AP Chemistry Information and Summer Assignment 2011-2012Mrs. McClain

AP Chemistry Information & Summer Assignment2011

Introduction

Congratulations on your decision to take Advanced Placement Chemistry! This class has the potential to be one of the most fun & rewarding classes that you will take in high school. However, please be advised that many people have found AP Chemistry to be a particularly challenging course with a particularly challenging exam, even when compared with other AP courses and AP exams.

Remember also that AP classes are taught as college courses—not just college-level courses, but actual college courses. This means that:

  • I will do as much as I can to help you learn, but you and you alone are responsible for learning and understanding everything covered in class.
  • I will tell you when everything is due, but I won’t chase after you. If you were absent and you need to turn in an assignment late, you need to remember to show it to me; do not assume I will ask you for it.
  • If you’re having trouble with something, you need to be proactive about learning it, either by coming in for help after school, consulting with your classmates, or by getting outside help. This expectation is effective immediately, and it applies to this summer assignment. Remember—your job is to succeed; my job is to do everything in my power to help you be successful. Don’t ever hesitate to make me do my job so you can do yours!

The goals of this summer assignment are to make sure you haven’t completely forgotten ChemistryI, to give you a “warm-up” for APChemistry, and to give you an idea of the type and amount of work in AP Chemistry. Daily assignments as well as graded assignments are the norm for this class. Expect multiple assignments.

The summer assignment consists of memorizing the element symbols and polyatomic ions, encountering the types of problems you will be calculating during the first grading period, along with some problems that combine multiple concepts from Chemistry I. All parts of the assignment are due on the first day of school, Wednesday, August 24, 2011.

You may work with your friends in the class, as long as you list the names of the people you worked with and each person turns in their own individual copy. You may also ask me for help. You can find me online at:

Email:

Website:

Warning: don’t leave the assignment until the week before school starts—if you do, you’ll be sorry!

Recommended Supplies

I recommend the following supplies for success in AP Chemistry:

  • Two composition books for use as a laboratory notebook and a log/homework notebook. Theses notebooks must have pages that are permanently bound into the notebook and cannot be easily removed.
  • Three ring binder notebook for handouts and lecture notes
  • Scientific calculator. It does not need to be a graphing calculator, although a graphing calculator is preferred if you already have one.

Summer Assignment: Homework Problems

The following problems are review concepts from Chemistry I. They are intentionally more challenging than problems you have likely encountered in previous classes.

For each problem (and subsequently throughout the year), you must show all of the steps that lead from the question to your answer, regardless of whether you do the work on paper, on your calculator, or in your head.

Part A: Symbols and Names: Memorize element symbols and names for those with atomic numbers of 1-56, 72-88, and 92. (Quiz on Thursday of the first week). Also memorize the attached list of polyatomic ions. (Quiz on Friday of the first week).

  1. Give the correctly spelled name of each of the following elements:
  2. Bef. Cek. Mn
  3. Scg. Csl. Ag
  4. Cdh. Km. Mg
  5. Tli. Nan. Hg
  6. Brj. Feo. Ru
  1. Write the name for each of the following:
  2. AuCl3
  3. Cu2SO3
  4. (NH4)2S
  5. Pb(NO2)2
  6. SCl2
  1. Write the chemical formula for each of the following:
  2. Iron (III) phosphate
  3. Hydrogen bromide
  4. Hydrobromic acid
  5. Vanadium (II) phosphate
  6. Barium phosphide
  1. Give the correct name for each of the following:
  2. MgOe. Na3BO3
  3. MnCl2f. FeC2O4
  4. Rb2Sg. (NH4)2Cr2O7
  5. BeI2h. Ca(ClO)2
  1. Give the correct chemical formula for each of the following:
  2. Sodium thiosulfate
  3. Nickel (II) sulfate
  4. Aluminum sulfate
  5. Ammonium acetate
  6. Calcium dihydrogen phosphate
  7. Manganese (III) oxide
  8. Magnesium phosphate
  9. Tin(II) iodide
  10. Dinitrogenpentaoxide
  11. Diphosphorustrisulfide
  1. Give the correctly spelled names and molecular formulas for all the elements that exist as diatomic gases at STP.

Part B. Moles and Stoichiometry

  1. Using dimensional analysis, calculate each of the following using 23.7 g of sodium thiosulfate.
  2. The number of moles in the sample
  1. The number of moles of sulfur
  1. The number of grams of oxygen
  1. The number of sodium atoms
  1. Using the following chemical reaction: 4 Mn(s) + 3 O2 (g)  2Mn2O3 (s)
  2. Calculate the number of grams of manganese required to react completely with 0.800 moles of oxygen.
  1. Calculate the number of liters of oxygen at 25oC and 0.958 atm. to completely react with 32.5 g of manganese.
  1. Calculate the number of grams of manganese (III) oxide that can be prepared by reacting 5.00 L of oxygen at STP with sufficient manganese.

Part C: More Challenging AP Style Questions:

  1. A rigid tank is filled part-way with water. After adding the water, the tank contains 15.0l of air, the temperature is 26°C, and the total pressure inside the tank is 99.7kPa. If the temperature is lowered to 21°C, what is the new pressure inside the tank? (You may assume that air and water vapor behave as ideal gases, and you may neglect any changes in the volume of the liquid due to thermal expansion.)
    The vapor pressure of water is 3.36kPa at 26°C, and 2.49kPa at 21°C.
  1. 60.0 g of an unknown solute was dissolved in 500 mL of H2O. The freezing point depression of the solution was 1. 24oC. Thepercent composition of the unknown was 40.0%C, 6.7% H, and 53.3% O. Find the empirical and molecular formulas.