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- This is not a full practice test it only has 15 multiple-choice questions and two free-response questions total , but it's directly from the College Board, so it's the most accurate and up-to-date representation of the format and content of the...
- AP teachers have access to extra practice tests from the College Board that are available for classroom use. Oh, you need more practice tests? Maybe you should have thought of that before you interrupted all of my lectures with unnecessary questions...
- You'll also be timed as you take the tests so you can get a better sense of your pacing. Questions are multiple-choice only, so this won't give you any free-response practice. I'd also recommend trying out their AP Chemistry practice app it's free. Looking for help studying for your AP exam? Our one-on-one online AP tutoring services can help you prepare for your AP exams. Get matched with a top tutor who scored a 5 on the exam you're studying for! Albert Quizzes This site includes quizzes for each concept broken down according to the major units of the course. This site will track your progress and tell you what percentage of questions you got right from each difficulty level questions are organized into easy, medium, and hard categories. Here you'll find tons of review questions and activities, with lengthy practice quizzes for each unit of the course.
- This is one of the few resources that has non-multiple-choice questions that you can check automatically online. This quiz includes 58 free AP Chemistry practice multiple-choice questions. ChemmyBear There's a lot of stuff here, but if you're just looking for practice tests, you can find them at the end of the list of resources for each unit. There are multiple-choice and free-response tests for most units with accompanying answer keys. Two full-length practice tests up to date format and content Answer explanations Automatically tells you what you still need to study based on your results Also includes test prep for other AP exams Sterling Test Prep price varies On this site, you can buy individual practice tests for each topic in AP Chemistry.
- You can also just get the Sterling book of practice questions, which many students seem to find helpful. Review Books price varies Review books can be great resources because many of them include instructions for how to structure your studying in addition to focused content overviews. You can click on the link in the title of this section to read my full article on the best review books for this course. You can also get review books as e-books on your Kindle or whatever, but that's much harder to represent visually. Do you guys even know what you're looking at here? Do people under the age of 20 still read physical books? Want to build the best possible college application? We can help. PrepScholar Admissions is the world's best admissions consulting service. We combine world-class admissions counselors with our data-driven, proprietary admissions strategies.
- We've overseen thousands of students get into their top choice schools, from state colleges to the Ivy League. We know what kinds of students colleges want to admit. We want to get you admitted to your dream schools. Learn more about PrepScholar Admissions to maximize your chance of getting in. How to Use AP Chemistry Practice Tests Practice tests are great study tools for AP tests, and they're especially helpful for a subject like Chemistry that involves a lot of calculations and experimental analysis. In the next couple of subsections, I'll tell you how to use practice tests throughout the school year to prepare for the AP Chemistry exam. First Semester: Using Practice Tests for Your Class It's not practical to take full practice tests during the first semester of AP Chemistry because you haven't covered enough of the course material yet.
- Focus on official free-response questions and unofficial topic-specific practice tests that address aspects of the curriculum that you've learned already. It's a great idea to start early and do consistent reviews so that your knowledge base remains strong throughout the year. Since chemistry is a subject that builds on the fundamental concepts learned in the first few months of class, it's vital that those early lessons are solidified in your memory. This way, more complex material that you learn second semester won't fly over your head. You can also consider getting a prep book; most of them have practice questions organized by chapter for selective review of different concepts. At this point, you've learned most of the material that will be covered in the class, so your scores should accurately reflect your abilities. Every time you take a full practice test, keep track of the areas where you need more practice. As I mentioned at the beginning of this article, I would recommend saving the most up-to-date official practice materials for later in the semester so that the format of the current test stays fresh in your mind.
- As you take each test, circle any questions where you were unsure about your answer. Even if your choice ends up being correct, you should still plan to go over these concepts, so you don't feel shaky about them on the real AP test. After you've finished taking the test with realistic time constraints! The purpose of taking practice tests is to diagnose your weaknesses so you can address them as efficiently as possible. DON'T go from one test to the next without taking a deeper look at what went wrong! You'll end up wasting your time, and your second practice test is unlikely to demonstrate much improvement. Spend at least a couple of hours after each practice test doing practice problems and reviewing concepts that you didn't quite understand when they came up on the test.
- When you feel satisfied that you have a better handle on the background information and solution methods, you can take a second practice test to see how much you've improved. The process as a whole should work like this: Take and score first practice test 4 hours Evaluate mistakes 1. One cycle through all of these steps will take around hours, but you can repeat the steps ad infinitum until you're satisfied with your scores. If you find that you're not improving between practice tests, you'll need to reevaluate your study strategy.
- To master a complex subject like chemistry, you need to have a strong grasp of the fundamental concepts. Then, you can build on that understanding for more difficult problems. Be sure to do lots of practice problems where you're required to justify your answers! The smug dude on top is you after studying with these practice tests! Just mentally replace the 1 with a 5 so that your smugness makes sense on the AP scale. Conclusion Practice tests are essential study tools, especially for AP Chemistry. Doing practice problems that align with the format and content of the real exam will help you to gain familiarity with the material and feel less stressed on test day. Try to start your studying with unofficial practice tests to build up a strong knowledge base, and then move onto official practice tests when you're ready to estimate your real AP score level. As you take practice tests, assess your mistakes and plan out your study time according to which areas need the most work.
