Explain how you can crudely estimate the relative values for the melting points of two different ...
Explain how you can crudely estimate the relative values for the melting points of two different organic compounds? Show the structures of two organic compounds and explain your reasoning. Why can the estimate be rather inaccurate?
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Explain how you can crudely estimate the relative values for the melting points of two different ...
3. Based on your knowledge of melting points, would you expect the melting points of the...
3. Based on your knowledge of melting points, would you expect the melting points of the compounds isolated in this experiment to be generally higher, lower, or the same as the literature values? Explain your answer.
#2) You are given two similar looking white, organic crystalline solids and determine their melting points....
#2) You are given two similar looking white, organic crystalline solids and determine their melting points. You find one to be 156-158° C and the other to be 154-157° C. Explain how to determine whether the two substances are identical or different. Briefly describe how the results obtained would differ if the substances were identical or if they were different.
If you have two compounds that have the same melting point, using melting point determination, how...
If you have two compounds that have the same melting point, using melting point determination, how will you confirm whether the two compounds are the same or different?
of compounds and Mars To: Mening the Making SECTION DATE CHEOL/ M uring the Melting Points...
of compounds and Mars To: Mening the Making SECTION DATE CHEOL/ M uring the Melting Points of Command Mix Pre-Laboratory Assignment 1. Briefly identify or explain (a) two useful functions served by knowing the melting point of an organic compound (b) why a finely powdered sample should be used in a melting point measurement (c) why it is important to heat a sample slowly to obtain an accurate melting point. (d) two reasons why it is sometimes difficult to measure...
Powder (shor sten FUNNELS Fitering (long stem 63 Chapter 4 Melting Points, Boiling Points, and Refractive Indices Q...
Powder (shor sten FUNNELS Fitering (long stem 63 Chapter 4 Melting Points, Boiling Points, and Refractive Indices Questions 1. What effect would poor circulation of the melting point bath liquid have on the observed melting point? 2. What is the effect of an insoluble impurity, such as sodium sulfate, on the observed melting point of a compound? 3. Three test tubes, labeled A, B, and C, contain substances with approxi- mately the same melting points. How could you prove the...
PART B MELTING POINTS OF SOME ORGANIC SUBSTANCES Circle the pair of substances of which you measured the melting point...
PART B MELTING POINTS OF SOME ORGANIC SUBSTANCES Circle the pair of substances of which you measured the melting point range 7 2-naphthol (A) and naphthalene (B) benzophenone (A) and benzil (B Complete the following table: [6 marks] Hint Molecules containing only Cand H can be assumed to be non-polar Present in Present in А Stronger in which substance? Why? Intermolecular Force В (yes or no) (yes or no) London Dispersion Dipole-Dipole Hydrogen Bonding Which of the two substances that...
can you help with part b why isn't the product pure based on the melting point???...
can you help
with part b
why isn't the product pure based on the melting point???
for part c the experiment was
Separation of acid/base/neutral compounds using liquid- liquid
extraction of benzocaine-trans-cinnamic acid and biphenyl
what was the purpose of using Na2SO4
estion 6: 100mg of each Acid, Base and Neutral compounds were used. Assuming 70mg mzocaine, 66mg trans-cinnamic acid and 50mg of biphenyl were isolated. a. Calculate % recovery of benzocaine, trans-cinnamic acid and biphenyl respectively. (show your calculation,...
Plz quick help Materials science 4. Spts) Illustrations (A) and (B), below, show two different silicate...
Plz quick help
Materials science
4. Spts) Illustrations (A) and (B), below, show two different silicate structheir physical properties: the common name of the structures shown. Then compare and contrast the crystalline or amorphous? How do their melting points (Tm), glass compare. Explain WHY you expect these physical properties to r physical properties: Is each transition temperatures (T), ifany, be the way you have described.
why isnt the benzoic acid answer?꙼̈ melting points of Benzoic acid and Phenyl succinate are both...
why isnt the benzoic acid answer?꙼̈
melting points of Benzoic acid and Phenyl succinate are both
121 celsius in the chart. can you please explain?꙼̈
1. An unknown compound X is one of the four compounds listed in the following table. A mixture of X with benzoic acid melts at 89°C, a mixture of X with phenylsuccinate melts at 20°C, and a mixture of X with m-aminophenol melts at 102°C. What is the identity of X? Explain Chemnical mp. ("C)...
