The phosphorus trihalides 1PX32 show the following variationin the bond angle X¬P¬X: PF3, 96.3°; PCl3, 100.3°;PBr3, 101.0°; PI3, 102.0°. The trend is generally attributedto the change in the electronegativity of the halogen.(a) Assuming that all electron domains are the same size,what value of the X¬P¬X angle is predicted by the VSEPRmodel? (b) What is the general trend in the X¬P¬Xangle as the halide electronegativity increases? (c) Usingthe VSEPR model, explain the observed trend in X¬P¬Xangle as the electronegativity of X changes. (d) Based onyour answer to part (c), predict the structure of PBrCl4.
The phosphorus trihalides 1PX32 show the following variationin the bond angle X¬P¬X: PF3, 96.3°; PCl3, 100.3°;PBr3, 101.0°; PI3, 102.0°. The trend is generally attributedto the change in the electronegativity of the halogen.(a) Assuming that all electron domains are the same size,what value of the X¬P¬X angle is predicted by the VSEPRmodel? (b) What is the general trend in the X¬P¬Xangle as the halide electronegativity increases? (c) Usingthe VSEPR model, explain the observed trend in X¬P¬Xangle as the electronegativity of X changes. (d) Based onyour answer to part (c), predict the structure of PBrCl4.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The phosphorus trihalides 1PX32 show the following variation
in the bond angle X¬P¬X: PF3, 96.3°; PCl3, 100.3°;
PBr3, 101.0°; PI3, 102.0°. The trend is generally attributed
to the change in the electronegativity of the halogen.
(a) Assuming that all electron domains are the same size,
what value of the X¬P¬X angle is predicted by the VSEPR
model? (b) What is the general trend in the X¬P¬X
angle as the halide electronegativity increases? (c) Using
the VSEPR model, explain the observed trend in X¬P¬X
angle as the electronegativity of X changes. (d) Based on
your answer to part (c), predict the structure of PBrCl4.
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