- Make sure you start with basic concepts and then work your way up to more complex problems. Use these practice materials to detect gaps in your knowledge, and fill them before you take the test! What's Next? Want to learn a bit more about the test before you start practicing? Read our expert guide to the AP Chemistry exam , which includes sample questions and study tips! Wondering how you can see chemistry in action in your day-to-day life? If you're looking for chemistry you can taste, we recommend these articles on vegetable oil substitutes and pozole Mexican corn soup. If you're thinking more along the lines of something to play with, we have three different recipes for homemade slime.
- And if you need to clean things up afterwards, be sure to read our article on muriatic acid and how to safely use it. One of the single most important parts of your college application is what classes you choose to take in high school in conjunction with how well you do in those classes. Our team of PrepScholar admissions experts have compiled their knowledge into this single guide to planning out your high school course schedule.
- Exam Components Note on Exams There are differences between the paper and digital versions of some AP Exams, and those variations differ by course. The information below applies to AP Chemistry only. View a summary of all AP Exam formats. The digital AP Chemistry exam will take the same amount of time as the paper exam, but will include: More multiple-choice questions than the paper exam. Fewer free-response questions than the paper exam. The digital exam will include any symbols you would need to type your responses. All responses must be typed directly into the exam app. No handwritten or photographed work will be accepted. Please note that calculators will be permitted on all sections of the digital exam in You will be able to practice multiple-choice and free-response questions within the digital exam app, available in early April.
- A —The reaction is an oxidation-reduction reaction since the sulfide ion undergoes oxidation to elemental sulfur and the azide ion undergoes reduction. B —It is necessary to remove the ammonia from the gas; otherwise the part of the volume generated would be due to the ammonia. Since ammonia is a base, it will react with the acid. D —The pressure inside the flask is the sum of the partial pressures. Therefore, the pressure of hydrogen gas is the total pressure The leveling of the water in the beaker and flask adjusted the pressure in the flask to the external barometric pressure. B —When the two liquid levels are the same then the pressures must be equal. In this case, both pressures are equal to the barometric pressure. It is easier to calculate the answer by simple rounding as: 6. C —The moles of nitrogen gas formed equal the moles of sodium azide reacting see the balanced chemical equation. If the sample were pure sodium azide, the mass of sodium azide would be The moles of sodium azide are the mass of sodium azide divided by its molar mass Due to rounding, the actual answer must be a little smaller 0.
AP Chemistry: Multiple Choice Practice Questions - Kaplan Test Prep
A —Sulfur dioxide gas is soluble in water and, while less soluble in dilute acid, some would still dissolve to give a smaller volume. A —This represents an ion-dipole force, which is stronger than a hydrogen bond B , a dipole-dipole force C , or a London dispersion force D. For this reason, 24 days years must be three half-lives of about 8 days each. A —One mole of a cycloalkane, C n H2n , will form n moles of water. C —The best choice to prepare the buffer is the one where the pK a is closest to the desired pH. It is possible to estimate the pK a for an acid without a calculator by taking the negative of the exponent for the different K a values. The HNO2 has the value closest to the desired pH.- It would not be a good choice since the pK a is so far from the pH; however, it is the best choice. D —As long as there are equal numbers of moles of gas on each side of the equilibrium arrow, then volume or pressure changes will not affect the equilibrium. The presence of solids, liquids, or aqueous phases does not make any difference as long as some of the phase is present. The pH at the halfway point is equal to pK a. The value of K a1 is 8. A —To reach H, it is necessary to convert all the ascorbic acid to the hydrogen ascorbate ion, which means the moles of hydrogen ascorbate ion formed must equal the moles of ascorbic acid originally present. The moles of hydrogen ascorbate ion formed would require the same number of moles of base as that required to convert the ascorbic acid to hydrogen ascorbate. Equal moles would mean equal volumes added. D —In any acid-base titration, it is always easier to use a strong base and a strong acid. Potassium hydroxide, KOH, is the only strong base among the choices.
- B —The titration of a weak acid with a strong base always has an equivalence point above 7. Only B cannot behave as an acid donate a hydrogen ion. C —Initially, doubling the volume will result in halving the concentrations. Next, consider the reaction. The silver ion is the limiting reagent, so very little remains in solution due to its K sp. The precipitation of silver chromate reduces the chromate concentration from 0. The nitrate does not change soluble remaining 0. Since two potassium ions soluble are formed per potassium chromate, after mixing the potassium ion concentration was 0.
