
(a)
Interpretation:
The technique used to separate the mixture of table salt and pepper into pure components is to be described.
Concept introduction:
The basic techniques of separation of mixture components are:
Filtration - The method of filtration is used to separate the components of a mixture whose particle sizes are different. Filtration is also used to separate solids from liquids using sieve plates.
Crystallization - The method of crystallization involves the separation of components from a mixture in which the components have a difference in their solubility in a particular solvent. On cooling down the solution, the desired component crystallizes out of the solution.
Distillation - This method involves heating and cooling the mixture with components having large differences in their boiling points. The component with lower boiling point vapourises first. The component vapours are cooled down and collected in separate containers.
Chromatography - This separation technique is based on the difference between the solubilities of the components of a mixture in mobile and stationary phases. The component having greater solubility in the mobile phase is separated and collected first whereas the component with greater solubility in the stationary phase is separated later.
(b)
Interpretation:
The technique used to separate the mixture of drinking water and soot into pure components is to be described.
Concept introduction:
The basic techniques of separation of mixture components are:
Filtration - The method of filtration is used to separate the components of a mixture whose particle sizes are different. Filtration is also used to separate solids from liquids using sieve plates.
Crystallization - The method of crystallization involves the separation of components from a mixture in which the components have a difference in their solubility in a particular solvent. On cooling down the solution, the desired component crystallizes out of the solution.
Distillation - This method involves heating and cooling the mixture with components having large differences in their boiling points. The component with lower boiling point vapourises first. The component vapours are cooled down and collected in separate containers.
Chromatography - This separation technique is based on the difference between the solubilities of the components of a mixture in mobile and stationary phases. The component having greater solubility in the mobile phase is separated and collected first whereas the component with greater solubility in the stationary phase is separated later.
(c)
Interpretation:
The technique used to separate the mixture of crushed ice and crushed glass into pure components is to be described.
Concept introduction:
The basic techniques of separation of mixture components are:
Filtration - The method of filtration is used to separate the components of a mixture whose particle sizes are different. Filtration is also used to separate solids from liquids using sieve plates.
Crystallization - The method of crystallization involves the separation of components from a mixture in which the components have a difference in their solubility in a particular solvent. On cooling down the solution, the desired component crystallizes out of the solution.
Distillation - This method involves heating and cooling the mixture with components having large differences in their boiling points. The component with lower boiling point vapourises first. The component vapours are cooled down and collected in separate containers.
Chromatography - This separation technique is based on the difference between the solubilities of the components of a mixture in mobile and stationary phases. The component having greater solubility in the mobile phase is separated and collected first whereas the component with greater solubility in the stationary phase is separated later.
(d)
Interpretation:
The technique used to separate the mixture of sugar dissolved in ethanol into pure components is to be described.
Concept introduction:
The basic techniques of separation of mixture components are:
Filtration - The method of filtration is used to separate the components of a mixture whose particle sizes are different. Filtration is also used to separate solids from liquids using sieve plates.
Crystallization - The method of crystallization involves the separation of components from a mixture in which the components have a difference in their solubility in a particular solvent. On cooling down the solution, the desired component crystallizes out of the solution.
Distillation - This method involves heating and cooling the mixture with components having large differences in their boiling points. The component with lower boiling point vapourises first. The component vapours are cooled down and collected in separate containers.
Chromatography - This separation technique is based on the difference between the solubilities of the components of a mixture in mobile and stationary phases. The component having greater solubility in the mobile phase is separated and collected first whereas the component with greater solubility in the stationary phase is separated later.
(e)
Interpretation:
The technique used to separate two pigments chlorophyll a and chlorophyll b from spinach leaves is to be described.
Concept introduction:
The basic techniques of separation of mixture components are:
Filtration - The method of filtration is used to separate the components of a mixture whose particle sizes are different. Filtration is also used to separate solids from liquids using sieve plates.
Crystallization - The method of crystallization involves the separation of components from a mixture in which the components have a difference in their solubility in a particular solvent. On cooling down the solution, the desired component crystallizes out of the solution.
Distillation - This method involves heating and cooling the mixture with components having large differences in their boiling points. The component with lower boiling point vapourises first. The component vapours are cooled down and collected in separate containers.
Chromatography - This separation technique is based on the difference between the solubilities of the components of a mixture in mobile and stationary phases. The component having greater solubility in the mobile phase is separated and collected first whereas the component with greater solubility in the stationary phase is separated later.

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Chapter 2 Solutions
Student Solutions Manual For Silberberg Chemistry: The Molecular Nature Of Matter And Change With Advanced Topics
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- In a sulfonated derivative of benzene, indicate how -SO3H can be eliminated.arrow_forwardWhat is the equilibrium expression (law of mass action) for the following reaction:CO2 (g) + H2O (l) ⇋ H+ (aq) + HCO3- (aq)arrow_forwardIndicate the compound resulting from adding NaOH cyclopentane-CH2-CHO.arrow_forward
- Use the provided information to calculate Kc for the following reaction at 550 °C: H2(g) + CO2(g) ⇌ CO(g) + H2O(g) Kc = ?CoO(s) + CO(g) ⇌ Co(s) + CO2(g) Kc1 = 490CoO(s) + H2(g) ⇌ Co(s) + H2O(g) Kc2 = 67arrow_forwardCalculate Kc for the reaction: I2 (g) ⇋ 2 I (g) Kp = 6.26 x 10-22 at 298Karrow_forwardFor each scenario below, select the color of the solution using the indicator thymol blue during the titration. When you first add indicator to your Na2CO3solution, the solution is basic (pH ~10), and the color is ["", "", "", "", ""] . At the equivalence point for the titration, the moles of added HCl are equal to the moles of Na2CO3. One drop (or less!) past this is called the endpoint. The added HCl begins to titrate the thymol blue indicator itself. At the endpoint, the indicator color is ["", "", "", "", ""] . When you weren't paying attention and added too much HCl (~12 mL extra), the color is ["", "", "", "", ""] . When you really weren't paying attention and reached the second equivalence point of Na2CO3, the color isarrow_forward
- To convert cyclopentane-CH2-CHO to cyclopentane-CH2-CH3, compound A is added, followed by (CH3)3CO-K+, DMS at 100oC. Indicate which compound A is.arrow_forwardIndicate how to obtain the compound 2-Hydroxy-2-phenylacetonitrile from phenylmethanol.arrow_forwardIndicate the reagent needed to go from cyclopentane-CH2-CHO to cyclopentane-CH2-CH=CH-C6H5.arrow_forward
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