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Activity #10.5: Polarity of Molecules AP ChemistryWhat effect does the shape or geometry of the molecule have on molecular polarity?Why?Model 1Non Polar MoleculePolar MoleculesCH4NH3H2O# Bonding electron pairs# Lone pairs of electrons on central atomAB designation1. Complete the table in Model 1. Determine the # of Bonding electron pairs and # of lone pairs of electronsfor each species.Compare your answers with your team members. 2. Identify the AB type for each molecule and check with your team members. 3. a What is the number of lone pairs of e-in the non polar molecule. b. What is the number of lone pairs of e-in the polar molecules4. Write a cohesive sentence that explains the relationship between lone pairs and polarity of a molecule.Why are oil and water mixtures immiscible? What causes sugar to dissolve in water? The geometry of a molecule has an effect on physical properties such as solubility. How can the molecular geometry be used to predict properties?EEEI
5. Draw and picture of CH2H2. Determine the number of bonding electron pairs and lone pairs of electrons. Is this a polar molecule? Explain.Model2Non Polar MoleculesPolar MoleculesKey= Carbon ( EN =2.5)= Chlorine (EN= 2.7)= Hydrogen (EN = 2.3)6. Write the formulas and names for the non-polar molecules.7. Write the formulas and names for the polar molecules. EE
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