Name: Mods: Date Agenda Homework

Transcription

1 Name: Mods: UNIT 6 FORMULA WRITING, FORMULA WEIGHTS, and PERCENT COMPOSITION Date Agenda Homework Wed Dec 3 Thurs Dec 4 Fri Dec 5 Mon Dec 8 Tues Dec 9 Wed Dec 10 (1/2 Day) Thurs Dec 11 Fri Dec 12 Mon Dec 15 Tues Dec 16 Wed Dec 17 Thurs Dec 18 Fri Dec 19 Mon Dec 22 Tues Dec 23 (1/2 Day) Go over test Notes Formula writing (slides 18) Worksheet #1 Quiz Symbols Go over HW Worksheet Go over HW questions Quiz Binary ionic compounds Notes Formulas with polyatomic ions (slides 912) Quiz Formula writing with polyatomics Notes Formulas for covalent molecules (slides 1318) Notes Formula weights and percent composition (slides 1929) Quiz Formula writing (All) Go over HW Quiz Formula weights PreLab Percent Oxygen in Potassium Chlorate Lab % M&M's and % sugar in gum Worksheet #6 Lab % oxygen in potassium chlorate Post lab discussion (potassium chlorate) Notes Hydrates (slides 3035) PreLab Percent water in a hydrate Lab % water in copper sulfate pentahydrate Go over HW Worksheet #7 Lab questions? Lab/Hydrates quiz Go over Review Worksheet #8 **If you will be absent on Monday Dec 22, it is HIGHLY recommended you take your unit test during this time** Test formula writing, formula weights and percent composition Holiday Activity Read pgs , , Review symbols Finish Worksheets #1 (pgs 45) Worksheet #2 Formula writing (pg 6) Quiz tomorrow (Binary Ionic) Read pgs and Formula writing Worksheet #3 (pg 79) Review Worksheet #4 (pg 1012) Worksheet #5 (1315) Quiz tomorrow Formula writing Worksheet #5 Calculate the percent of the underlined element Quiz tomorrow Formula weights Problems pg 167, #67 and 68 Read pg 188 Lab report with calculations Problems pg 167, #6971 Finish Worksheet #6 (pg 1617) Finish lab after school, if needed Problems pg 198, # 60 and 61 Finish Prelab, if needed Worksheet #7 (pg 18) Finish lab calculations Quiz tomorrow (Hydrates) Review Worksheet #8 (pgs 1921) Study for test Have a WONDERFUL break! Page 1

2 CHEMISTRY SYMBOLS **Do you remember these?** ALUMINUM ANTIMONY ARGON ARSENIC BARIUM BISMUTH BORON BROMINE CADMIUM CALCIUM CARBON CESIUM CHLORINE CHROMIUM COBALT COPPER FLUORINE FRANCIUM GOLD HELIUM HYDROGEN IODINE IRON KRYPTON LEAD LITHIUM MAGNESIUM MANGANESE MERCURY NEON NICKEL NITROGEN OXYGEN PHOSPHORUS PLATINUM POTASSIUM RADIUM RADON SILICON SILVER SODIUM STRONTIUM SULFUR TIN TITANIUM TUNGSTEN URANIUM XENON ZINC Page 2

3 Important Ions to get to know! Monatomic Ions Positive: H + Hydrogen ion Be +2 Beryllium ion B +3 Boron ion Li + Lithium ion Mg +2 Magnesium ion Al +3 Aluminum ion Na + Sodium ion Ca +2 Calcium ion Au +3 Gold ion K + Potassium ion Ba +2 Barium ion Cs + Cesium ion Ni +2 Nickel ion Ag + Silver ion Zn +2 Zinc ion Negative: H Hydride O 2 Oxide N 3 Nitride F Fluoride S 2 Sulfide P 3 Phosphide Cl Chloride Br Bromide I Iodide Multivalent Ions Cu +1 Copper I Fe +2 Iron II Sn +2 Tin II Cu +2 Copper II Fe +3 Iron III Sn +4 Tin IV 2+ Hg 2 Mercury I Co +2 Cobalt II Pb +2 Lead II Hg +2 MercuryII Co +3 Cobalt III Pb +4 Lead IV Cr +2 Chromium II Cr +3 Chromium III Polyatomic Ions Positive: NH4+ Ammonium ion Negative: C 2 H 3 O 2 Acetate 2 CO 3 CN Cyanide 2 O 2 OH Hydroxide 2 SO 3 MnO 4 Permanganate 2 SO 4 ClO Hypochlorite 2 CrO 4 ClO 2 Chlorite 2 Cr 2 O 7 ClO 3 Chlorate 2 C 2 O 4 ClO 4 Perchlorate 2 HPO 4 NO 2 Nitrite NO 3 Nitrate BrO 2 Bromite BrO 3 Bromate HCO 3 Hydrogen Carbonate HSO 4 Hydrogen Sulfate IO 3 Iodate 3 Carbonate PO 4 Peroxide Sulfite Sulfate Chromate Dichromate Oxalate Hydrogen Phosphate Phosphate Page 3

