Workshop CHE 166
Answers for
Problem Set #8
1. 272 g
2. C2N2
3. 19.8 g Zn
4. 10.7 L
5. Ne: 1.21 atm; Ar: 0.20 atm; Xe: 0.585 atm
6. 13.0 g/mol (as written); 68.5 g/mol (if times are swapped)
7. [smallest rate] HI Kr ClO2 PH3 NH3 [fastest rate]; ratio(fastest/smallest) = 2.74
8. - 120 kJ/g H2
9. - 475.1 kJ
10. + 256.0 kJ
11. + 32.4 kJ (as written); - 137 kJ (sign for ethane is incorrect; should be - 84.7 kJ/mole)