Survey of Chemistry II

Principles of Chemistry I

Principles of Chemistry II

1 MODULE 9 UNIT 2 Assignment Part A 1. Identify each of the following compounds as an alcohol, aldehyde, ether, ketone, carboxylic acid or ester.(1 mark each) a. Alcohol b. Carboxylic acid c. Ester d. Ester e. Ester 2. Identify each of the following compounds as a primary, secondary or tertiary alcohol. Hint: draw the structural formula before answering. (2 marks each) a) 3-methyl-1-butanol: primary b) 2-methyl-1-butanol: primary c) 3-methyl-2-butano: secondary d) 2-methyl-2-butanol: tertiary 3. Name and write the formula of the alcohol contained in alcoholic beverages such as wine. 2 marks 2 Ethanol CH3CH2OH 4. Explain the poor solubility of long chain alcohols. 1 mark It is known that molecules are most soluble in solvents that have similar electronic properties. Long chain alcohols have a polar end and OH groups that can theoretically bond to other OH groups and water. However, the very long non-polar alkane portion of the molecule dominates, and these molecules behave as if they were pure alkanes, which gives them much greater solubility in non-polar solvents and very little solubility in solvents such as water. 5. Name each compound.(2 marks each) a. CH 3 CH 2 CH 2 CH 2 OH 1-butan-2-ol b. 3-methylpropan-2-pentanol c. 2-methylpropanol; tert-butyl acohol d. 4-methyl- 2-hexonol e. Pantanoic acid 3 f. 3-hexanone; ethyl propyl ketone 4 g. butanoic acid h. Propanoic acid i. CH 3 CH 2 -COOH Propanoic acid 6. Identify the functional group each of the organic compounds involved in the reactions below belongs to. Then, name it. 6 marks Compound Functional Group Name CH3 -OH Methanol HCHO -CHO Formaldehyd e HCOOH -COOH Formic Acid 7. Identify the type (primary, secondary or tertiary) of the following alcohols. Then, write the formula and name of the product(s), if any, of their oxidation. a. 3 marks Secondary 2-ethyl, 4 pentanol C7H15OH Products: CO2 and H2O 5 b. 3-ethyl-3-pentanol 2 marks 6 Tertiary C7H16 O Products: CO2 and H2O Total for Assignment Part A 45 marks Submission Instructions Submit your assignment using the drop box on the Assignment page for this unit.

CHEM | 1152 | Survey of Chemistry II | homework | 1 MODULE 9 UNIT 2 Assignment P

MODULE 1 UNIT 1 Assignment Part C 1. Describe a method that could be used to separate the components of the following (2 marks each): a) Sand and iron ﬁlings can be separated by magnetic separation because the iron ﬁllings are magnetic b) Sawdust and lead pellets can be separated by ﬂoatation because the sawdust will ﬂoat while the lead pellets will sink c) Salt and glass particles can be separated by decantation because the salt will dissolve but the glass will not. d) Silt (water and ﬁne soil particles) can be separated by decantation; the ﬁne soil particles will be separated from the water and turned into mud that can be removed. e) Alcohol and water can be separated by distillation because these two have diﬀerently boiling points. So by boiling, water will be removed, leaving the alcohol. 10 marks Before attempting the following experiment, read the whole explanation and observe the accompanying diagram. 2. Dissolve a tablespoon of sugar in a saucepan containing about 3 cm of water. Put at least 6 ice cubes in another clean and dry saucepan. Heat the ﬁrst saucepan, and when the water comes to a rolling boil, hold the second saucepan tilted over the escaping water vapour, after having placed a third container (preferably a glass) underneath it, as shown in the diagram. Do this until a few drops of liquid are deposited in the glass. a) Note everything you observe during the heating process. After a couple of minutes observing the water over the heat, bubbles arose and the water started to boil. I placed the second saucepan with 6 cubes of ice over it and noticed the vapour that met with the bottom of the second pan was creating condensation. When I tilted the second pan over a glass, it began to drip into it. The sugar seemed to be left in the bottom of the pan. b) Taste the liquid that has been deposited in the glass and note your observations. Tasted like regular water, no sugar was present (assuming it stayed in the pan and did not evaporate) c) What do you call the process you’ve just observed? Distillation d) Explain what happened during the process. As the sugar water boiled, the water vapour created condensation, which led to water droplets into the empty glass. The sugar however remained in the ﬁrst pan, and thus separated the water and sugar particles. 11 marks Total 21 marks Total for Assignments Module 1 Unit 1: 93 marks Submission Instructions Submit your assignment (in Microsoft Word format) using the drop box on the Assignment page for this unit.

