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Chapter 1: Problem 23

Which separation method is better suited for obtaining sugar from cane juice- filtration or evaporation?

Short Answer

Expert verified
Evaporation is the better-suited method for obtaining sugar from cane juice compared to filtration as it effectively separates the dissolved sugar in the water, increasing its concentration until the solution is saturated and sugar crystals start to form. Filtration is not ideal for this separation because it does not effectively separate dissolved substances like sugar.

Step by step solution

01

Understand the properties of sugar and cane juice

Cane juice is a mixture containing sugar (sucrose) and other substances like water, minerals, and organic compounds. The goal is to separate the sugar from the other components present in the mixture.
02

Describing Filtration

Filtration is a separation technique typically used to separate solid particles from a liquid solution. It involves passing the mixture through a filter material, which allows only specific-sized particles to pass through, retaining larger particles. This method is most effective when the solid particles are relatively large and easily trapped by the filter.
03

Describing Evaporation

Evaporation is a separation technique that involves heating a liquid solution to convert the solvent (typically water) into vapor and leaving the solute (the substance dissolved in the solvent, in this case, sugar) behind. As the solvent evaporates, the solute's concentration increases, and it eventually crystallizes as the solution becomes saturated.
04

Evaluate Filtration for Separating Sugar

In the case of cane juice, sugar is dissolved in water, making it a solute in the solution. Filtration does not effectively separate dissolved substances like sugar, as the filter allows the sugar-water solution to pass through along with other dissolved components. Thus, filtration is not an ideal method for obtaining sugar from cane juice.
05

Evaluate Evaporation for Separating Sugar

Evaporation, on the other hand, can be highly effective for separating sugar from cane juice. By evaporating the water in the juice, the sugar concentration increases until the solution is saturated, and sugar crystals start to form. The sugar can then be collected by further evaporating the remaining water or cooling the solution to promote crystallization.
06

Conclusion

Considering the properties of sugar as a solute in cane juice and the separation methods available, evaporation is the better-suited method for obtaining sugar from cane juice compared to filtration.

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Most popular questions from this chapter

(a) What is the length of the pencil in the following figure if the ruler reads in centimeters? How many significant figures are there in this measurement? (b) An automobile speedometer with circular scales reading both miles per hour and kilometers per hour is shown. What speed is indicated, in both units? How many significant figures are in the measurements? [Section 1.6]

Identify each of the following as measurements of length, area, volume, mass, density, time, or temperature: (a) \(25 \mathrm{ps}\), (b) \(374.2 \mathrm{mg}\) (c) \(77 \mathrm{~K}\) (d) \(100,000 \mathrm{~km}^{2}\) (e) \(1.06 \mu \mathrm{m}\) (f) \(16 \mathrm{nm}^{2},(\mathrm{~g})-78^{\circ} \mathrm{C}\) (h) \(2.56 \mathrm{~g} / \mathrm{cm}^{3}\) (i) \(28 \mathrm{~cm}^{3}\). [Section \(\left.1.5\right]\)

Classify each of the following as a pure substance or a mixture, If a mixture, indicate whether it is homogeneous or heterogeneous: (a) milk, (b) beer, (c) diamond, (d) mayonnaise.

What type of quantity (for example, length, volume, density) do the following units indicate? (a) \(\mathrm{m}^{3},(\mathbf{b}) \mathrm{ns},\) (c) \(\mathrm{mm}\) (d) \(\mathrm{g} / \mathrm{dm}^{3}\), (e) \({ }^{\circ} \mathrm{C},\) (f) \(\mathrm{ms}^{-1}\), (g) Pa.

Carry out the following operations and express the answers with the appropriate number of significant numbers. (a) \(43.029+0.02348\) (b) \(952.72-73.4201\) (c) \(\left(2.93 \times 10^{3}\right)(0.732)\) (d) \(0.06324 / 0.624\)
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