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Tustin HS AP Chemistry SUMMER ASSIGNMENT Instructor: Email: Textbook: Ms. Abbey Zinsser [email protected] or [email protected] Chemistry: The Central Science, Brown, LeMay, Bursten, 11th edition (2006). Publisher: Prentice Hall ISBN # 978 013 600 6176 Due Date: 1st day of school (September 1st, 2015) In order to complete the summer assignment you will need to have access to the textbook. A copy of the textbook is available for use on Haiku or for checkout at the library. Assignment: The assignment is divided into 7 modules. Each module (except for Module 01) will be collected on the first day of school. I suggest you complete one to two modules a week and pace yourself throughout the summer. Failure to complete this assignment may result in removal from the course. Module Topic 01 Polyatomic Ion Memorization 02 Rounding & Significant Figures Module 02 Worksheet 15 03 Naming Ionic & Covalent Compounds Module 03 Worksheet 40 04 Naming Acids Module 04 Worksheet 20 Chapter 1 Cover Sheet with Notes 40 Textbook Problems 20 Chapter 2 Cover Sheet with Notes 40 Textbook Problems 25 Chapter 3 Cover Sheet with Notes 40 Textbook Problems 30 05 06 07 Submit… Nothing…you will be quizzed on the 2nd day of school Chapter 1 Chapter 2 Chapter 3 TOTAL 1 Point Value 40 quiz points 270 Modules: For Module 01: Nothing to turn in, but TEST on POLYATOMIC IONS on 2nd day of School. DON’T PROCRASTINATE!! For Modules 02-04: Module Worksheets will be collected For Modules 05-07: You will need access the textbook through Haiku or checkout from the library o You will be turning in Chapter 1-3 coversheets along with notes and bookwork. o Title the assignment with Chapter # & problem numbers. Example: Chapter 1 #1, 7, 11, etc. o SHOW ALL WORK, including units and dimensional analysis where appropriate o Refer to the examples within in the textbook for help o You may also email me for help; I will get back to you as soon as I can. Scoring: Passing score: 190/270 (70%) o Each question will be graded for accuracy and/or completion. To receive maximum score: o Show all work. No work = no credit. If you aren’t sure what kind of work to show, view the examples. o All answers must be written in the boxes to the right with units (when given) and correct significant figures. o Submit on time on the first day of school. Agenda for the First Week of School: Day, Date 01 02 03 04 05 06 Agenda Summer Assignment due Review syllabus Ion Memorization Test Review Safety Tuesday 09/01/15 Wednesday 09/02/15 Thursday 09/03/15 Review summer assignment Friday 09/04/15 Review summer assignment Monday 09/07/15 Review summer assignment Tuesday 09/08/15 Unit 01 Test 2 MODULE 01: Common Ions to KNOW!! This part of the summer assignment is quite simple. Just give yourself enough time to master the formulas, charges and names of the common ions. On the 2nd day of school, you will be given a quiz on these ions. You will be asked to: Write the names of these ions given the formula and charge Write the formula and charge when given the names TABLE 1: Ionic Charges of Representative Elements Cations: Full Name 1 + Li Na+ K+ Rb+ Cs+ 2 3-11 12 13-14 2+ Be Mg2+ Ca2+ Sr2+ Ba2+ 3+ Al 2+ + Ag Zn Cd2+ Anions: End in “-ide” 15 16 17 3- 2- - N P3- O S2Se2- 18 F ClBrI- “From the Table” Ions: For the ions in Table 1, their placement in the Periodic Table suggest the charge on the ion, since the neutral atom gains or loses a predictable number of electrons in order to obtain a noble gas configuration. This was a focus in first year chemistry, so if you are unsure what this means, get HELP BEFORE the start of the year. Three transition metals are also included (silver, cadmium and zinc). These three elements will always have the charge given in the table and should