Monday, May 24, 2021

Chemistry B Final Exam Answers


  • Students taking digital exams will not be asked to draw or graph as part of their response—rather, these skills may be assessed by asking students to provide explanations about given diagrams or other stimuli. No handwritten or photographed...
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  • Unlock personal progress checks so students can demonstrate their knowledge and skills unit by unit and use the progress dashboard to highlight progress and additional areas for support. Encourage your students to visit the AP Chemistry student page...
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  • Students can click on the » symbol shown in the prompt to automatically scroll to the referenced location. A calculator is allowed on all sections of the digital exam. However, students will need to bring their own calculator, because the digital testing application does not include one. The AP Chemistry Equations and Constants and Periodic Table can be accessed with the Reference button in the upper right button bar of the application. The interface and layout are different in the digital testing application than in the paper exam booklet, so students should take a look when they take digital practice.
    Link: https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/
  • However, free-response questions will each be presented in multiple parts, and students will answer each part on a separate screen. They may move among the parts of the question currently being answered, with the Back and Next buttons. Students will see them at the beginning of each section, and can access them at any time during the exam. Please note that the exam timer starts when the directions appear. While students should read the directions, they should be aware that the timer will be running while they do so. Teachers and students can view the full text of the exam and section directions in advance of the exam. More information about taking digital exams is available in the Digital Testing Guide. Teachers and coordinators will access the dashboard from their personalized AP login page after signing in through AP Central or through myap.
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  • We want to ensure that you, a Whitman student who wishes to take General Chemistry, can enroll in a course that is best suited to your level of preparation. All students taking General Chemistry must take the placement test before registering. More details course descriptions, prerequisites, etc. To take the placement test, you must follow the Google form link below and log in using your whitman email address. If you are in a location where access to Google is restricted, please contact Professor Nate Boland bolandne whitman. The placement test consists of two parts A and B. Part A covers math skills and quantitative reasoning 20 questions and part B contains typical chemistry concepts covered in high school chemistry courses 30 questions. You may only take this placement test ONCE, so please be prepared to complete the test in one sitting. You need ONLY pencils, scratch paper, and a calculator to complete the test. A periodic table and all relevant constants are provided.
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  • To ensure that you are able to take the course s that will best serve you, please do not use any other resources. You may take as long as you wish to complete it. If you are unfamiliar with a particular problem or don't remember how to solve it, please select either "I've never seen question like this before" or "I've seen this before, but forgot" instead of guessing an answer. It will allow us to better understand your level of preparation and provide you the resources you need.
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  • Once you hit "Submit," your answers will be sent to the Chemistry department and the test will end. Prior to registration the Chemistry Department will communicate with you and the register's office about which course s are most suitable for you. If you have any questions about General Chemistry, please contact Professor Tim Machonkin at machonte whitman. We also encourage you to speak with your academic adviser prior to registration about how general chemistry fits into your academic plan.
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  • If you compare the primary amine in DNA to a primary amine in cyclohexamine, which amine is more nucleophilic? Explain your answer. Butanol is considered to be a better biofuel alternative compared to ethanol for several reasons. Draw the structure of each molecule: The S -enantiomer of prozac shown below. Draw the perspective structure for the R -enantiomer ie, the other enantiomer in the box provided. Intermolecular forces: Circle which of the following compounds will form hydrogen bonds networks with itself between its molecules. Which is stronger an OH covalent bond or an OH hydrogen bond? OH covalent is stronger because it is a shorter bond with better overlap of orbitals while the hydrogen bond is an interaction between 2 different molecules.
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  • Consider the following pairs of compounds A and B and circle which compound will have the highest boiling point. Briefly explain your answer, including the intermolecular forces for each. Organic Structure: Provide a drawing of benzene that shows what orbitals allow benzene to have a conjugated pi system with delocalized electrons shared by all six carbon atoms.
