in the HCl molecule the separation between the nuclei of the two atoms is about 1.27Angstrom.find

Asked by  | 5th Jan, 2010, 01:21: AM

Expert Answer:

Let x axis be along the distance between the two atoms, and hydrogen atom be at origin.

Then,

Xcm = (mH(0) + mCl(1.27))/(mH + mCl)

= mCl(1.27)/(mH + mCl)

= 35.5mH (1.27)/(mH + 35.5mH )

= 35.5x1.27/36.5

= 1.235 A

Hence the centre of mass is 1.235 A from the hydrogen atom along the line joining the two atoms.

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Answered by  | 5th Jan, 2010, 06:17: PM

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