Percent Composition Problems: Be Sure to Show ALL of Your Work

Nomenclature Worksheet #1

(Percent Composition Problems)

Percent Composition Problems: Be sure to show ALL of your work!!!

1. Calculate the percent composition of the following:

(a) iron (III) oxide, Fe2O3

(b) ammonium nitrate, NH4NO3

(d) calcium sulfate, CaSO4

(e) lithium phosphate, Li3PO4

(f) magnesium hydroxide, Mg(OH)2

2. Determine the percent of sodium in sodium sulfate, Na2SO4.

3. Determine the percent carbon in calcium carbonate, CaCO3.

4. Determine the percent oxygen in potassium chlorate, KClO3.

In a 75.0 gram sample of potassium chlorate what mass is oxygen?

5. Determine the percent oxygen in potassium chlorite, KClO2.

In a 75.0 gram sample of potassium chlorite what mass is oxygen?

Nomenclature Worksheet #2 (BMC and BIC)

Binary Molecular Compounds Naming and Formula Writing

Write the correct name for the following compounds.

1. KrF2

2. BrCl5

3. SCl4

4. PF3

5. CO

6. PCl5

7. As4O10

8. BrO3

9. BN

10. N2O3

11. NI3

12. SF6

13. XeF4

14. PCl3

15. P2O5

16. S2Cl2

17. ClO2

18. SiO2

19. BF3

20. N2S5

21. CO2

22. SO3

23. XeF6

24. ICl2

25. SO2

26. P4O10

27. SF6

28. OF2

29. XeO3

30. AsO4

Write the correct formula for the following compounds.

1. sulfur tetrachloride

2. xenon trioxide

3. carbon dioxide

4. diphosphorous pentoxide

5. phosphorous trichloride

6. sulfur dioxide

7. bromine pentafluoride

8. disulfur dichloride

9. chlorine monoxide

10. oxygen difluoride

11. boron trichloride

12. dinitrogen pentasulfide

13. silicon tetrachloride

14. krypton difluoride

15. chlorine monoiodide

16. silicon dioxide

17. sulfur trioxide

18. dinitrogen trioxide

19. phosphorus trichloride

20. carbon monoxide

21. boron monophosphide

22. dinitrogen monoxide

23. nitrogen trifluoride

24. dinitrogen monoxide

25. xenon hexafluoride

26. sulfur hexafluoride

27. phosphorous pentachloride

28. nitrogen monoxide

29. boron trifluoride

30. tetraarsenic decoxide

Worksheet #2 Continued - Binary Ionic Compounds Naming and Formula Writing

Write the correct name for the following compounds.

1. BaCl2

2. NaBr

3. MgF2

4. Na2O

5. SrS

6. BeO

7. NaI

8. SrF2

9. CaF2

10. Al2O3

11. BaCl2

12. Li2S

13. RaCl2

14. CaO

15. RbI

16. CaBr2

17. LiI

18. MgS

19. KBr

20. Ba3N2

21. Sr3P2

22. BeBr2

23. AlP

24. K2S

25. LiBr

26. AlN

27. K2O

28. AgCl

29. PbO

30. Ag2S

31. FeCl3

32. CuF

33. FeO

34. Fe2O3

35. Sn3P4

36. Cu3P

37. Na3P

38. K2S

39. SrI2

40. Al2S3

Write the correct formula for the following compounds.

41. sodium oxide

42. magnesium iodide

43. lithium chloride

44. beryllium bromide

45. aluminum sulfide

46. calcium bromide

47. beryllium oxide

48. strontium sulfide

49. calcium fluoride

50. magnesium oxide

51. lithium bromide

52. calcium nitride

53. calcium fluoride

54. potassium iodide

55. strontium chloride

56. sodium sulfide

57. radium bromide

58. magnesium sulfide

59. cesium sulfide

60. potassium chloride

61. strontium phosphide

62. barium iodide

63. rubidium oxide

64. calcium iodide

65. cesium oxide

66. calcium fluoride

67. aluminum oxide

68. iron (III)oxide

69. iron (II) oxide

70. lead (II) nitride

71. lead (IV) oxide

72. tin (IV) iodide

73. tin (II) iodide

74. copper (II) fluoride

75. copper (II) bromide

76. plumbic phosphide

77. copper (I) fluoride

78. copper (I) oxide

Nomenclature Worksheet #3 (TIC and Acids)