4 Worksheet #1: CRISS CROSS METHOD FOR WRITING FORMULAS Write the formula and name for the following compounds. IONS Na + Ca +2 Al +3 Fe +2 NH 4 +1 Cl 1 O 2 N 3 NO 3 1 SO 4 2 CO 3 2 PO 4 3 OH 1 Page 4

5 (Worksheet #1, con) Write the formula for each compound. IONS fluoride sulfide nitrite sulfite acetate potassium silver ammonium iron III barium strontium lithium Page 5

6 Worksheet #2: NAMING BINARY COMPOUNDS Name the following binary compounds 1. BaCl 2 2. NaF 3. Ag 2 O 4. CuBr 5. CuBr 2 6. FeO 7. Fe 2 O 3 8. MgS 9. Al 2 O CaI K 2 S 12. CrCl CrCl CaO 15. Ba 3 P NaCl 17. Na 2 O 18. BeS 19. MnO 20. Mn 2 O 3 Page 6

7 Worksheet #3: WRITING FORMULAS FROM NAMES Write the formulas of the following compounds. Write the ions on the first line and then criss cross to get the formula on the second line. 1. ammonium phosphate 2. iron (II) oxide 3. iron (Ill) oxide 4. carbon monoxide 5. calcium chloride 6. potassium nitrate 7. magnesium hydroxide 8. aluminum sulfate 9. copper (II) sulfate 10. lead (IV) chromate 11. diphosphorus pentoxide 12. potassium permanganate 13. sodium hydrogen carbonate 14. zinc nitrate 15. aluminum sulfite Page 7

8 (Worksheet #3, con) Name the following ionic compounds 1. CaCO 3 2. KCl 3. FeSO 4 4. LiBr 5. MgCl 2 6. FeCl 3 7. Zn 3 (PO 4 ) 2 8. NH 4 NO 3 9. Al(OH) CuC 2 H 3 O PbSO NaClO CaC 2 O Fe 2 O (NH 4 ) 3 PO NaHSO Hg 2 Cl Mg(NO 3 ) CuSO ZnSO 4 Page 8

9 (Worksheet #3, con) Write the formulas or names the following transition metal compounds (ions on the first line, compound/name on the second line). 1. Iron (II) Hydroxide 2. Cobalt (III) chlorate 3. Chromium (II) nitrate 4. Copper (I) sulfate 5. Tin (II) carbonate 6. Cr(PO 4 ) 7. Co 3 (PO 4 ) 2 8. Fe(OH) 3 9. Pb(NO 3 ) Co(C 2 H 3 O 2 ) Copper (I) cyanide 12. Copper (II) nitrite 13. Lead (IV) carbonate 14. Chromium (III) sulfate 15. Lead (II) chromate Page 9

10 Worksheet #4: Review Formula Writing Symbols 1. Ca 11. Ar 2. S 12. Si 3. Mg 13. Fe 4. Co 14. Au 5. Ni 15. Cu 6. Boron 16. Nitrogen 7. Oxygen 17. Carbon 8. Aluminum 18. Barium 9. Zinc 19. Cesium 10. Bromine 20. Rubidium What is the charge on each of the ions? 21. Hydrogen 24. Bromide 22. Nitrogen 25. Oxide 23. Aluminum 26. Beryllium Write the formulas or names for the following binary compounds 27. lithium sulfide 28. beryllium fluoride 29. magnesium oxide 30. cesium phosphide 31. barium bromide 32. BeF K 2 O 34. Li 3 P 35. NaCl 36. CaO Page 10

