QUESTION 1 Objective: Understand the hydrogen bond. Explain how hydrogen bonding affects the boiling point of a compound using the data below. Compounds H₂O H₂S H₂Se Molecular Weight(g/mol) 18 34 81 Boiling Point (°C) 100 <- 60 -41
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- 1. This question will compare the three molecules, A - C shown below. Your task is to evaluate the intermolecular forces that exist in pure samples of each compound and in solutions to answer the questions about the physical properties below. A В H H CEN: :N-CH C=P H H C2H3N CH;N CH3POO OO At 60 g of solubility and 70 degrees C. KCI is O covalent unsaturated supersaturated saturatedWhat type(s) of intermolecular forces are expected between CH;CH,CH,CH,CH,CH,OH molecules H H H H H H- -0-H H H H H H Indicate with a Y (yes) or an N (no) which apply. dipole forces induced dipole forces hydrogen bonding
- 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/KConsider 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/KAspirin has a higher molar mass compared to salicylic acid, however aspirin melts at a lower temperature than salicylic acid. Provide a brief explanation for this observation. Table 1 Compound: Formula: Salicylic Acid C;H6O3 Aspirin C9H3O4 Molar Mass: 138.12 Melting point: Ka 158-160°C 1.08 x 10³ 180.15 140-142°C 2.72 x 10$ pKa Solubility (g/100ML) 2.99 4.57 0.18 0.25
- Please identify the compound with the lowest boiling point? HO. IV %3D ON OIIQUESTION 7 7. What is the boiling point of the following structure? CH;-C-OK+ OA High O B. High medium OC. Lowto sTut61egms! bns t otow ni0 lo yllid uloz adT D 4. If the AHoution ( KI )= 15 kJ/mol, AHnydration (K*) = -335 kJ/mol, and AHydration (1-) = -293 kJ/mol, then %3D 50.00 calculate the lattice energy for potassium iodide.
- Solubility- hexachlorobenzene Q1)Using the Lewis structures of the molecule and water, identify and label areas of intermolecular attraction. ▪More than one water molecule should be shown ▪Label the type of IM forces present b)Using the Lewis structures of the molecule and a nonpolar solvent (e.g., hexane), identify and label areas of intermolecular attraction. c)explain the solubility (or lack thereof) of your molecule in water. When available, use solubility data (at the same temperature) to support your explanation. d)explain the solubility (or lack thereof) of your molecule in nonpolar solvents. When available, use solubility data (at the same temperature) to support your explanation. e)when dissolved in water, qualitatively discuss whether the molecule is a strong electrolyte, weak electrolyte, or nonelectrolyte. Please answer very soon will give rating surely All questions answers neededWhich of the following would be expected to form hydrogen bonds with water? Choose all that appły. H acetamide H- C- N FH H H H H. butanoic acid H- OH H. H. H H. H. H- -H cyclobutane H dimethyl ether H- C- ·C -- O None of the Above11. Complete the chart. (Total point value for chart 28) **You should not have the same answer for all the IMF in the last column** What type of Intermolecular Polarity of Molecule Justify your answer. (2) Molecular Formula Lewis Structure(1) Polarity of Bond. Justify your answer. (2) Forces exist in the molecule. Justify your answer. (2) 02 N2 H2O Between the H and the O NH3 Between the H and the N 24 MacBook Air 吕0。 F3 E4 ES F6 F7 F10 F8 F9 # $ 4 & * 3 5 6 7 8 E R T Y U