be also be memorized. You will have a periodic table to reference for this ion quiz, so the above ions should be quite easy. 3 Polyatomic Ions: The common ions in Table 2 need to be MEMORIZED. Below are a number of patterns that can be used to greatly reduced the amount of memorizing one must do. Hint 1: “-ate” ions have one more oxygen that the corresponding “-ite” ions, but the same charge. If you memorize the “-ate” ions, then you should also be able to memorize the “-ite” ions quite easily, and vice versa. Example: Sulfate is SO42-, so sulfite is the same charge with one less oxygen (SO32-) Example: Nitrate is NO3-, so nitrite is the same charge with one less oxygen (NO2-) Hint 2: If you know that a sulfate ion is SO42-, then to get the formula for hydrogen sulfate, you add a hydrogen ion to the front of the formula. Since hydrogen has a 1+ charge, the net charge on the new ion is less negative by one. Example: PO43→ HPO42→ H2PO4phosphate hydrogen phosphate dihydrogen phosphate Hint 3: Other prefixes: “Per-” indicates one more oxygen than the “–ate” form “Hypo-” indicates one less oxygen than the “–ite” form Example: ClO4→ ClO3- → ClO2- → ClOperchlorate chlorate chlorite hypochlorite The Halogens are all the same: F, Cl, Br, I all behave the same, so if chlorate is ClO3- , Bromate is …… BrO3- !!! Hint 4: Make FLASHCARDS to help with your memorization!! TABLE 2: Common Polyatomic Ions 1- charge Formula - Name 2- charge Formula 2- 3- charge Name Formula Name PO43PO33- H2PO4 C2H3O2HSO3HSO4HCO3- Dihydrogen Phosphate Acetate Hydrogen Sulfite Hydrogen Sulfate Hydrogen Carbonate HPO4 C2O42SO32SO42CO32- Hydrogen Phosphate Oxalate Sulfite Sulfate Carbonate NO2- Nitrite CrO42- Chromate NO3CNOHMnO4ClOClO2ClO3ClO4BrO3SCNIO3- Nitrate Cyanide Hydroxide Permanganate Hypochlorite Chlorite Chlorate Perchlorate Bromate Thiocyanate Iodate Cr2O72SiO32O22S2O32- Dichromate Silicate Peroxide Thiosulfate 4 Phosphate Phosphite 1+ charge NH4+ H3O+ Ammonium Hydronium MODULE 02: Rounding & Significant Figures NOTES: ROUNDING Definition Rounding involves reducing the number of digits in a number while still accurately representing the original number Example The number 4.9 is very close to 5. For simplicity or accuracy sake, we can round this number to 5. What are the 1. You may round to any “place” of a number. rules? 2. The place you are rounding is followed by a 0, 1, 2, 3, or 4, then you “round down” to the next number 3. The place you are rounding is followed by a 5, 6, 7, 8, or 9, then you “round up” to the next number Placements Given Round 24.45 to the nearest ones place EXAMPLES: ROUNDING Work Shown o Identify the ones place 24.45 Less than 5 24.00 573.67 Round 573.67 to the nearest hundreds place Greater than 5 600.00 1.483 Round 1.443 to the nearest tenths place Greater than 5 1.500 58.3382 Round 58.3382 to 3 decimal places Less than 5 58.3380 o Identify the hundreds place o If the number to the right of the hundreds place is greater than or equal to 5, then round up. o To round up, raise the hundreds place to the next number and use zeros for all other numbers o Identify the tenths place o If the number to the right of the tenths place is greater than 5, then round up. o To round up, raise the tenths place to the next number and use zeros for all other numbers rd o Identify the 3 decimal place o If the number to the right of this place is less than 5, then round down. o To round down, keep this place as it is and use zeros for all other numbers 24 600 1.5 58.338 nd 4.8998 Greater than 5 Round 4.8998 to 2 decimal places o If the number to the right of the ones place is less than 5, then round down. o To round down, keep the ones place as it is and use zeros for all the places to the right Final Answer 4.9000 5 o Identify the 2 decimal place o If the number to the right of this place is greater than 5, then round up. o To round up, raise this place to the next number and use zeros for all other numbers o If you have to round a 9 up, it becomes 0 and the # to the left increases by 1. 