Consider the following hydrides: NH_3, PH_3, AsH_3, and SdH_3. What is their ele

Question

Consider the following hydrides: NH_3, PH_3, AsH_3, and SdH_3. What is their electronic geometry? What is their molecular geometry? Which molecule would you predict has the highest dipole moment? Consider the ideal H-X-H angle, where X is the central atom. Which would you predict has the largest deviation from that angle, and would the observed H-X-H angle be larger or smaller than the ideal value? Answer the following questions about the bonding in dimethyl formamide. The Lewis structure without nonbonding electrons is shown below. Give the following information for atom a and for atom b: How many electron groups are present and what is the electronic geometry? What is the shape associated with this bonding arrangement? What is its hybridization? How many sigma and how many pi bonds has it formed.

Explanation / Answer

6. a- carbon

3 electron pairs are present . so electron geometry is planar triangle

molecular geometry is planar triangle

hybridisation is Sp2

3 sigma, 1 Pi bonds

b- carbon

4 electron pairs are present . so electron geometry is tetrahydral

molecular geometry is tetrahydral

hybridisation is Sp3

4 sigma, 0 Pi bonds

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