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A student was able to separate the three components of a mixture via liquid chromatography. She...
The species mass densities of a three?component (A, B, and C) liquid mixture are: acetone, A=...
The species mass densities of a three?component (A, B, and C)
liquid mixture are: acetone,
A= 326.4, kg/m3, acetic acid,
B = 326.4 kg/m3, and ethanol,
C = 217.6 kg/m3.
Determine the following for this mixture:
1. The mass fraction of each species in the mixture.
2. The mole fraction of each species in the mixture.
3. The mass of each component required to make one cubic meter
of mixture.
2. Paper chromatography was used to separate a mixture. Five chromatograms were prepared and each was...
2. Paper chromatography was used to separate a mixture. Five chromatograms were prepared and each was eluted with a different mobile phase. The five mobile phases used were mixtures with different percentages of water and isopropanol. The following Re values were obtained. Rr Values 25% Isopropanol Isopropanol Isopropanol Isopropanol 50% 75% 100% Component Water 1.00 0.99 0.98 0.97 Blue Red Green Orange 0.96 0.91 0.61 0.32 0.91 0.72 0.41 0.16 0.85 0.52 0.41 0.10 0.7 0.31 0.42 0.01 Prepare a...
Explain the various factors responsible for separation of components of a mixture in chromatography. Explain about...
Explain the various factors responsible for separation of components of a mixture in chromatography. Explain about the classification of chromatography with few examples. Draw a block diagram of gas chromatograph and explain the function of each component Write a note on the micro syringe use to inject the liquid sample into gas chromatograph. Write a note on principle of working of Gas chromatograph. (How to prepare GC for analysis) Write a note on analysis of chromatogram (Types the method of...
please i'd appreciate your assistance thank uou Two compounds are to be separated via column chromatography...
please i'd appreciate your assistance thank uou
Two compounds are to be separated via column chromatography using alumina as a solid phase, One is very polar, and the other is very non-polar. Which compound will elute first from the column? (0.5 pts) Determine the Ry for the two spots on the TLC plate below. Show all of your calculations. (2 pts) 5. A student mixed 0.60 g of ferrocene (molar mass = 186.04 g/mol) with 2.0 mL of acetic anhydride...
A mixture contains KClO3 and KCl. When the mixture is heated, only the KClO3 decomposes via...
A mixture contains KClO3 and KCl. When the mixture is heated, only the KClO3 decomposes via the following reaction: 2KClO3 (s) → 3O2 (g) + 2KCl (s) In an experiment to determine the percent KClO3 in a KClO3/KCl mixture, the mixture was heated in a crucible several times in order to bring it to constant mass. The following experimental data was obtained. Before Heating Mass empty crucible + lid = 21.77 g Mass crucible + lid+ KClO3/KCl mixture = 26.16...
A mixture contains KClO3 and KCl. When the mixture is heated, only the KClO3 decomposes via...
A mixture contains KClO3 and KCl. When the mixture is heated, only the KClO3 decomposes via the following reaction: 2KClO3 (s) → 3O2 (g) + 2KCl (s) In an experiment to determine the percent KClO3 in a KClO3/KCl mixture, the mixture was heated in a crucible several times in order to bring it to constant mass. The following experimental data was obtained. Before Heating Mass empty crucible + lid = 21.84 g Mass crucible + lid+ KClO3/KCl mixture = 26.19...
A student was asked to determine the percentage of each component in a mixture of sodium...
A student was asked to determine the percentage of each component in a mixture of sodium nitrate (NaNO3) and calcium carbonate (CaCO3). The mass of the sample used was 2.96 g. The student extracted NaNO3 from the mixture with water and separated the insoluble CaCO3 from the solution by filtration. After evaporating the filtrate, the student recovered and dried the NaNO3, and found that it weighted 0.49 g. The student dried the insoluble residue of CaCO3 and found that it...
