4. A __________________ number of theoretical plates increase the efficiency of ________________ distillation. (lower or...
4. A __________________ number of theoretical plates increase the efficiency of ________________ distillation.
(lower or higher) (simple or fractional)
a) lower, simple
b) lower,
fractional
c) higher,
simple
d) higher, fractional
5. True or False? A polar compound has a higher boiling point than a non-polar compound of similar molecular weight.
A. True B. False
Homework Answers
4. A higher number of theoretical plates increase the efficiency of fractional distillation.
Ans: d) higher, fractional
5. A polar compound has a higher boiling point than a non-polar compound of similar molecular weight.
Ans: A. True
Add Answer to:
4. A __________________ number of theoretical plates
increase the efficiency of ________________ distillation.
(lower or...
What are the applications of simple and fractional distillation A)Simple distillation is used when a substance...
What are the applications of simple and fractional distillation A)Simple distillation is used when a substance is less than 10% impure while fractional distillation is used to purify a compound when the impurities are greater than 10% of the mixture. B) Simple distillation is preferred when a higher percent recovery of pure material is desired. C) Fractional distillation is preferred when a higher percent recovery of pure material is desired. D) Simple distillation must be done if the compound has...
Which property or properties would be the most useful in characterizing an organic compound that a...
Which property or properties would be the most useful in characterizing an organic compound that a solid at room temperature. melting point 1L refractive index IL boiling pointIV. color is a solid at room a. b. II and IV f. II and II1 js a lvguid a rooeriy or propertis would be the most usctaul in characteriving an organic compound that I. melting point I. refractive index III. boiling pointIV. color a. b. III and IV c.? f. II and...
Why is HETP important? Why not just use theoretical plates to measure the efficiency of a fractional distillation head?
Why is HETP important? Why not just use theoretical plates to measure the efficiency of a fractional distillation head?
1. A student carried out a simple distillation on a compound known to boil at 124°C...
1. A student carried out a simple distillation on a compound known to boil at 124°C and reported an observed boiling point of 116°-117°C. TLC comparison of the product showed that the compound was pure, and a calibration of the thermometer indicated that it was accurate. What procedural error might the student have made in setting up the distillation apparatus? 2. Which method is better for purifying a mixture of two liquids that boil at nearly the same temperature: simple...
(b) Estimate the boiling points (b.p.) of compound C (lower boiling) and compound D (higher...
(b) Estimate the boiling points
(b.p.) of compound C (lower boiling) and compound D (higher
boiling)?
Compound C b.p.
°C Compound D b.p.
°C
A mixture of two compounds was distilled by simple and fractional distillation, with compound C being the lower boiling compound and compound D being the higher boiling compound. Graphs of temperature versus volume of distillate collected are rovided for Distillation 1 and Distillation 2 80 75 O 70 2 65 60 2 55...
Distillation 11 4. The organic liaud in Sicam distillatior vaporites at: a) Lower temperature than its...
Distillation 11 4. The organic liaud in Sicam distillatior vaporites at: a) Lower temperature than its boiling point b) Higher temperature than its boiling point c) At its boiling point d) None of the mentioned 2. In steam distillation, the liquid boils when th allation, the liquid boils when the sum of the organic liquid vapor pressure and the water vapor pressure is: a) Greater than atmospheric pressure b) Lesser than atmospheric pressure Equals to atmospheric pressure d) None of...
I started to write about the crystalline latice.. but i think that this is not completley why this phenomenon would oc...
I started to write about the crystalline latice.. but i think
that this is not completley why this phenomenon would occur.
The
question states:
5. If the melting point of an organic acid is known, explain
if the melting point will be higher or lower for:
a) the sodium salt of the organic acid
b) a non-polar hydrogen compound of similar molecular
weight
meting point range uould be arund 5. If the melting point of an organic acid is knovti,...
questions: 2,3, 4 and 5 please 2. How would the graph of temperature versus volume distilled...
questions: 2,3, 4 and 5 please
2. How would the graph of temperature versus volume distilled appear for a perfect separation of methanol (bp 65.4°C) and toluene (bp 110°C) using an efficient frac- tionating column? 3. The efficiency of a fractional distillation is given as the number of cycles or theo- retical plates. Traversing through steps A - D in Figure 1H-1 is equivalent to hav- ing completed two vaporization-condensation cycles or two theoretical plates. Predict the temperature of the...