4.90 Definition NOTES: SIGNIFICANT FIGURES Significant figures are digits in a number that indicate the level of precision of a measuring device Example A ruler can only precisely measure based on each tick mark. In the following example, each tick mark represents 1/10 of a centimeter, or 0.1cm. So, the ruler can only precisely measure to the first decimal place but you can estimate the 2 nd decimal place to some degree of “confidence.” What are the rules? 1. All non-zero (1, 2, 3, 4, 5, 6, 7, 8, 9) digits are ALWAYS significant 2. All zeros are NOT significant, UNLESS a. Zero is between two other non-zero numbers b. Zero is at the end of the number AND has a decimal point (anywhere within the number) 3. Exact values have infinite significant figures. This includes… a. counting whole numbers (ie, counting the number of students in the classroom). b. some known relationships (ie, 12 in = 1 ft) Adding/Subtracting When adding or subtracting, you must always take the lowest number of significant figures AFTER the decimal place (or just the number of decimal places) Multiplying/Dividing When multiplying or dividing, you must always take the lowest number of significant figures before and after the decimal place Multi-step Algebra When adding/subtracting AND multiplying/dividing, you must keep track of your significant figures by rounding after each operation. Don’t forget your order of operations! PROBLEM TYPE Determining the number of significant figures Given EXAMPLES: SIGNIFICANT FIGURES Work Shown Final Answer o All non-zero digits are significant (Rule 1) o Zero is not in between two other numbers (Rule 2a) and it is not at the end of the number (Rule 2b) not significant 2 significant figures 0.56 0.56 4.560 4.560 o All non-zero digits are significant (Rule 1) o Zero at the end of the number AND with a decimal point is significant (Rule 2b) 4 significant figures 2205.2 2205.2 o All non-zero digits are significant (Rule 1) o Zero in between two other digits, 2 and 5 is significant (Rule 2a) 5 significant figures o All non-zero digits are significant (Rule 1) o Zero in between two other digits, 6 and 4 is significant (Rule 2a) o Zero in front of the number is not significant (Rule 2) 0.60436 0.60436 6 5 significant figures Adding and subtracting with significant figures 4.322 + 2.57 5.080 – 1.400 2.13 x 5.0 Multiplying and dividing with significant figures 4.322 +2.57 6.892 3 decimals 2 decimals 6.89 5 . 0 8 0 3 decimals + 1 . 4 0 0 3 decimals 6.480 6.480 2.13 x 5.0 10.65 504 ÷ 40 2 sig figs o Round answer to the smallest number of significant figures (2 sig figs) 6.480 3.7 x108 o Divide the two numbers (divide = fraction) o Count the number of significant figures for each of the two numbers being divided 3 sig figs 1 sig fig o Round answer to the smallest number of significant figures (1 sig fig) = 126 100 o Use the order of operations: simplify the parentheses first o When adding, significant figures are limited by the number of decimal places. 8.6 has 1 decimal place while 3.45 has 2 decimal places. Round to 1 decimal place o Multiply the 6.6 and 12.1 o When multiplying, significant figures are limited by the number with the lowest number of sig figs. 6.6 has 2 significant figures and 12.1 has 3 significant figures. Round to 2 significant figures. 