)bromobenzene 0.00712 mol (0.173 g) 2 mL of THF (n/a moles) tetrahydrofuran 0.00142 mol (0.083g, 0.11mL) acetone, HPLC grade, anh Reagent Name FW 157.75 24.31 n/a 58 Comments Mg powder grind before using must be anhydrous must be anhydrous Pre-Lab Assignment: 1. Determine the volume (mL) of bromobenzene needed for the experiment. Obtain the...
Chemistry 326 Laboratory Manual obowy zawabnya CH, HycoF OCH Pre-Lab Assignment: Complete BEFORE Lab! (5 pts)...
Chemistry 326 Laboratory Manual obowy zawabnya CH, HycoF OCH Pre-Lab Assignment: Complete BEFORE Lab! (5 pts) 1. Draw the ketones and aldehydes necessary to synthesize ALL compounds A-F via double Aldol condensation. 2. Determine the moles of acetone and the moles of benzaldehyde used in the sample procedure below. NOTE: you will need to find the density of acetone and benzaldehyde to do this exercise. 3. Using the same number of moles you calculated above, determine the VOLUME of each...
Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
MSISTRY 203-204 Grganic Chemistry Lab Manual 3 4 EXPERIMENT #9 The Preparation of t Butyl Chloride A tertiary carbonium ion is more rapidly formed than a secondary or primary carbonium ion. Onc...
MSISTRY 203-204 Grganic Chemistry Lab Manual 3 4 EXPERIMENT #9 The Preparation of t Butyl Chloride A tertiary carbonium ion is more rapidly formed than a secondary or primary carbonium ion. Once formed, a tertiary carbonium ion is stabilized by charge dispersal to a greater extent than a secondary or primary carbonium ion. It therefore has a longer life expectancy. Primary carbonium ions, protons, may exist in solution only in solvated form have any free existence, they dehydration reaction and...
The following questions are from an experiment titled Friedel-Crafts Alkylation for Organic Chemistry II Lab. There...
The following questions are from an experiment titled
Friedel-Crafts Alkylation for Organic Chemistry II Lab. There are
pictures attached of the lab manual.
2) Is this method a good route for the preparation of
p-sec-butyltoulene? Give reasons for your answer.
3) Why do you use a large excess of toulene. What are its
functions?
4) What is the purpose for adding the hydrochloric acid to the
water in the separatory funnel in step 5? Hint: If no acid is
added,...
i am needing help with question 4 and 5. anything else helps Name Experiment 7 Calorimetry Postlab: Questions 25 points possible Section (day&time) Instructor Due date Answer the following qu...
i am needing help with question 4 and 5. anything else
helps
Name Experiment 7 Calorimetry Postlab: Questions 25 points possible Section (day&time) Instructor Due date Answer the following questions using complete sentences and support your answers with swers calculations, if desired. Attach additional pages as necessary. Handwritten or typed an are acceptable.(5 pts per question) 1. If som e of your hot metal remained in the test tube when it was transferred to the eter, would its calculated molar...
Organic Chemistry Lab Experiment 117-02 Distillation and Boiling Points- POST LAB WORKSHEET (5 pts) Consider the phase diagram below for miscible liquids 'A' and 'B 4. 120 110 100 90 80 70 0 mol% A 20 40 80 60 100 100 mol% B 60 80 40 20 a) What is the boiling point of pure 'A'? b) What is the boiling point of pure 'B'? c) What is the boiling point of an 50:50 mixture of 'A' and 'B'? d)...
Experiment #6 Ester Synthesis PRE-LAB ASSIGNMENT This pre-lab assignment is worth 5 points for this Experiment and should be completed on a separate page and turned in at the beginning of lab. 1. Read the experiment carefully 2. Safety Considerations: Summarize O safety and health hazards for working with glacial acetic acid, butanoic acid and petroleum ether. 3. Procedure: Summarize the procedure using a bullet list. Assume you are summarizing the procedure to a fully qualified chemist, i.e. don't include...
Ionic & Covalent Virtual Lab Pre-Virtual Lab Questions: Answer these before going to the website to begin the virtual lab. 1. Where are metal atoms located on the periodic table? Where are non metal atoms located on the periodic table? 2. What subatomic particles) participate in chemical bonding? 3. In your own words, define valence electrons. 4. How can you determine the number of valence electrons in an atom using the periodic table? 5. Draw a Lewis Dot Structure for...
I did an experiment where I synthesized
2-phenyl-2-propanol using the grignard reaction. please help me
answer these lab questions
Reagents Moles of Reagent 0.00142 moles (0.224 g)bromobenzene 0.00712 mol (0.173 g) 2 mL of THF (n/a moles) tetrahydrofuran 0.00142 mol (0.083g, 0.11mL) acetone, HPLC grade, anh Reagent Name FW 157.75 24.31 n/a 58 Comments Mg powder grind before using must be anhydrous must be anhydrous Pre-Lab Assignment: 1. Determine the volume (mL) of bromobenzene needed for the experiment. Obtain the...
Chemistry 326 Laboratory Manual obowy zawabnya CH, HycoF OCH Pre-Lab Assignment: Complete BEFORE Lab! (5 pts) 1. Draw the ketones and aldehydes necessary to synthesize ALL compounds A-F via double Aldol condensation. 2. Determine the moles of acetone and the moles of benzaldehyde used in the sample procedure below. NOTE: you will need to find the density of acetone and benzaldehyde to do this exercise. 3. Using the same number of moles you calculated above, determine the VOLUME of each...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
MSISTRY 203-204 Grganic Chemistry Lab Manual 3 4 EXPERIMENT #9 The Preparation of t Butyl Chloride A tertiary carbonium ion is more rapidly formed than a secondary or primary carbonium ion. Once formed, a tertiary carbonium ion is stabilized by charge dispersal to a greater extent than a secondary or primary carbonium ion. It therefore has a longer life expectancy. Primary carbonium ions, protons, may exist in solution only in solvated form have any free existence, they dehydration reaction and...
The following questions are from an experiment titled
Friedel-Crafts Alkylation for Organic Chemistry II Lab. There are
pictures attached of the lab manual.
2) Is this method a good route for the preparation of
p-sec-butyltoulene? Give reasons for your answer.
3) Why do you use a large excess of toulene. What are its
functions?
4) What is the purpose for adding the hydrochloric acid to the
water in the separatory funnel in step 5? Hint: If no acid is
added,...
i am needing help with question 4 and 5. anything else
helps
Name Experiment 7 Calorimetry Postlab: Questions 25 points possible Section (day&time) Instructor Due date Answer the following questions using complete sentences and support your answers with swers calculations, if desired. Attach additional pages as necessary. Handwritten or typed an are acceptable.(5 pts per question) 1. If som e of your hot metal remained in the test tube when it was transferred to the eter, would its calculated molar...
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