Chapter 2,
#120,123,130,137,146,149
Not collected, but these are great problems to challenge yourself. Really good subjects for study groups. Answers are written in the form of a comment (below) – no peeking!
Fully worked-out answers can be obtained upon email request to any of the study group coordinators, or me, or Nag. But we’ll only send you one answer. To get more than one answer, you’ll need to find other students (hopefully with different answers!) or a study group.
I did the book work fine I just didn’t know where else to post this but I am having trouble with Assignment: 2.10g TUT – Percent Composition to Formulas
on owl I am getting the right answer it just isn’t accepting it as correct.
Ch2 Book HW answers
#120: x = 4
#123: 1200g Cr2O3 needed
#130: Ti
#137: (a) 2.3E14 g/cm3 (b) 3.34E-3 g/cm3 (c) yup. Nucleus is more dense
#146: C9H12O5
#149: atomic weight, Avogaro’s number, density