#9. if you were trying to separate two compounds with very close boiling points how could...
#9. if you were trying to separate two compounds with very close
boiling points how could you increase the efficiency of a
fractional distillation in order to separate those compounds?
thank you!!
b. Which component should still off ist? How does the boiling point of that liquid compare to comperare mesurements at the beginning of both simple and fractional distillation? d What does this comparison tell you about the composition of the station from both simple and tractional distillation? e....
2. What effect does each of the following have on a simple distillation and/or the boiling...
2. What effect does each of the following have on a simple distillation and/or the boiling point that one determines in the laboratory? a. lower atmospheric pressure b. higher atmospheric pressure c. heating the distillation vessel too rapidly d. not adding a boiling stone or stirrer to the distillation vessel
Which property or properties would be the most useful in characterizing an organic compound that a solid at room temperature. melting point 1L refractive index IL boiling pointIV. color is a solid at room a. b. II and IV f. II and II1 js a lvguid a rooeriy or propertis would be the most usctaul in characteriving an organic compound that I. melting point I. refractive index III. boiling pointIV. color a. b. III and IV c.? f. II and...
1. A student carried out a simple distillation on a compound known to boil at 124°C and reported an observed boiling point of 116°-117°C. TLC comparison of the product showed that the compound was pure, and a calibration of the thermometer indicated that it was accurate. What procedural error might the student have made in setting up the distillation apparatus? 2. Which method is better for purifying a mixture of two liquids that boil at nearly the same temperature: simple...
(b) Estimate the boiling points
(b.p.) of compound C (lower boiling) and compound D (higher
boiling)?
Compound C b.p.
°C Compound D b.p.
°C
A mixture of two compounds was distilled by simple and fractional distillation, with compound C being the lower boiling compound and compound D being the higher boiling compound. Graphs of temperature versus volume of distillate collected are rovided for Distillation 1 and Distillation 2 80 75 O 70 2 65 60 2 55...
Distillation 11 4. The organic liaud in Sicam distillatior vaporites at: a) Lower temperature than its boiling point b) Higher temperature than its boiling point c) At its boiling point d) None of the mentioned 2. In steam distillation, the liquid boils when th allation, the liquid boils when the sum of the organic liquid vapor pressure and the water vapor pressure is: a) Greater than atmospheric pressure b) Lesser than atmospheric pressure Equals to atmospheric pressure d) None of...
I started to write about the crystalline latice.. but i think
that this is not completley why this phenomenon would occur.
The
question states:
5. If the melting point of an organic acid is known, explain
if the melting point will be higher or lower for:
a) the sodium salt of the organic acid
b) a non-polar hydrogen compound of similar molecular
weight
meting point range uould be arund 5. If the melting point of an organic acid is knovti,...
questions: 2,3, 4 and 5 please
2. How would the graph of temperature versus volume distilled appear for a perfect separation of methanol (bp 65.4°C) and toluene (bp 110°C) using an efficient frac- tionating column? 3. The efficiency of a fractional distillation is given as the number of cycles or theo- retical plates. Traversing through steps A - D in Figure 1H-1 is equivalent to hav- ing completed two vaporization-condensation cycles or two theoretical plates. Predict the temperature of the...
#9. if you were trying to separate two compounds with very close
boiling points how could you increase the efficiency of a
fractional distillation in order to separate those compounds?
thank you!!
b. Which component should still off ist? How does the boiling point of that liquid compare to comperare mesurements at the beginning of both simple and fractional distillation? d What does this comparison tell you about the composition of the station from both simple and tractional distillation? e....
2. What effect does each of the following have on a simple distillation and/or the boiling point that one determines in the laboratory? a. lower atmospheric pressure b. higher atmospheric pressure c. heating the distillation vessel too rapidly d. not adding a boiling stone or stirrer to the distillation vessel
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