AP Chemistry U3-4 Daily Answers

1.B

2.B

3.A

4.C

5.A

6.C

7.A

8.B

9.D

10.A

11.A

12.C

13.A

14.A

15.A

16.B

17.D

18.B

19.D

20.A

21.B

22.10.81 Boron

23.S 32.06

24.20-90.37%, 22-9.37%

25.28-92.21%, 29-29.01%

26.4.98 X 10^-22 moles, 6.98 X 10^-21 grams

27.3.06 X 10²¹ atoms

28.0.167 moles, 1.01 X 10²³ atoms

29.1.26 grams

30.205 g

31.223.1 g, 35.0 g, 152.2 g, 345.1 g, 508.3 g, 729.8 g

32.169.46 g/mole, 275.87 g/mole

33.1.28 g

34.3.6 X 10²⁴, 6.0 X 10²², 1.5 X 10²³

35.1.8 X 10²⁴, 3.7 X 10²², 1.5 X 10²³

36.4.24 X 10^-2 moles

37.85 g, 21 g, 2.2 X 10²³

38.137.96 g, 31.29 g, 6.99 X 10²³ atoms, 4.81 X 10² g

39.K-17.91%, Al-12.36%, Si-25.74%, O-43.99%

40.C-74.03%, H-8.7%, N-17.27%

41.CH₅N

42.NH₂, N₂H₄

43.C₃HCl, C₁₂H₄Cl₄

44.MoOCl₃

45.N₂O, CuO, CO, KClO₃, HCN

46.Al

47.2,1,1,2-1,1,1,4-1,3,3,1-1,2,1,4-1,6,3,2-3,1,2,1

48.1,KOH,1,1-3CaCl₂,2,1,6-1,2HCl,1,2-2NaBr,1,2,1

49.21.99 g

50.17.12 g

51.91.2 g

52.565.3 g, 226.4 g

53.121.1g

54.120 g

55.36.8 g, 10,3,3,10

56.97.214 g, lead (II) nitrate, 12.771 g, 82.31%

57.71.64 g, silver nitrate, 47.27 g, 20.62%

58.1166 g, chloral, 401 g, 17.1%