Chemistry, 30.06.2019 23:20 hjamya17

During the liquid-liquid extraction of your panacetin sample, the dissolve acetylsalicylic acid (aspirin) will be in which layer

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Panacetin is a mixture of three components: sucrose, aspirin and tylenol. To determine the arrangement of layers, you must research on the densities of the components. The densities of sucrose, aspirin, and tylenol are 1.59 g/mL, 1.4 g/mL and 1.26 g/mL. The more dense the component, the farther it sinks to the bottom. Thus, the topmost layer is tylenol, followed by aspirin, and the bottom layer is sucrose. Therefore, aspirin is placed in the second layer.

Answer from: DenniJ19

Then, as mentioned, aspirin is placed in the second layer.

Explanation:

Liquid-liquid extraction is a very useful method to separate components from a mixture. It consists of separating one or several substances dissolved in a solvent by transferring them to another insoluble, or partially insoluble, solvent in the former. The transfer of matter is achieved by direct contact between the two liquid phases.

Panacetin is a mixture of sucrose, aspirin and tylenol, whose densities are respectively are 1.59 g / mL, 1.4 g / mL and 1.26 g / mL.

For the extraction process, the solution is arranged in a separating or separating funnel, an organic solvent immiscible with water is added (ethyl ether is the most used), the solution with the compound to be separated, the funnel is covered and the funnel is covered. shake According to the solubilities and density different layers are observed. The denser the compound, the more it will sink. Therefore, the upper layer is tylenol, followed by aspirin, and the lower layer is sucrose. Subsequently, by separating the separating funnel, the phases are separated.

Then, as mentioned, aspirin is placed in the second layer.

Answer from: Quest

Yes she is correct. the answer is completely correct

Answer from: Quest

Mass is the amount of matter in an object. weight is the measurement of the pull of gravity on an object. say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165) now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon. however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant. in conclusion it is possible for your weight to change as your mass remains constant.

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