Workshop CHE 166
Answers for
Problem Set #2
 

1. Protons are not evenly distributed throughout an atom.

2. 16 p⁺, 15 n⁰, 16 e^-

3. 35 p⁺, 46 n⁰, 35 e^-

4. 6.1 times

5. boron- 11

6. 25.62 amu

7. 9.28 x 10^-23 g

8. 1.055 x 10^-22 g

9. 1.56 x 10^-4 g

10. 3.58 mol

11. 0.387 mol

12. 2.48 x 10¹³ atoms

13. 2.28 x 10² g/mol

14. 151 g

15. 1.67 x 10²¹ molecules

16. 3.55 g

17. 4.55 mol

18. 1.7 x 10^-5 mol

19. 363 g

20. 1.76 x 10²³ atoms

21. 1.3 x 10²³ atoms

22. 2.37 x 10²³

23. 12.3 g

24. 1.64 mol

25. 9.6 x 10²⁵ atoms

26. 1.44 g

27. 27.4%

28. 74.4%

29. 56.6% K, 8.7% C, 34.7% O

30. 52.2% C, 13.1% H, 34.7% O

31. 1.5%

32. C₃H₄O₃

33. C₄H₄O

34. CH₂; (CH₂)₃ or C₃H₆

35.

a) C₅H₇N
b) (C₅H₇N)₂ or C₁₀H₁₄N₂

36.

a) C₃H₈
b) SnF₄
c) NH₂
d) CSCl₂
e) C₃OF₆
f) Na₂S₂O₃

37. Ionic: AlCl₃, LiF, BaCl₂, KF, KCN, Zn(NO₃)₂

38. Ions: [Al³⁺, Cl^- ], [Li⁺, F^- ], [Ba²⁺, Cl^- ], [K⁺, F^- ], [K⁺, CN^- ], [Zn²⁺, NO₃^- ]

FastCounter by LinkExchange