a)
Interpretation: Whether simple or fractional distillation is more suitable to prepare drinking water from sea water should be determined.
Concept introduction: Simple distillation is separation technique that is used to separate mixture of organic compounds with difference in their boiling points more than
Fractional distillation is separation technique that separates various fractions of components in mixture. This process is based on vaporization of one or more fractions or parts of mixture. It is used to separate components of mixture that have difference in boiling points less than
b)
Interpretation: Whether simple or fractional distillation is more suitable to separatebenzene from toluene should be determined.
Concept introduction: Simple distillation is separation technique that is used to separate mixture of organic compounds with difference in their boiling points more than
Fractional distillation is separation technique that separates various fractions of components in mixture. This process is based on vaporization of one or more fractions or parts of mixture. It is used to separate components of mixture that have difference in boiling points less than
c)
Interpretation: Whether simple or fractional distillation is more suitable to obtain gasoline from crude oil should be determined.
Concept introduction: Simple distillation is separation technique that is used to separate mixture of organic compounds with difference in their boiling points more than
Fractional distillation is separation technique that separates various fractions of components in mixture. This process is based on vaporization of one or more fractions or parts of mixture. It is used to separate components of mixture that have difference in boiling points less than
d)
Interpretation: Whether simple or fractional distillation is more suitable to remove diethyl ether from
Concept introduction: Simple distillation is separation technique that is used to separate mixture of organic compounds with difference in their boiling points more than
Fractional distillation is separation technique that separates various fractions of components in mixture. This process is based on vaporization of one or more fractions or parts of mixture. It is used to separate components of mixture that have difference in boiling points less than
Trending nowThis is a popular solution!
Chapter 4 Solutions
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
- 3. Take another 10mL of the temporary hard water and boil for 5 minutes. Filter, then add 5 mL of soap solution to the filtrate and shake. What is the result? Is the water hard? Why is this type of harness called "temporary hardness"? What other substances cause temporary hardness? Write the equation for removal of temporary hardness by heating. Give 3 other methods of removing temporary hardness in water.arrow_forward13. Calculate the freezing point and boiling point of 2.5 g Al(NO3)3 in 18 g of H20. Assume complete disassociation.arrow_forwardA mixture of the two compounds shown below is dissolved in ether. Using the information given in the experiment, select all the correct statements regarding the extraction and isolation of the two compounds. X "NH₂ OA. X can be extracted from the organic layer using sodium hydroxide. О в. Y can be extracted from the organic layer using sodium hydroxide. OH Y OC. X can precipitate out of the aqueous layer by the addition of sodium hydroxide to the salt of X. OD. Y can precipitate out of the aqueous layer by the addition of sodium hydroxide to the salt of Y.arrow_forward
- What is caffeine? What is the purpose of decaffeination? How does direct and indirect solvent decaffeination work? How does it differ? Describe the properties of supercritical carbon dioxide. What are the advantages of using supercritical CO2 over the other methods? What are some of its disadvantages?arrow_forwardbeer. A 2.39- mg sample of safrole was dissolved in 103.0 mg of diphenyl ether. The solution had a melting point of 25.70°C. Calculate the molecular weight of safrole. The freezing point of pure diphenyl ether is 26.84°C, and the freezing- point- depression constant, Kf, is 8.00°C/m.arrow_forwardC. The vapor pressure of benzaldehyde at 97 °C is about 60 mm Hg. Assume atmospheric pressure is 760 mm Hg. If you collected 20 g of distillate from your steam distillation, how much of it was benzaldehyde? Show your calculation. ga (MW)APA (MW) BPB gB = Read pages 116-118 in Zubrick. The solubility of benzaldehyde is 1 g/350 mL of water and 1 g/1 mL of ether. How much of the benzaldehyde from 3c was dissolved in the ether layer after your first separation?arrow_forward
- A student performs a crystallization on an impure sample of biphenyl. The sample weighs 0.5 g and contains about 5% impurity. Based on his knowledge of solubility, the student decides to use benzene as the solvent. After crystallization, the crystals are dried and the nal weight is found to be 0.02 g. Assume that all steps in the crystallization are performed correctly, there are no spills, and the student lost very little solid on any glassware or in any of the transfers. Why is the recovery so low?arrow_forwardDifferentiate between simple distillation and fractional distillation. Please elaborate.arrow_forward1. Explain the importance of using a thermometer in the simple distillation setup. 2. Enumerate the characteristics of a substance for it to be separated from the heterogeneous mixture by steam distillation. 3. How does steam facilitate the distillation of essential oils? 4. Discuss some applications of simple distillation and steam distillation. Explain why you can use each method for the chosen application.arrow_forward
- What is the purpose of the ion exchange resin? a. The ion exchange resin takes out Ca2+ and gets rid of Na which makes the hard water softer. b. The ion exchange resin increases the amount of foam because it made the solution softer instead of hard water and you get more foam with soft water. c. The ion exchange resin replaces the Ca2+ and Mg2+ in hard water with Na+ ions so the cleansing properties of the soap are retained. d. The ion exchange resin removes Ca2+ and Mg2+ out of hard water to make it soft.arrow_forwardHow much of the preservative is needed to prepare a 120-mL preparation of Aluminum hydroxide gel based on this formulation? Ammonium alum 800 g Sodium carbonate 1000g Peppermint Oil 0.01% (0.01 g/100mL) Sodium benzoate 0.1% (0.1 g/100mL) Purified water, qs ad.2000 mL a. 0.12 g b. 60 g c. 48 g d. 0.012 garrow_forward2. State the processes that can be adopted to purify and test the purity of sodium benzoatearrow_forward
- Macroscale and Microscale Organic ExperimentsChemistryISBN:9781305577190Author:Kenneth L. Williamson, Katherine M. MastersPublisher:Brooks Cole