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Consider a 250mL solution composed of 25% pentane by volume and 75%n-pentanol by volume. The following is a summary of the chemical and physical data for these two organic compounds. Pentane (CSH12): bp = 36.1°C, MW = 72.15 g/mol, p = 0.626 g/mL n-Pentanol (CsH,,OH): bp = 138.5°C, MW = 88.15 g/mol, p = 0.814 g/mL %3D a) Can the components of the pentane/n- pentanol solution described above be effectively separated by simple distillation? No. A simple distillation cannot effectively separate these two components because simple distillations are only capable of separating liquid mixture when at least one of the components is water. No. A simple distillation cannot effectively separate these two components because their molecular weights are too similar Yes. A simple distillation can effectively separate these two components because their boiling points are sufficiently different. Yes. A simple distillation can effectively separate these two components because their densities are sufficiently different b) Can the components of the pentane/n- pentanol solution described above be effectively separated by fractional distillation? No. A fractional distillation cannot effectively separate these two components because fractional distillations can only be used to separate liquids that have very similar boiling points. Yes. A fractional distillation can effectively separate these two components because their boiling points are sufficiently different. No. A fractional distillation cannot effectively separate these two components because their molecular weights are too similar. Yes. A fractional distillation can effectively separate these two components because their densities are sufficiently different.

Consider a 250mL solution composed of 25% pentane by volume and 75%n-pentanol by volume. The following is a summary of the chemical and physical data for these two organic compounds. Pentane (CSH12): bp = 36.1°C, MW = 72.15 g/mol, p = 0.626 g/mL n-Pentanol (CsH,,OH): bp = 138.5°C, MW = 88.15 g/mol, p = 0.814 g/mL %3D a) Can the components of the pentane/n- pentanol solution described above be effectively separated by simple distillation? No. A simple distillation cannot effectively separate these two components because simple distillations are only capable of separating liquid mixture when at least one of the components is water. No. A simple distillation cannot effectively separate these two components because their molecular weights are too similar Yes. A simple distillation can effectively separate these two components because their boiling points are sufficiently different. Yes. A simple distillation can effectively separate these two components because their densities are sufficiently different b) Can the components of the pentane/n- pentanol solution described above be effectively separated by fractional distillation? No. A fractional distillation cannot effectively separate these two components because fractional distillations can only be used to separate liquids that have very similar boiling points. Yes. A fractional distillation can effectively separate these two components because their boiling points are sufficiently different. No. A fractional distillation cannot effectively separate these two components because their molecular weights are too similar. Yes. A fractional distillation can effectively separate these two components because their densities are sufficiently different.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Consider a 250mL solution composed of 25% pentane by volume and 75%n-pentanol by volume. The following is a summary of the chemical and physical data for these two organic compounds. Pentane (CsH,12): bp = 36.1°C, MW = 72.15 g/mol, p = 0.626 g/mL n-Pentanol (CsH1,OH): bp = 138.5°C, MW = 88.15 g/mol, p = 0.814 g/mL %3D a) Can the components of the pentane/n- pentanol solution described above be effectively separated by simple distillation? No. A simple distillation cannot effectively separate these two components because simple distillations are only capable of separating liquid mixture when at least one of the components is water. No. A simple distillation cannot effectively separate these two components because their molecular weights are too similar Yes. A simple distillation can effectively separate these two components because their boiling points are sufficiently different. Yes. A simple distillation can effectively separate these two components because their densities are sufficiently D different b) Can the components of the pentane/n- pentanol solution described above be effectively separated by fractional distillation? No. A fractional distillation cannot effectively separate these two components because fractional distillations A can only be used to separate liquids that have very similar boiling points. Yes. A fractional distillation can effectively separate these two components because their boiling points are sufficiently different. No. A fractional distillation cannot effectively separate these two components because their molecular weights are too similar. Yes. A fractional distillation can effectively separate these two components because their densities are sufficiently different.
Transcribed Image Text:Consider a 250mL solution composed of 25% pentane by volume and 75%n-pentanol by volume. The following is a summary of the chemical and physical data for these two organic compounds. Pentane (CsH,12): bp = 36.1°C, MW = 72.15 g/mol, p = 0.626 g/mL n-Pentanol (CsH1,OH): bp = 138.5°C, MW = 88.15 g/mol, p = 0.814 g/mL %3D a) Can the components of the pentane/n- pentanol solution described above be effectively separated by simple distillation? No. A simple distillation cannot effectively separate these two components because simple distillations are only capable of separating liquid mixture when at least one of the components is water. No. A simple distillation cannot effectively separate these two components because their molecular weights are too similar Yes. A simple distillation can effectively separate these two components because their boiling points are sufficiently different. Yes. A simple distillation can effectively separate these two components because their densities are sufficiently D different b) Can the components of the pentane/n- pentanol solution described above be effectively separated by fractional distillation? No. A fractional distillation cannot effectively separate these two components because fractional distillations A can only be used to separate liquids that have very similar boiling points. Yes. A fractional distillation can effectively separate these two components because their boiling points are sufficiently different. No. A fractional distillation cannot effectively separate these two components because their molecular weights are too similar. Yes. A fractional distillation can effectively separate these two components because their densities are sufficiently different.
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