Question

Part 1 Observe the interactions between one water moles water molecule with ethane. Within un describe 13. What is the intermolecular force that hold Briefly explain your answer. thin your clecule and each of the ons in NaCl Now observe one oup, describe what happens. holds Hotecther with an individual ion (either Na or CI) 14. Use your kit to assess whether you know about the actual solubility of NaCl in water to assess whether NaCl can dissolve in H.O. Is your obsen O s your observation consistent with what 15. "Like dissolves like is a guideline • "Like dissolves like" means that we can usually be intermixed. Also, we can Bonerally intermix (As an example of two substances that don oll and water. Can you speculate about which is polar and when Given this guideline, it may not be generally not soluble in polar compou with what you have learned thus far abo isn't soluble in H2O. lace the CH3CH molecule in the center of the small tray in your lab room, and pie molecules from the kit around the edge of the tray Gently shake the tray from the ethane seem to readily dissolve" in the water, or not? sa guideline for predictin the solubility ofone chemical compound in another. means that we should inate that the molecules of two polar substances . Also, we can expect that molecules of two nonpolar substances will two substances that don't readily intermix readily, think of Acculate about which is polar and which is nonpolar?) ne, it may not be surprisine to that CH CH a nonpolar compound, is s polar compounds like Ho You will now use your model kit, together ve learned thus far about intermolecular interactions to consider why CHUCH all tray in your lab room, and place the 12 H2O the tray. Gently shake the tray from side to side. Does 16. What type of intermolecular force could occur between H20 and ethane 17. Looking at the entire model kit: do any of the molecules or ions repel each other! Part E 18. Use what you learned in Parts A-D to list the four types of intermolecular forces, attempting to arrange them in order of strength from highest to lowest. 19. Does your ranking of the strengths of intermolecular forces correlate with the ease or difficulty you had separating each of the model examples? What about the covalent bonds? Are they stronger weaker than the intermolecular forces that hold neighboring molecules together?

Answer 1

13.) The intermolecular force that acts between individual ions of Sodium Chloride and Water is ION-DIPOLE INTERACTION.

The Oxygen of the Water molecule interacts with the Na⁺ and holds the ion to form a network

  Na⁺----------OH₂

While the Cl^- interacts with the H atoms more like a hydrogen bond but not in actual as chlorine is not such electronegative

Cl^--1-----------H-O-H------------Cl^-1

14. NaCl is soluble in water and it is consistent with the Data given.