11 Write the formulas or names for the following compounds 37. magnesium chlorite 38. aluminum oxide 39. barium hypochorite 40. sodium sulfate 41. ammonium carbonate 42. (NH 4 ) 2 (C 2 O 4 ) 43. Al 2 (SO 4 ) Be(NO 3 ) K 2 (CO 3 ) 46. Mg(NO 2 ) 2 Write the formula or name for the following transition metal compounds 47. iron (II) iodide 48. lead (II) sulfite 49. copper (I) sulfide 50. Ni 3 (PO 4 ) Cr(OH) 3 Write the formula or name for the following covalent compounds 52. carbon dioxide 53. oxygen difluoride 54. carbon tetrachloride 55. SO N 2 O 5 Page 11

12 Naming and writing formulas for common acids and bases 57. hydroiodic acid 58. iodic acid 59. sulfurous acid 60. nitric acid 61 hypochlorous acid 62. HCl 63. H 2 SO HClO HNO H 3 PO 4 Page 12

13 Worksheet #5: Formula Weight Write the names of formulas for the following compounds and then calculate the formula weight (show all work!!!) 1. cesium phosphide 2. barium bromide 3. BeF 2 4. K 2 O 5. sodium sulfate Page 13

14 6. ammonium carbonate Do mass percent for carbon 7. (NH 4 ) 2 (C 2 O 4 ) 8. Al 2 (SO 4 ) 3 9. lead (II) sulfite 10. copper (I) sulfide 11. Ni 3 (PO 4 ) 2 Page 14

15 12. Cr(OH) oxygen difluoride 14. carbon tetrachloride 15. SO N 2 O 5 Page 15

16 Worksheet #6 Formula Weights, Mass Percent and Hydrates 1. Calculate the formula weight of Ca 3 (PO 4 ) 2 2. Calculate the percent of calcium in Ca 3 (PO 4 ) 2 3. Calculate the formula weight of CaCl 2 * 2H 2 O 4. Calculate the percent of water in CaCl 2 * 2H 2 O Page 16

17 5. Calculate the percent of sugar in gum from the following data: Mass of gum before chewing = 4.26g Mass of gum after chewing = 1.08g Mass of sugar= Percent sugar in gum= 6. Calculate the percent of oxygen in KClO 3 Mass of KClO 3 = 3.91g Mass of KCl = 2.38g Mass of oxygen= Percent oxygen in KClO 3 = Actual percent oxygen in KClO 3 = Percent Error= Page 17

18 Worksheet #7: Mass Percent of Hydrates SHOW ALL WORK!! For each of the following: Calculate the mass percent of water in each of the following hydrates. 1. Na 3 (PO 4 ) 5H 2 O 2. AlCl 3 4H 2 O 3. Na(NO 3 ) 8H 2 O Page 18

19 Worksheet #8 Review Formula Writing, Formula Weights and Percent Composition Write the symbols or the name and charge of the atom: 1. Sb 2. Na 3. Cu 4. Mg 5. Ni 6. N 7. Co 8. C 9. Zinc 10. Gold 11. Silver 12. Mercury 13. Helium 14. Hydrogen 15. Neon 16. Oxygen Write the formulas for the following compounds: (ions on first line, formula on second) 17. Barium sulfate 18. Magnesium oxide 19. Hydrogen phosphate 20. Lithium perchlorate 21. Ammonium bromite 22. Calcium iodide 23. Zinc hydrogen carbonate 24. Gold peroxide 25. Potassium chromate 26. Mercury (II) chlorate Page 19

20 Write the name of the compound and calculate the formula weight for the following. Then find the percent mass of each of the elements. 27. Na 2 SO (NH 4 ) 3 PO KOH 30. Li(NO 3 ) Page 20

21 31. Na 2 CO 3 10H 2 O 32. SrCl 2 6H 2 O Page 21