Question

Homework 1 Chapter 1 1. Predict all bond angles and the shape of the molecules and ions. (draw Lewis structure first) Tetrahyda a. BF -8-F 09.5 b. HCO Trtrahedal 109.5 Tetrahadra c. CH CHO H-C-CITIO l09.5 d. CH3COOH Tetrohedral H-C=CIO H 109.5 2. Indicate the polarity of the following molecules. Draw Lewis structure and point out the polarity of each chemical bond and then point our the polarity of the molecule. 54 nonfdar 2.1 H1.5 H-C-C30 C(2.5)H21) 4 G(as)-cs.o) Polax 5 Polal CH2Cl2 a. G-2.5-H2.1 C-25-N30 b. HCN HI6-MM .4 Rolar 2.1 2.5 3-0 5 0-3.5-H-2.1 H---S Poloy c. H2O 1.4 CL.5-N-3.0 C-2.5-H-2. 5 d. CH3CN H-C-CEN Rolar

idk if I did it right if someone could check my work please

Answer 1

@ @ era in E ..BI.FI Tetrade | Tetrahedral geometry ! @ @ BFO :) ..7 76 109.50 ..B .. FL .. T Lewis structure i Tetrahedral - geometry Bond angle fan (7-8-F) is 109. 28° HCOO :-) To: - 1:0:0:0:H 1200 , Lewis structure . spr-hyb. Trigonal planar, o-e-o bond angle 1200

() . CHỊ CHO » Loſ H :o: a Hore..CH -2.1 * Lewis structure 12% 21h H 109.5°C CH H 109.50 - sprchy bo, dished Trigonal planar . . sp3-hybo lo-crc bond angle is 1200 HC-H bond angle is 109.50 d CH₂COOH :-) ľ # :0: | H..cic... Lewis structure 0 0120' (0--0) W 50H Bound ? H o H 109.5° angle - ce H-0-1 Bond angle H NH Spo_hyb. Spr-nyo.

2. @ Chaela :-) ī id: 7 za H. CH C . geometry Note Lewis strue fure Tetrahedral O (+») is divee fion of polarity . of chemical wond. Home 'clatom is more En atom than a and 'H' atom, so, direction towards et å bond.

© HON :=) H-CEN Lewis structure. Linear geometry direction of polarity of H-EN toward 'N'atom , due to 'N' is more En atom, © H2O2 => " Lewis structure o logist Bent molecular - shape direction Chwo) of bond polarity towards 0' atom due to 'o' alone is more en than 'Hr atom

CH₃ CN =) H..Ciin: C= N; Lewis structure Linear geometry polarity of -CH(EN bond towards 'N'artom