6.6 (8.6+3.45) 6.6 (12.05) Multi-step algebra with significant figures o Subtract the two numbers o Count the number of decimal places for each of the two numbers being added o Answer should have the smallest number of decimal places (3 decimal places) 6.89 o Multiple the two numbers o Count the number of significant figures for each of the two numbers being multiplied 3 sig figs 11 5040 40 o Add the two numbers o Count the number of decimal places for each of the two numbers being added o Answer should have the smallest number of decimal places o Round to the lowest number of decimal places (2 decimal places) 6.6 (12.1) 6.6(8.6+3.45) 79.86 80. Decimal after the zero makes the zero significant (Rule 2b) 7 100 80. MODULE 03: Naming & Writing Chemical Compounds NOTES: Naming & Writing Ionic Compounds An ionic compound is formed between a metal and a nonmetal, or a cation ion (positive ion) and an anion (negative ion). How do I know it is an ionic compound? Naming Rule 1: Look at the cation first. If the cation has only one possible charge (Group 1, Group 2, Al, Ag, Cd, Zn) Write cation first Write anion last ending in –ide Examples: 1) CaCl2 Look at Ca first! ← Ca is in group 2 (only can have a charge of 2+) Chlorine become Chloride = Calcium Chloride 2) Al2O3 = Aluminum Oxide Naming Rule 2: Look at the cation first. If the cation has more than one possible charge (most transition metals, post-transition metals) Write cation first, write cation charge (as Roman Numeral) in parentheses Write anion last ending in –ide Charge of cation is based on charge balance Examples: 1) FeCl3 o Look at Fe first! ← Fe is a transition metal (can have a charge of 2+ or 3+) o To determine charge of Fe → look at Cl o Cl has a charge of 1o There are 3 Cl1- → overall negative charge of -3 o To balance a negative three, you must have a positive three o Fe must have a charge of 3+ →Iron(III) = Iron (III) Chloride 2) Cr2S3 o Look at Cr first! ← Cr is a transition metal (can have a charge of 2+ or 3+) o To determine charge of Cr → look at S o S has a charge of 2o There are 3 S2- → overall negative charge of -6 o To balance a negative six, you must have a positive six o The overall charge of Cr is +6, but there are 2 Cr’s , so each Cr will have a charge of +3 o Cr has a charge of 3+ →Chromium(III) = Chromium (III) Sulfide Naming Rule 3: When polyatomic ions are involved, follow Rules 1 & 2. Write full polyatomic name in place of cation or anion. Examples: 1) K2SO4 o Look at K first! ← K is in group 1 (only can have a charge of 1+) o Need to recognize SO4 as sulfate = Potassium Sulfate 8 2) CuCO3 o Look at Cu first! ← Cu is a transition metal (can have a charge of 1+ or 2+) o To determine charge of Cu → look at CO3 o You need to recognize CO3 as carbonate o CO3 has a charge of 2o There is one CO32- → overall negative charge of -2 o To balance a negative two, you must have a positive two o So, the overall charge of Cu is +2 o Cu has a charge of 2+ → Copper(II) = Copper (II) Carbonate Writing Rule 1: 1) Write the formulas for the cation and anion, including charges 2) Check to see if the charges are balanced o If balanced, just remove charges o If not balanced, continue with rule #3 3) Balance charges o Use parentheses if more than one polyatomic in is needed o Write subscripts if more than one ion is needed to balance o Use crisscross method to balance subscripts o Remove charges Example: 1) Barium nitrate Write the formulas: Ba2+ NO31 Think: Do +2 and -1 balance each other? NO!