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Solved: The As—As bond length in elemental arsenic is 2.48

Chapter , Problem 85AE

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QUESTION:

The \(\mathrm{As}-\mathrm{As}\) bond length in elemental arsenic is \(2.48 \AA\). The \(\mathrm{Cl}-\mathrm{Cl}\) bond length in \(\mathrm{Cl}_{2} \text { is } 1.99 \AA\).

(a) Based on these data, what is the predicted \(\mathrm{As}-\mathrm{Cl}\) bond length in arsenic trichloride, \(\mathrm{AsCl}_{3}\), in which each of the three \(\mathrm{Cl}\) atoms is bonded to the As atom?

(b) What bond length is predicted for \(\mathrm{AsCl}_{3}\), using the atomic radii in Figure 7.7?

Equation Transcription:

Å

Å

     

       

Text Transcription:

As-As

2.48 \AA

Cl-Cl

Cl2 is 1.99 \AA

As-Cl

AsCl3    

Cl      

AsCl3

Questions & Answers

QUESTION:

The \(\mathrm{As}-\mathrm{As}\) bond length in elemental arsenic is \(2.48 \AA\). The \(\mathrm{Cl}-\mathrm{Cl}\) bond length in \(\mathrm{Cl}_{2} \text { is } 1.99 \AA\).

(a) Based on these data, what is the predicted \(\mathrm{As}-\mathrm{Cl}\) bond length in arsenic trichloride, \(\mathrm{AsCl}_{3}\), in which each of the three \(\mathrm{Cl}\) atoms is bonded to the As atom?

(b) What bond length is predicted for \(\mathrm{AsCl}_{3}\), using the atomic radii in Figure 7.7?

Equation Transcription:

Å

Å

     

       

Text Transcription:

As-As

2.48 \AA

Cl-Cl

Cl2 is 1.99 \AA

As-Cl

AsCl3    

Cl      

AsCl3

ANSWER:

Step 1 of 3

The elemental atomic radius of As-As is .

The atomic radius of Cl-Cl is .

 

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