
(a)
Interpretation:
The effect of intermolecular forces on rate of evaporation has to be explained.
Concept introduction:
- Evaporation is a phenomenon applicable to liquids. It is defined as the transition from liquid phase to vapor phase in liquids. This transition occurs either by spontaneously without any external energy or in the presence of external energy. The rate of evaporation is affected by various factors.
- Intermolecular force is defined as the interactions between the components of a substance. The strength of interaction depends upon the type of components.
- If the components are ions of unlike charges, as in the case of ionic compounds, the interaction is quite strong which is called electrostatic force of attraction.
- When the components are non-polar neutral molecules, as in the case of covalent compounds, the intermolecular forces present are Van der Waals forces and London dispersion forces.
- When the components are of polar nature as in the case of polar covalent compounds, there can be hydrogen bonding, dipole-dipole forces acting between them.
- Each of these forces is not of equal strength. Thus different compounds have different kind of intermolecular forces and hence different properties.
(b)
Interpretation:
The effect of temperature on rate of evaporation has to be explained.
Concept introduction:
Temperature is measure of average kinetic energy possessed by the molecules. Thus, temperature of a substance implies the average kinetic energy possessed by its molecules. Temperature is measured in different scales like Celsius, Kelvin or Fahrenheit. If the freezing point of water is said to be
(c)
Interpretation:
The effect surface area on rate of evaporation has to be explained.
Concept introduction:
Surface area is the region corresponding to the surface of the molecules. It is associated with the size of the molecules. If the size is large, surface area is high. Molecules with high surface area get more exposure to surroundings.

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Chapter 9 Solutions
Bundle: Chemistry: An Atoms First Approach, Loose-leaf Version, 2nd + OWLv2 with Student Solutions Manual, 4 terms (24 months) Printed Access Card
- Draw the major elimination and substitution products formed in this reaction. Use a dash or wedge bond to indicate the stereochemistry of substituents on asymmetric centers, wehre applicable. Ignore and inorganic byproducts.arrow_forwardCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. Drawing Arrows THE Problem 33 of 35 N. C:0 Na + Submit Drag To Pan +arrow_forwardDraw the product of the E2 reaction shown below. Include the correct stereochemistry. Ignore and inorganic byproducts.arrow_forward
- Draw the major producrs of this SN1 reaction. Ignore any inorganic byproducts. Use a dash or wedge bond to indicate the sereochemistry of substituents on asymmetric centers where appllicable.arrow_forward5) Oxaloacetic Acid is an important intermediate in the biosynthesis of citric acid. Synthesize oxaloacetic acid using a mixed Claisen Condensation reaction with two different esters and a sodium ethoxide base. Give your answer as a scheme Hint 1: Your final acid product is producing using a decarboxylation reaction. Hint 2: Look up the structure of oxalic acid. HO all OH oxaloacetic acidarrow_forward20. The Brusselator. This hypothetical system was first proposed by a group work- ing in Brussels [see Prigogine and Lefever (1968)] in connection with spatially nonuniform chemical patterns. Because certain steps involve trimolecular reac tions, it is not a model of any real chemical system but rather a prototype that has been studied extensively. The reaction steps are A-X. B+X-Y+D. 2X+ Y-3X, X-E. 305 It is assumed that concentrations of A, B, D, and E are kept artificially con stant so that only X and Y vary with time. (a) Show that if all rate constants are chosen appropriately, the equations de scribing a Brusselator are: dt A-(B+ 1)x + x²y, dy =Bx-x²y. diarrow_forward
- Problem 3. Provide a mechanism for the following transformation: H₂SO A Me. Me Me Me Mearrow_forwardYou are trying to decide if there is a single reagent you can add that will make the following synthesis possible without any other major side products: xi 1. ☑ 2. H₂O хе i Draw the missing reagent X you think will make this synthesis work in the drawing area below. If there is no reagent that will make your desired product in good yield or without complications, just check the box under the drawing area and leave it blank. Click and drag to start drawing a structure. There is no reagent that will make this synthesis work without complications. : ☐ S ☐arrow_forwardPredict the major products of this organic reaction: H OH 1. LiAlH4 2. H₂O ? Note: be sure you use dash and wedge bonds when necessary, for example to distinguish between major products with different stereochemistry. Click and drag to start drawing a structure. G C टेarrow_forward
- For each reaction below, decide if the first stable organic product that forms in solution will create a new C-C bond, and check the appropriate box. Next, for each reaction to which you answered "Yes" to in the table, draw this product in the drawing area below. Note for advanced students: for this problem, don't worry if you think this product will continue to react under the current conditions - just focus on the first stable product you expect to form in solution. NH2 CI MgCl ? Will the first product that forms in this reaction create a new CC bond? Yes No MgBr ? Will the first product that forms in this reaction create a new CC bond? Yes No G टेarrow_forwardFor each reaction below, decide if the first stable organic product that forms in solution will create a new CC bond, and check the appropriate box. Next, for each reaction to which you answered "Yes" to in the table, draw this product in the drawing area below. Note for advanced students: for this problem, don't worry if you think this product will continue to react under the current conditions - just focus on the first stable product you expect to form in solution. དྲ。 ✗MgBr ? O CI Will the first product that forms in this reaction create a new C-C bond? Yes No • ? Will the first product that forms in this reaction create a new CC bond? Yes No × : ☐ Xarrow_forwardPredict the major products of this organic reaction: OH NaBH4 H ? CH3OH Note: be sure you use dash and wedge bonds when necessary, for example to distinguish between major products with different stereochemistry. Click and drag to start drawing a structure. ☐ : Sarrow_forward
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