…. Ba2+ NO31- → Ba(NO3)2 NOTES: Naming Molecular Compounds A molecular compound is formed between a two nonmetals. Also known as a covalent compound. How do I know it is a molecular compound? Rule: For the 1st nonmetal: o Name the element o Use the prefix if there is more than one of that element For the 2nd nonmetal: o Name the element o Always include the prefix o Use –ide ending Example: NF3 o Two nonmetals! = covalent o First element: o Nitrogen → only one = no prefix o Second element: o Fluorine = fluoride o 3 of them = prefix “tri-“ = nitrogen trifluoride 9 Prefixes Used in Naming Molecular Compounds Prefix Number mono1 di2 tri3 tetra4 penta5 hexa6 hepta7 octa8 nona9 deca10 MODULE 04: Naming & Writing Acids What is an acid? Types of Acids NOTES: Naming & Writing Acids A form of ionic compound Hydrogen salt dissolved in water (aq) Binary: contains two elements o Hydrogen + nonmetal Oxyacid: contains oxygen o Hydrogen + polyatomic Naming & Writing Use prefix “ hydro” – root of nonmetal -- ic acid Binary Acids: Example #1: HCl Hydro – Chlor- ic Acid → Hydrochloric Acid Example #2: Hydrofluoric Acid HF Naming & Use root of anion (polyatomic) then check ending Writing Oxyacids Polyatomic ends in –ate Root –ic acid Polyatomic ends in –ite Root –ous acid Example #1: HNO3 HNO3 →Nitrate→ ends in -ate→ root-ic →Nitric Acid Example #2: HNO2 HNO2 →Nitrite→ ends in -ite→ root-ous →Nitrous Acid Example #3: Sulfuric Acid Sulfuric → ends in –ic → polyatomic must end in –ate → sulfate Two H+ must balance -2 charge on sulfate ion, SO42→H2SO4 10 MODULE 02: Rounding & Significant Figures Worksheet Question 1. Round 729.5005 to three decimal places. Final Answer 2. Round 9.4514 to two decimal places. 3. Round 5.3798 to the thousandths place. 4. Round 0.00023350 to three significant figures. 5. Round 364080.22 to five significant figures. 6. How many significant figures are in the number 50200? 7. How many significant figures are in the number 0.00045080? 8. There are 59 students enrolled in AP Chemistry. How many significant figures does this reflect? 9. Add 3.207 and 4.70 and report the answer with the appropriate significant figures. 10. Subtract 0.0279 from 0.10 and report the answer with the appropriate significant figures. 11. Find the product of 45.03 and 0.798 and report the answer with the appropriate significant figures. 12. Divide 1080. and 40. and report the answer with the appropriate significant figures. 13. Calculate the following and report the answer with the appropriate significant figures: (3.95 + 4.50) 10. 14. Calculate the following and report the answer with the appropriate significant figures: (13.9)(0.0058) (978 − 863.7) 15. Calculate the following and report the answer with the appropriate significant figures: 11.02 + 2.00(1.1)(13.5 − 1.6) 11 12 MODULE 03: Naming & Writing Compounds Worksheet Name the following compounds: Answer 1) NaBr 2) CaO 3) CO2 4) MgBr2 5) Be(OH)2 6) N2S 7) ZnSO4 8) AuBr3 9) CuC2H3O2 10) KMnO4 11) CaCO3 12) NH4NO3 13) CO 14) Li2S 15) MgCl2 16) SF6 17) Fe2O3 18) PbSO3 19) Zn3(PO4)2 20) NO2 13 MODULE 03: Naming & Writing Compounds Worksheet Write the formula for the following compounds: Answer 21) Potassium iodide 22) Magnesium oxide 23) Nitrogen monoxide 24) Ammonium chloride 25) Iron (III) oxide 26) Magnesium phosphate 27) Iron(II) sulfate 28) Calcium chromate 29) Silver bromide 30) Cooper (I) chloride 31) Silver carbonate 32) Nitrogen trichloride 33) Aluminum chloride 34) Sodium Cyanide 35) Nickel (II)Phosphate 36) Chromium (III) Hydroxide 37) Zinc nitrate 38) Barium Acetate 39) Calcium sulfide 40) Sodium phosphate 14 MODULE 04: Naming & Writing Acids Worksheet Name the following compounds: Answer 1) HF 2) HClO3 3) H2CO3 4) HCl 5) H2S 6) HClO 7) H2SO4 8) H2SO3 9) H3PO4 10) HI 11) Hydrobromic acid 12) Nitric acid 13) Acetic acid 14) Phosphorous acid 15) Hydrocyanic acid 16) Carbonic acid 17) Phosphoric acid 18) Sulfurous acid 19) Hydrochloric acid 20) Sulfuric acid 15 16 MODULE 05: Chapter 1 in Textbook Title of Chapter #1: Introduction: Matter & Measurement ______ List of Subheadings: (Fill-in) 1.1 __________ 1.2 ______ ______ 1.3 ________ 1.4 _______ 1.5 ______________ 1.6 _______ Check Grade Filled-in by teacher I. Survey the Chapter A. Read the chapter's opening page text & "What's Ahead" entry. B. Examine all figures and all tables. C. Read "Summary & Key