CHEM | 1152 | Survey of Chemistry II | homework | MODULE 1 UNIT 1 Assignment Par

MODULE 2 UNIT 3 Assignment Part B 1. Select which of the following bonds between a pair of elements you predict to be the most polar? Explain your answer. 2 marks a. Cl and B Cl b. F and C 4.0-3.0=1.0, this bond is the most polar because fluorine is the most electronegative element and it has the highest electronegativity number. F and C also have the biggest different. c. C and I Equal 2. Calculate the difference in electronegativity between the atoms participating in covalent bonds for each of the following compounds. Then, select the choice corresponding to the correct structural diagrams for each. You should check the polarity of each bond and the net polarity of the molecule. If the molecule is non- polar, indicate zero for the net polarity. (2 marks each) a) PBr 3 2.8-2.1=.7 The difference in electronegativity is 0.7. i) ii) The second one is correct iii) b) TeI 2 2.5-2.1=0.4 The difference in electronegativity 0.4 i) ii) iii) This one is correct c) NFCl 2 3.0-3.0=0 4.0-3.0=1 The electronegativity is 1 i) ii) This one is correct iii) d) CCl 2 F 2 3.0-3.0=0 4-2.5=1.5 the difference in electronegativity is 1.5 i) This one is correct ii) iii) e) C 2 H 6 or CH 3 CH 3 2.5-2.1=0.4 The electronegativity is 0.4 i) ii) This one is correct iii) Total 12 marks Submission Instructions Submit your assignment using the drop box on the Assignment page for this unit. https://olmoodle.ontariolearn.com/mod/resource/view.php?id=348952

CHEM | 1152 | Survey of Chemistry II | homework | MODULE 2 UNIT 3 Assignment Par

MODULE 4 UNIT 2 Assignment Part A Write the formulas for compounds 1 to 15 and the names of the compounds represented by formulas 16 to 30. 1. Silver nitrate AgNO 3 2. Tin (IV) sulphate SnSO 4 3. Iron (III) nitrate Fe(NO 3 ) 3 4. Copper (II) carbonate CuCO 3 5. Lead (II) phosphate Pb 3 (PO 4 ) 2 6. Mercury (I) nitrate Hg(NO 3 ) 2 7. Sodium chlorate NaClO 3 8. Caesium phosphate Cu 3 P 2 9. Calcium acetate Ca(C 2 H 3 O 2 ) 2 10. Zinc nitrate Zn(NO 3 ) 2 11. Aluminium sulphate Al 2 (SO 4 ) 3 12. Lithium chlorate LiClO 3 13. Copper (II) phosphate Cu 3 (PO 4 ) 2 14. Mercury (I) chlorate Hg 2 (ClO 3 ) 2 15. Sodium carbonate NaHCO 3 16. CuSo 4 Copper Sulfate 17. Mg(NO 3 ) 2 Magnesium Nitrate 18. CaSO 4 Calcium Sulfate 19. Zn(C 2 H 3 O 2 ) 2 Zinc Acetate 20. AlPO 4 Aluminium Phosphate 21. RbNO 3 Rubidium Nitrate 22. HgCO 3 Mercury Carbonate 23. K 2 SO 4 Potassiun sulfate 24. Sn 3 (PO 4 ) 4 Tin (IV) phosphate 25. CaCO 3 Calcium Carbonate 26. Li 2 SO 4 Lithium sulfate 27. CuNO 3 Copper Nitrate 28. Ag 2 SO 4 Silver sulfate 29. BaSo 4 Barium sulfate 30. K 3 PO 4 Potassium phosphate Total 30 points Submission Instructions Submit your assignment using the drop box on the Assignment page for this unit.

CHEM | 1152 | Survey of Chemistry II | homework | MODULE 4 UNIT 2 Assignment Par

MODULE 4 UNIT 2 Assignment Part B Find the formulas or the corresponding names, as the case may be. 1. Sodium acetate = NaC 2 H 3 O 2 2. Aluminium hydroxide = Al (OH) 3 3. Manganese (IV) sulphite =Mn 3 (SO 3 ) 4 4. Chromium (II) periodate =Cr(BrO 3 ) 6 5. Potassium hypochlorite = KClO 3 6. Iron (III) hydroxide = Fe 2 (OH) 3 7. Mercury (I) carbonate = Hg 2 CO 3 8. Strontium bromite = SrBr 2 9. Barium nitrite = Ba(NO 2 ) 2 10. Zinc carbonate = ZnCO 3 11. Silver persulphate = Ag 2 S 2 O 8 12. Copper (I) hydroxide = Cu(OH) 2 13. Magnesium carbonate= MgCO 3 14.Barium perbromate = Ba(Br0 4 ) 3 15. Iron (II) nitrate = Fe(NO 3 ) 2 16. PbSO 4 =Lead (II) sulfate 17. Ca(NO 2 ) 2 = Calcium nitrate 18. Rb 3 PO 5 =Rubidium Perphosphate 19. LiBrO 2 =Lithium Bromite 20. Mg(OH) 2 =Magnesium Hydroxide 21. (NH 4 ) 3 PO 3 = Ammonium Phosphite 22. KNO 2 = Potassium Nitrie 23. CaSO 3 =Calcium Sulfite 24. Cr(BrO 2 ) 2 =Chromium (II) Hypobromite 25. MgSO 5 =Magnesium Persulfate 26. Zn(NO 2 ) 2 =Zinc Nitrite 27. Ca 3 (PO 3 ) 2 = Calcium Phosphate 28. CsIO 4 = Caesium Iodide 29. BaCO 3 = Barium Carbonate 30. Fe(OH) 3 = Iron Hydroxide Total 30 points Submission Instructions Submit your assignment using the drop box on the Assignment page for this unit.

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