Lab 8 Chemistry - lewis Structure PDF

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lewis Structure...

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Lab 8 Chemistry

Date Experiment Performed:11/19/2020 Date Experiment Submitted:11/21/2020

Data:

Discussion 1.

Sulphur is the longest size than Oxygen atom. The bond length is the distance between the centers of two atoms. Since Sulphur is large, the S--H bond is larger than the O--H bond.

2. What is the relationship between atomic size and bond length for H2O / H2S and CO2 /

CS2? Atomic size increases → bond length also increases. “S” is larger in size than O so the S--H bond in H2S is larger than O--H bond in H2O.

Again in CO2 and CS2, the C--S bond will be larger than C--O bond due to higher atomic size of sulphur.

3. What are the carbon-carbon bond lengths in each of these three molecules? Using Table 7.2 draw the structures for C2H6, C2H4 and C2H2, and determine the carbon-carbon bond lengths for each structure. C2H6

C--C bond length in ethane is 1.54 A or 154 P.m C is 5p^3 hybridization, bond length -- 109° 28’.

~C2H4

C--C bond length in ethane is 1.33 A or 133 P.m. Carbons are 5p^2 hybridization bond angle 120°.

~C2H2

C--C bond length is 1.20 A or 120 P.m. Carbons are %p hybridization bond angle 180°.

4. What is the pattern in bond length that you notice for the carbon compounds in question 3? On question 3 the C--C bond length of C2H6 is larger than the C--C bond of C2H4 than C--C bond of C2H2....