Terms" at the end of each chapter. II. Study the Textbook Content A. Read text & take notes as you read. (You should have a minimum of 2 pages front and back & may take several hours to complete) B. Review all sample exercises and practice exercises III. End of Chapter Visualizing Concepts & Exercises A. Title of segment #1: Visualizing Concepts Problems submitted by the student: 1, 2, 5, 6, 7 B. Title of segment #2: Classification and Properties of Matter Problems submitted by the student: 11, 17, 20 C. Title of segment #3: Units and Measurement Problems submitted by the student: 23, 27, 31 D. Title of segment #4: Uncertainty in Measurement Problems submitted by the student: 34, 36, 37, 39 E. Title of segment #5: Dimensional Analysis Problems submitted by the student: 41, 44, 47, 49, 53 17 18 MODULE 06: Chapter 2 in Textbook Title of Chapter #2: __________________________________________ ______ List of Subheadings: (Fill-in) 2.1 __________________ 2.2 _____________ ______ 2.3 ________ ______ 2.4 _______ ______ 2.5 ______________ __ 2.6 _______ _______ ______ 2.7 ______________ ______ 2.8 _______ ______ 2.9 _______ ______ Check Grade Filled-in by teacher I. Survey the Chapter A. Read the chapter's opening page text & "What's Ahead" entry. B. Examine all figures and all tables. C. Read "Summary & Key Terms" at the end of each chapter. II. Study the Textbook Content A. Read text & take notes as you read. (You should have a minimum of 2 pages front and back & may take several hours to complete) B. Review all sample exercises and practice exercises III. End of Chapter Visualizing Concepts & Exercises A. Title of segment #1: Visualizing Concepts Problems submitted by the student: 1, 3, 4, 5 B. Title of segment #2: Atomic Theory and the Discovery of Atomic Structure Problems submitted by the student: 12, 13, 15 C. Title of segment #3: Modern View of Atomic Structure: Atomic Weights Problems submitted by the student: 17, 26, 27, 29, 30, 35 D. Title of segment #4: The Periodic Table; Molecules and Ions Problems submitted by the student: 41, 42, 43, 47, 50, 51, 53, 56, 60 E. Title of segment #5: Naming Inorganic Compounds; Organic Molecules Problems submitted by the student: 64, 68, 72 19 20 MODULE 07: Chapter 3 in Textbook Title of Chapter #3: __________________________________________ ______ List of Subheadings: (Fill-in) 3.1 _____________ 3.2 _____________ ______ 3.3 ________ ______ 3.4 _______ ______ 3.5 ______________ __ 3.6 _______ _______ ______ 3.7 ______________ ______ Check Grade Filled-in by teacher I. Survey the Chapter A. Read the chapter's opening page text & "What's Ahead" entry. B. Examine all figures and all tables. C. Read "Summary & Key Terms" at the end of each chapter. II. Study the Textbook Content A. Read text & take notes as you read. (You should have a minimum of 2 pages front and back & may take several hours to complete) B. Review all sample exercises and practice exercises III. End of Chapter Visualizing Concepts & Exercises A. Title of segment #1: Visualizing Concepts Problems submitted by the student: 1, 5, 7 B. Title of segment #2: Balancing Chemical Equations Problems submitted by the student: 10, 12, 14 C. Title of segment #3: Patterns of Chemical Reactivity Problems submitted by the student: 17, 20 D. Title of segment #4: Formula Weights Problems submitted by the student: 21a-d, 25 E. Title of segment #5: Avogadro’s Number and the Mole Problems submitted by the student: 28, 34, 36, 39, 42 21 F. Title of segment #6: Empirical Formulas Problems submitted by the student: 44, 48, 50 G. Title of segment #7: Calculations Based on Chemical Equations Problems submitted by the student: 57, 59, 61, 64 H. Title of segment #8: Limiting Reactants; Theoretical Yields Problems submitted by the student: 67, 68, 69, 71, 73, 77, 79, 80 22