Can an impure sample of oleic acid be purified by recrystallization? Justify your answer for full...

Can an impure sample of oleic acid be purified by recrystallization? Justify your answer for full credit.

Solutions

Expert Solution

Oleic acid is an organic fatty acid. (C₁₈H₃₄O₂)

It has the formula CH₃(CH₂)₇CH=CH(CH₂)₇COOH. At room temperature oleic acid is in liquid state. It is colourless, odourless oil having boling point 360 °c.

As oleic acid is liquid at room temperature, we can not purified impure sample of oleic acid by recrystallization process. Because Crystallization process and recrystallization process are used for state substances.

To purified impure oleic acid we can use a distillation process.

Note:-

Crystallization:- The process of obtaining a solid in pure and crystalline form, from its solution is known as crystallizatio.

Recrystallization:- The process of repeated crystallization is known as recrystallization.

Distillation:- The process in which liquid is converted into its vapour phase at its boiling point and the vapour is then condensed back to liquid on cooling is known as distillation.

Distillation involves both evaporation of a liquid and condensation of its vapour.

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

Can an impure sample of citronellal be purified by recrystallization? Justify your answer.

A student purified a 500-mg sample of phthalic acid by recrystallization from water. The published solubility...

A student purified a 500-mg sample of phthalic acid by recrystallization from water. The published solubility of phthalic acid in 100mL of water is 0.54 g at 14C and 18 g at 99C. The smallest volume of boiling water the student could use to dissolve 500 mg of phthalic acid is 2.778 mL of water.Dissolution of phthalic acid in boiling water produced a dark-colored solution. The student allowed the solution to cool, added several spatulas full of activated carbon, and...

Draw all the possible triacylglycerols that can be constructed from glycerol, palmitic acid, and oleic acid....

Draw all the possible triacylglycerols that can be constructed from glycerol, palmitic acid, and oleic acid. Rank them in order of increasing melting point. Hint: There are six ( OOO,OOP,OPO,OPP,POP,PPP) I just need the drawing

You are attempting a recrystallization of the world’s only sample of charliebionic acid with a small...

You are attempting a recrystallization of the world’s only sample of charliebionic acid with a small amount of an unknown impurity. The acid is not soluble at all in water. The acid is very soluble in hot ethanol but only slightly soluble at room temperature. But as the solution cooled to room temperature, no precipitate formed. However, when the solution was cooled in an ice bath solid immediately formed. This solid was dried and the melting point measured. The melting...

TRUE OR FALSE: JUSTIFY THE ANSWER TO GET FULL CREDIT a). One can add time fixed...

TRUE OR FALSE: JUSTIFY THE ANSWER TO GET FULL CREDIT a). One can add time fixed effects if the regressor of interest varies across time for the same entity and across entities for the same point in time. b). In the fixed effects regression model, you should exclude one of the binary variables for entities when an intercept is present in the equation because one of the entities in the analysis is always excluded from the regression. c). The condition...

TRUE OR FALSE: JUSTIFY THE ANSWER TO GET FULL CREDIT a). One can add time fixed...

If 0.032g impure sample of aluminum is reacted with an excess of hydrochloric acid producing 32.4...

If 0.032g impure sample of aluminum is reacted with an excess of hydrochloric acid producing 32.4 mL of hydrogen gas, what is the percent purity of the aluminum if the hydrogen gas was collected over water at a temperature of 24.0 celcius and a pressure of 742 mmHg

After recrystallizing an impure sample of benzoic acid, a student scratched it off the filter paper...

After recrystallizing an impure sample of benzoic acid, a student scratched it off the filter paper and took a melting point. Most of the compound melted between 121 and 122 degrees Celsius. A small amount remained un-melted even at temperatures above 200 degrees celsius. Explain this behavior.

Answer the following. Justify your answer. (Can you please solve this simply or on paper simply?...

Answer the following. Justify your answer. (Can you please solve this simply or on paper simply? Thank you!) a) What are the 4 features of perfect competition? Using these features, is the market for table salt perfect competition (or close to perfect competition)? Explain each point. b) What 4 outcomes will a binding minimum wage have, and what 1 outcome has 2 possibilities. c) Describe economies of scope and economies of experience. Use a house builder as an example. d)...

Dissolving 3.82 g of an impure sample of calcium carbonate in hydrochloric acid produced 0.881 L...

Dissolving 3.82 g of an impure sample of calcium carbonate in hydrochloric acid produced 0.881 L of carbon dioxide (measured at 20.0°C and 737 mmHg). Calculate the percent by mass of calcium carbonate in the sample.

Subjects