Pinto, Paulo / AP Chemistry - Textbook Chapters - Answer Keys
D —To determine the molar mass of the gas it is necessary to know the mass of the gas measured and the moles of the gas. The ideal gas equation is necessary to determine the number of moles of gas present. The pressure of the gas is equal to the barometric pressure minus the vapor pressure of water. Water, whenever present, will contribute its vapor pressure. A— A —Since the compound is less soluble in hot water, the solution process must be exothermic. Exothermic processes shift toward the starting materials solid cerium III sulfate when heated. C —The gases are all at the same temperature; therefore their average kinetic energies are the same. A —The smaller the molecule and the less polar more nonpolar the gas is, the smaller the deviation from ideal gas behavior. A —Escaping gas would decrease the number of moles. Less gas remaining in the container would mean less pressure.- The faster moving gas molecules would escape faster, lower the average velocity of those remaining in the container. A lower average velocity means a lower temperature. C —It is necessary to use the half-life relationship for first-order kinetics. Dividing by 90 gives 40, and 40 times 0. D —The loss of 0. The numerical values are the same; however, the rates have opposite signs. B —At equilibrium, there is no net change because the forward and reverse reactions are going at the same rate. B —As the reaction approaches equilibrium, there is a net decrease in the number of moles of gas present.
- A decrease in the number of moles of gas will lead to a decrease in pressure B —The loss of 1. A —Oxygen odorless evolves at the anode positive and ammonia distinctive odor evolves at the cathode negative. From the choices given, the only gas with a distinctive odor that could form is ammonia, NH3. For this reason, the nitrite ion half reaction must be the cathode reaction. The anode half reaction must be the reverse of one of the reactions in the table. The only one of the half reactions given that generates an odorless gas is the one involving oxygen, O2. The standard voltage of a galvanic cell is always positive.
- D —It is necessary to consider all possible half reactions that might occur during electrolysis. Of the half reactions listed, only the reduction of water and the reduction of aluminum ions are applicable to this experiment. For any electrolysis, the half reaction requiring the least amount of energy will take place. So, while it is possible to reduce both water and the aluminum ion, the reduction potential for water is lower requiring less energy , so water will reduce in preference to aluminum ion. B —In order for substance A to reduce substance B, substance A must be a stronger reducing agent than substance B. C —Silver appears twice in the list of half reactions, once in the simple reduction of silver ions and once in the reduction of silver chloride, AgCl. The AgCl half reaction clearly shows that this compound is a solid.
- This solid will form as the silver ion in the silver nitrate solution reacts with chloride ion from the potassium chloride in the salt bridge. The formation of solid silver chloride will alter the concentration of the silver ion, which leads to a change in the cell potential. B —The weakest acid smallest K a will have the highest pH at the endpoint. D —The buffer capacity only depends on the number of moles present. All three solutions have the same number of moles.
- C —Less acid would require less than the ideal amount of base to reach the endpoint. Therefore, the endpoint would occur too soon. D —An acid contaminant was present and it would be necessary to add additional base to titrate this acid in addition to the phenol. C —The electron configuration of carbon in 1s2 2s2 sp2. The removal of the last electron 2p requires the least amount of energy. A —The compound with the highest boiling point has the strongest intermolecular forces.
Practice Test 1 Answers And Explanations - Practice Tests - Cracking The AP Chemistry Exam
This is only valid if the molar masses are similar. C —The melting points of ionic materials depend upon the lattice energy. The higher the lattice energy, the higher the melting point is. Lattice energies depend upon the sizes of the ions and the magnitude of the charge. All three metal ions are approximately the same size; therefore, the size factor is minimal. This leaves the magnitude of the charge, and lanthanum, with the largest charge, should have the highest lattice energy. D —Perbromic acid, HBrO4 , is expected to be the strongest acid in this group because the greater number of oxygen atoms pulls more electron density from the hydrogen atom making it easier to be lost as a hydrogen ion.- For this reaction to become spontaneous at a lower temperature the reaction must be impeded by entropy entropy was negative. The enthalpy must be negative or the reaction could never be spontaneous. A —Enter the information into the K a expression. C —A carbon atom with four single bonds should be tetrahedral. Tetrahedral atoms have an ideal bond angle of The discrepancy between the two ideal bond angles leads to the relative instability of cyclopropane. The HgCl2 must be soluble because there is no solid remaining in the beaker. Since the resultant solution is nonconducting, there must be no electrolytes present; therefore, the products must be molecular species.
- Working through practice questions is the best way to prepare for your exams. Get started on your AP Chem test prep now! Varsity Tutors This site has an excellent selection of over free AP Chemistry mutiple choice questions. They are organized by unit so that you can review them all or just focus on a particular topic. Science Geek Interactive Review This is a huge collection of practice quizzes including chapter review questions and many tests on many specific topics. This is an amazing resource, fully updated for the new test. Lots of challenging questions in a PDF file. Video solutions are here. You need to register for access. Since these are directly from the College Board you should definitely check it out. Zumdahl Chemistry Textbook This is the student companion site for the popular Chemistry text by Zumdahl. Great interactive quizzes for each chapter.
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