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- Which of the following organic Compounds you think is most readily soluble in water? Explain (a) Toluene (b) Oxalic acid (e) BenzaldehydeWhich would you expect to be more soluble in water, cyclohexane or dioxane?Consider the data in the table. Compound Melting point (°C) ????? (??/???)ΔHfus (kJ/mol) Boiling point (°C) ????? (??/???)ΔHvap (kJ/mol) HFHF −83.11 4.577 19.54 25.18 HClHCl −114.3 1.991 −84.9 17.53 HBrHBr −86.96 2.406 −67.0 19.27 HIHI −50.91 2.871 −35.38 21.16 Using the data in the table, calculate Δ?fusΔSfus and Δ?vapΔSvap for HF.HF. Δ?fus=ΔSfus= J/(K⋅mol)J/(K⋅mol) Δ?vap=ΔSvap= J/(K⋅mol)J/(K⋅mol) Determine the entropy change when 7.60 mol HF(l)7.60 mol HF(l) boils at atmospheric pressure. Δ?=ΔS= J/K
- Consider the data in the table. Compound Melting point (°C) ????? (??/???)ΔHfus (kJ/mol) Boiling point (°C) ????? (??/???)ΔHvap (kJ/mol) HFHF −83.11 4.577 19.54 25.18 HClHCl −114.3 1.991 −84.9 17.53 HBrHBr −86.96 2.406 −67.0 19.27 HIHI −50.91 2.871 −35.38 21.16 Using the data in the table, calculate Δ?fus and Δ?vap for HF. Δ?fus= J/(K⋅mol) Δ?vap= J/(K⋅mol) Determine the entropy change when 8.70 mol HF(g) condenses at atmospheric pressure. Δ?= J/K1) What will happen to a sample of XY if you start at (12 atm, 200 °C) and increase t pressure at constant temperature to 35 atm? 2) If this compound is polar, at what temperature and pressure would you chose to dissolve a small amount of this compound in water? Why?You will not find “hydroxide” in the stockroom, but you will find sodium hydroxide (NaOH) andpotassium hydroxide (KOH). Lithium hydroxide (LiOH) is expensive and used in spacecraft airfilters since hydroxide reacts with carbon dioxide, and lithium is lighter than sodium or potassium.Cesium and francium hydroxides are very expensive and little used. Is this information consistentwith your answer to the previous question?
- -Which substance has the greatest tendency to participate in a chemical reaction with small chain alcohol in an acidified chemical environment? a. Substance A b. Substance B c. Substance C d. Substance D e. Substance E -Which substance is expected to turn blue litmus paper into red color? a. Substance A b. Substance B c. Substance C d. Substance D e. Substance E -The physical properties of the substances are influenced by intermolecular forces of attraction. Which substance(s) are predominantly influenced by the intermolecular association of the molecules via hydrogen bonding? a.Substance A only b. Substance A and C c. Substance A, B, and C d.Substance A, B, C, and D -Aside from London dispersion forces, which substance do you expect dipole interactions to be effective? a. Substance A and B b. Substance B and D c. Substance A and C d. Substance B and E -Which substance will exhibit the lowest melting point? a. Substance A b. Substance B c. Substance C d. Substance D e. Substance E…What is more soluble in water, CH2Cl2 or CH3OH? Why?9. Draw Lewis Structures of the following compounds: (You will use these Lewis Structures to predict intermolecular forces.) 1. Compound V (CH3CH3) 2. Compound W (HOCH2CH2OH) 3. Compound X (CH3CH2CH3) 4. Compound Y (CH3CH2OH). 5. Compound Z (CH3-O-CH3)
- 3. Consider the following pairs of compounds. ( a. Br2 and 1₂- Pick the one with the higher vapor pressures at a given temperature. b. NH3 or CH4 - Pick the one with the higher boiling point.Part A Which of the following likely to be more soluble in hexane, C6H14? Explain your answer in each case. Match the items in the left column to the appropriate blanks in the sentences on the right. hydrogen bonding dispersion forces acetic acid ionic bonds octanoic acid benzene glycerol CaCl₂ CC14 is more soluble, because Among CCl4 and CaCl2, are less likely to be overcome by solute-solvent interactions. Among benzene (C6H6) and glycerol (CH₂(OH) CH(OH)CH₂ OH), soluble, because interaction. in in Among octanoic acid (CH3 (CH₂)6 COOH) and acetic acid (CH3 COOH), more soluble, because it has similar to those in hexane. Reset is more is less likely to be overcome by solute-solvent will be HelpHow do attractive forces between like molecules compare with attractive forces between unlike molecules in the system acetic acid – water? Support your answer. How would you expect the composition of the vapor above the solution of a mixture of acetic acid and water compared to the liquid with which it is in equilibrium? Define azeotrope. Does the system form and azeotropic system? Explain.