Question 2,3,4 please. ESTIONS: 1. Many students do not recover 100% of the original mixture. Describe...
Question 2,3,4 please.
ESTIONS: 1. Many students do not recover 100% of the original mixture. Describe at least two possible problems that could cause less than 100% recovery of the mixture. 2. A student received a mixture that actually contained 50.0% salt and 50.0% sand. At the end of the experiment, this student calculated that his sample was composed of 45.2% salt and 54.8% sand. What might he have done (or not done correctly) during the experiment to cause this...
5. Would a liquid with high vapor pressure be more likely to be in liquid stationary...
5. Would a liquid with high vapor pressure be more likely to be in liquid stationary phase or gas phase? Why? likely to be 6. When analyzing a GC spectra, you must mark a) your (b) height, and width at (e GC trace. Show your calculations either in your final report or (d) and width at (c), on the sample GC spectra below. Report the retention time of each peak (in minutes), the identity of each component in the mixture,...
Are you able to use acid base extraction to solve separate these? Suppose you steam distilled...
Are you able to use acid base extraction to solve separate
these?
Suppose you steam distilled thyme, and found that the resulting oil possessed promising antibiotic activity. To determine which chemical is the active component, you need to separate the mixture. If the major components are the chemicals shown below, what technique could you use to purify 1 g of the oil and obtain a pure sample of each compound? Explain why your chosen technique would be successful. 2. 3...
The species mass densities of a three?component (A, B, and C)
liquid mixture are: acetone,
A= 326.4, kg/m3, acetic acid,
B = 326.4 kg/m3, and ethanol,
C = 217.6 kg/m3.
Determine the following for this mixture:
1. The mass fraction of each species in the mixture.
2. The mole fraction of each species in the mixture.
3. The mass of each component required to make one cubic meter
of mixture.
2. Paper chromatography was used to separate a mixture. Five chromatograms were prepared and each was eluted with a different mobile phase. The five mobile phases used were mixtures with different percentages of water and isopropanol. The following Re values were obtained. Rr Values 25% Isopropanol Isopropanol Isopropanol Isopropanol 50% 75% 100% Component Water 1.00 0.99 0.98 0.97 Blue Red Green Orange 0.96 0.91 0.61 0.32 0.91 0.72 0.41 0.16 0.85 0.52 0.41 0.10 0.7 0.31 0.42 0.01 Prepare a...
please i'd appreciate your assistance thank uou
Two compounds are to be separated via column chromatography using alumina as a solid phase, One is very polar, and the other is very non-polar. Which compound will elute first from the column? (0.5 pts) Determine the Ry for the two spots on the TLC plate below. Show all of your calculations. (2 pts) 5. A student mixed 0.60 g of ferrocene (molar mass = 186.04 g/mol) with 2.0 mL of acetic anhydride...
Question 2,3,4 please.
ESTIONS: 1. Many students do not recover 100% of the original mixture. Describe at least two possible problems that could cause less than 100% recovery of the mixture. 2. A student received a mixture that actually contained 50.0% salt and 50.0% sand. At the end of the experiment, this student calculated that his sample was composed of 45.2% salt and 54.8% sand. What might he have done (or not done correctly) during the experiment to cause this...
5. Would a liquid with high vapor pressure be more likely to be in liquid stationary phase or gas phase? Why? likely to be 6. When analyzing a GC spectra, you must mark a) your (b) height, and width at (e GC trace. Show your calculations either in your final report or (d) and width at (c), on the sample GC spectra below. Report the retention time of each peak (in minutes), the identity of each component in the mixture,...
Are you able to use acid base extraction to solve separate
these?
Suppose you steam distilled thyme, and found that the resulting oil possessed promising antibiotic activity. To determine which chemical is the active component, you need to separate the mixture. If the major components are the chemicals shown below, what technique could you use to purify 1 g of the oil and obtain a pure sample of each compound? Explain why your chosen technique would be successful. 2. 3...
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