chap3_even_soln

chap3_even_soln - Chapter 3 Stoichiometry Exercises 22. A =...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 3 Stoichiometry Exercises 22. A = 207.2 amu; Pb 24. A = 185 amu 26. GaAs can be either 69 GaAs or 71 GaAs. The mass spectrum of GaAs will have 2 peaks at 144 and 146 with intensities in the ratio of 60:40 or 3:2. ____________ 144 146 Ga 2 As 2 can be 69 Ga 2 As 2 , 69 Ga 71 GaAs 2 , or 71 Ga 2 As 2 . The mass spectrum will have three peaks at 288, 290, and 292 with intensities in the ratio of 36:48:16 or 9:12:4. We get this ratio from the following probability table: 69 Ga (0.60) 71 Ga (0.40) 69 Ga (0.60) 0.36 0.24 71 Ga (0.40) 0.24 0.16 _____________________ 288 290 292 28. 5.391 × 10 24 atoms Fe 30. 0.10 g C 32. HFC – 134a = 102.04 g/mol HCFC – 124 = 136.48 g/mol
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
34. a. 219.88 g/mol b. 310.18 g/mol c. 141.96 g/mol 36. a. 4.55 × 10 -3 mol P 4 O 6 b. 3.22 × 10 -3 mol Ca 3 (PO 4 ) 2 c. 7.04 × 10 -3 mol Na 2 HPO 4 38. a. 1.10 × 10 3 g P 4 O 6 b. 1.55 × 10 3 g Ca 3 (PO 4 ) 2 c. 7.10 × 10 2 g Na 2 HPO 4 40. a. 619 g P b. 310. g P c. 155 g P 42. a.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

chap3_even_soln - Chapter 3 Stoichiometry Exercises 22. A =...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online