Question 14 The melting point of a pure compound is known to be 110-111°. Describe the...
Question 14 The melting point of a pure compound is known to be 110-111°. Describe the melting behavior expected if this compound is contaminated with 5% of an impurity. 90-96 111-113 90-91 110-111 5 pts Question 15 You and your lab partner take melting points of the same sample. You observe a melting point of 101-107°C, while your partner observes a value of 110-112°C. Explain how you can get two different values with exactly the same sample. One of the...
#2) You are given two similar looking white, organic crystalline solids and determine their melting points. You find one to be 156-158° C and the other to be 154-157° C. Explain how to determine whether the two substances are identical or different. Briefly describe how the results obtained would differ if the substances were identical or if they were different.
of compounds and Mars To: Mening the Making SECTION DATE CHEOL/ M uring the Melting Points of Command Mix Pre-Laboratory Assignment 1. Briefly identify or explain (a) two useful functions served by knowing the melting point of an organic compound (b) why a finely powdered sample should be used in a melting point measurement (c) why it is important to heat a sample slowly to obtain an accurate melting point. (d) two reasons why it is sometimes difficult to measure...
Powder (shor sten FUNNELS Fitering (long stem 63 Chapter 4 Melting Points, Boiling Points, and Refractive Indices Questions 1. What effect would poor circulation of the melting point bath liquid have on the observed melting point? 2. What is the effect of an insoluble impurity, such as sodium sulfate, on the observed melting point of a compound? 3. Three test tubes, labeled A, B, and C, contain substances with approxi- mately the same melting points. How could you prove the...
PART B MELTING POINTS OF SOME ORGANIC SUBSTANCES Circle the pair of substances of which you measured the melting point range 7 2-naphthol (A) and naphthalene (B) benzophenone (A) and benzil (B Complete the following table: [6 marks] Hint Molecules containing only Cand H can be assumed to be non-polar Present in Present in А Stronger in which substance? Why? Intermolecular Force В (yes or no) (yes or no) London Dispersion Dipole-Dipole Hydrogen Bonding Which of the two substances that...
can you help
with part b
why isn't the product pure based on the melting point???
for part c the experiment was
Separation of acid/base/neutral compounds using liquid- liquid
extraction of benzocaine-trans-cinnamic acid and biphenyl
what was the purpose of using Na2SO4
estion 6: 100mg of each Acid, Base and Neutral compounds were used. Assuming 70mg mzocaine, 66mg trans-cinnamic acid and 50mg of biphenyl were isolated. a. Calculate % recovery of benzocaine, trans-cinnamic acid and biphenyl respectively. (show your calculation,...
Plz quick help
Materials science
4. Spts) Illustrations (A) and (B), below, show two different silicate structheir physical properties: the common name of the structures shown. Then compare and contrast the crystalline or amorphous? How do their melting points (Tm), glass compare. Explain WHY you expect these physical properties to r physical properties: Is each transition temperatures (T), ifany, be the way you have described.
why isnt the benzoic acid answer?꙼̈
melting points of Benzoic acid and Phenyl succinate are both
121 celsius in the chart. can you please explain?꙼̈
1. An unknown compound X is one of the four compounds listed in the following table. A mixture of X with benzoic acid melts at 89°C, a mixture of X with phenylsuccinate melts at 20°C, and a mixture of X with m-aminophenol melts at 102°C. What is the identity of X? Explain Chemnical mp. ("C)...
Question 14 The melting point of a pure compound is known to be 110-111°. Describe the melting behavior expected if this compound is contaminated with 5% of an impurity. 90-96 111-113 90-91 110-111 5 pts Question 15 You and your lab partner take melting points of the same sample. You observe a melting point of 101-107°C, while your partner observes a value of 110-112°C. Explain how you can get two different values with exactly the same sample. One of the...
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