Question

Second Week: A closer look at molecular geometries and polarity. n This part of the laboratory will make use of the PhET simulation for molecule polarity. On the phet.colorado.edu website, select "Play with Simulations." Now, choose "Chemistry" in the left options of simulations, and then select the "Molecule Polarity" simulation. sla bac amol al Choose the "Three Atoms" simalation. When the simulation loads, in the "vicw" menu, choose to display the bond dipoles, molecular dipoles, and partial charges Questions Water, H,O 1. Draw the Lewis dot structure for water below. Label the hvdrogen and oxygen atoms to match the letter labels from the simulation (A, B, and C). 2. What molecular geometry does water have? Which atom is more clectronegative, hydrogen or oxygen (answer below)? Set the atom clectronegativitics of atom A, B, and C accordingly. 3. Are there bond dipoles in water? Towards which atom, oxygen or hydrogen, do the bond dipoles point (f present 4. Is there an overall molecule dipole in water? Towards which end of the molecule is the overall molecule dipole pointed? 5. Bond dipoles and molecule dipoles point toward the more/less clectronegative atom(s)? (choose best answer). 6. What do you notice about the partial charges on the atoms in water? Ishcl the hydrogen and oxygen atoms to match the letter labels Diseide CO

Answer 1

1. H₂O HiOH tuw love pairs, therefox H-hydrogen molecule D-Oxygen Moleule 2. water has two bond pair and its imdecular geometry is detrahedral 3. Oxygen atom is more electonegative than hydrogen 4. There are dipoles in water molecule , because oxygen is electonegative than hydrogen, therefore it will attract bond paid toward itself. dipole is directed towards oxygen atom. 00