Machine-translated by Google. Questions are authored in English.
Top

Discussion

For that same sample the weight average mass is about

  • A.15 000
  • B.20 000
  • C.13 333
  • D.16 667

Answer: D

Summing the products of number and mass squared and dividing by the total mass gives 5 \( \times \) 10\( ^{10} \) over 3 \( \times \) 10\( ^6 \), that is 16 667. It exceeds the number average because the heavier chains count for more.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.