Given the following bond lengths in pm:
N-N,145;N =N,123;Br-Br,228
What is the best estimate of the N-Br bond length in NBr₃ in pm?

Question

Given the following bond lengths in pm: N-N,145;N =N,123;Br-Br,228 What is the best estimate of the N-Br bond length in NBr₃ in pm? A)373 pm B)125 pm C)351 pm D)216 pm E)561 pm

Quizplus · Accepted Answer

The best estimate for the N-Br bond length in NBr₃ can be approximated by taking the average of the N-N and Br-Br bond lengths. This gives (145 pm + 228 pm) / 2 = 186.5 pm. However, since none of the options exactly match this calculation, the closest option, which is 216 pm, is chosen as the best estimate.

Given the Following Bond Lengths in Pm