Name the following ternary ionic compounds (TIC):

1 ______Al(ClO)3 8______Ba(NO3)2

2 ______KHSO4 9 ______Cu2SO3

3 ______Pb(C2O4)2 10 ______Cu(MnO4)2

4______Ba(OH)2 11 ______LiNO3

5 ______CaCr2O7 12 ______Fe(NO2)2

6______(NH4)3PO4 13 ______K2Cr2O7

7______Al(ClO3)3 14 ______CuClO4

Write the formulas for the following ternary ionic compounds (TIC):

15.______copper (I) sulfite 23. Barium perchlorate ______

16.______tin (II) chromate 24. calcium acetate ______

17.______cesium bisulfite 25. iron (II) cyanide ______

18 .______iron (III) oxalate 26. potassium oxalate ______

19.______potassium nitrite 27.______lead (II) nitrate

20.______silver sulfate 28.______barium sulfite

21.______strontium carbonate 29.______tin (IV) chlorate

22.______ammonium oxalate 30.______iron (III) sulfate

Write the names of each of the following acids: Write correct formulas for these acids:

31______HClO4 36______sulfuric acid

32______H3PO4 37______nitric acid

33______HCl 38______hydroiodic acid

34______HF 39______chromic acid

34______H3PO3 40______oxalic acid

Mixed Review: Write the names or formulas for the following compounds:

41______CaF2 42______sin (II) sulfide 43______KOH

44______potassium acetate 45______HNO3 46______FrNO3

47______phosphoric acid 48______Al2O3 49______HI

50______cesium nitride 51______copper (I) oxide

52______magnesium bisulfate 53______barium permanganate

54______sulfuric acid 55______Cu3(PO4)2

Nomenclature Test Review

Read notes carefully. Study all worksheets.

1. Explain the following terms: valence electrons and the Octet Rule

2. Draw electron dot structures for the following atoms or ions:

Rb atom, Rb ion, Be atom, Be ion, Kr atom, Br atom, Br ion, C atom

3. Transition metals often form ______ions because they have valence electrons in the s and d sublevel.

4. Name 5 ions that have the same electron configuration:

5. Ionic compounds are formed when electrons are ______. (shared or transferred) Covalent compounds are formed when electrons are ______. (shared or transferred)

Naming and Writing Formulas for BIC, TIC, and Acids –Make sure you know the polyatomic ions and their charges.

6______SrO 22______potassium sulfide

7______KNO2 23______tin (II) oxide

8______CuF2 24______sulfuric acid

9______HClO4 25______lead (IV) oxide

10______Al2(CO3)3 26 ______calcium perchlorate

11______H3PO4 27 ______aluminum bromide

12______HCl 28 ______copper (II) permanganate

13______Li3N 29 ______strontium phosphide

14______PbSO3 30 ______nitric acid

15______BeBr2 31 ______iron (III) bromide

16______HF 32 ______ammonium sulfite

17______Pb(CO3)2 33______iron (II) oxalate

18______(NH4)2Cr2O7 34______silver dichromate

19______CuO 35______aluminum permanganate

20______Ca3(PO3)2 36______barium sulfide

21______Cu2CrO4 37______sodium bromide

a. SO3 b. CO c. OF2 d. N2O3 e. NO3

f. PI3 g. N2S5 h. phosporus nonabromide

i. carbon tetrachloride j. disulfur dioxide k. nitrogen trioxide

l. sulfur dioxide m. dichlorince monoxide n. oxygen pentanitride

For credit, you MUST show all work. Answers are in parentheses at the end of some problems.

44. Calcium dihydrogen phosphate is an important fertilizer. What is the percent phosphorous in Ca(H2PO4)2?

45. What is the percent composition by mass of iron (II) nitrite? (Answer: 37.84% Fe, l8.92%N, 43.24% oxygen)

46. Determine the percent oxygen in potassium sulfate.

In a 125.0 gram sample of potassium sulfate what mass is oxygen?

47. Determine the percent oxygen in potassium sulfite.

In a 125.0 gram sample of potassium sulfite what mass is oxygen?