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  • See page , figure 6. Resonance structures: where are the electrons? Draw two resonance structures for the following carbocation intermediate to explain why this carbocation is stabilized. In your answer above, which resonance structure makes a greater contribution to the resonance hybrid? Briefly explain your answer. A makes a greater contribution to the resonance hybrid because it does not violate the octet rule. All atoms have a full octet. Which of the following structures is the greatest contributor to the resonance hybrid? For part d above, draw curved arrows for the formation of B from A. Then draw curved arrows for the formation of C from B. Acidity concepts: For each pair of molecules below, complete the following steps and determine which is more acidic.
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  • Only one of the molecules actually has delocalized electrons for resonance stabilization, therefore the conjugate base of B is more stable. Inductive effect is greater for molecule A because the F atoms are more EN than the Cl atoms, therefore the conjugate base of A is more stable. Draw the conjugate base for each of the following molecules. Identifying electrophiles and nucleophiles for reaction mechanisms: Explain the different between a nucleophile and electrophile and give an example of each. A nucleophile is electron rich like an alkene or amine and an electrophile is electron poor, i. Two possible products can be formed in the following reaction. Label the nucleophile and electrophile in this reaction and then draw the structure for each of the possible products. Now indicate which product will be more likely to form in part c and provide an explanation for your answer that includes the structures of the intermediates for the reaction.
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  • A proceeds by forming the more stable carbocation because it is secondary and has resonance stabilization. For the following reaction, it has been shown that the rate of the reaction increases when the amount of nucleophile increases. Is this reaction an SN1 or an SN2 reaction? Draw the curved arrow mechanism for this reaction. SN2 Is the product in part d chiral? Yes or No Yes Products of chemical and biological reactions: What is the product of the following substitution reaction? Identify the nucleophile and electrophile and then draw curved arrows showing how the react to give the product. What is the product of the following hydrogenation reaction? What is the carbon building block that can be used to synthesize the following alcohol or alkyl bromide?
    Link: https://researchgate.net/topic/Metal-Organic-Frameworks
  • Provide a brief explanation for your answer. Make sure to read question. Stereochemistry: Stereoisomers with an asymmetric carbon center and non-superimposable mirror images are called: enantiomers Equal amounts of two enantiomers is called a racemic mixture Isomers that differ in connections between atoms are called constitutional isomers The interconversion of a single enantiomer into a racemic mixture is called: racemization Explain the difference between constitutional isomers and stereoisomers. Metolachlor kills weeds by preventing the plants from making a waxy coating on the leaves. This wax is produced with the help of an enzyme called fatty acid elongase. When the enzyme activity is inhibited, the wax is not produced and the weed dies. The following graph shows the amount of R- and Smetolachlor required to interfere with the enzyme. Identify three functional groups in metolachlor.
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  • Based on the graph data, if you wanted to kill weeds which enantiomer would you use? S Why do these enantiomers have different activities? They each have a different spatial orientation i. Both the R- and S-enantiomers of metolachlor are degraded in the environment to produce a metabolite that kills fish. Metolachlor is currently sold as a racemic mixture.
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  • Only sell a single enantiomer i. Circle any of the following structures that represent a cis isomer? What is the appropriate formal charge for the following molecule?
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  • Chemistry 1 notes pdf chemistry 1 notes pdf Vidyakul brings CBSE Class 12 Chemistry Notes in PDF to help the students understand that Chemistry is all about learning chemical elements and compounds and how these things work together to form numerous chemical equations. Vocabulary 3. Science is basically the study of living and non-living things. Chemistry Notes Download in Pdf.
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  • Take good care not to damage or lose it. Aakash Chemistry Study Material Pdf. As particles move they collide with each other and bounce off in all directions. General Chemistry Lecture Notes. So, download chemistry notes from our site i. Chemistry Notes G. Box 1. Click the button below to download the full Chemistry Form 1 Notes pdf document, with all the topics. Victor S. Atomic Theory is the central theme of chemistry and most important idea in science. Refer the revision notes to shine in Chemistry. We provide free online access of kcse chemistry notes form 1, form 2, form 3, form, form 4 and other resources. For syllabus with current course information and homework problems find your course in UTC Learn Blackboard.
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  • The students can download the 12th class notes on different subjects for free. To download FSc 1st year Chemistry chapter 2 Technical Experimental Techniques in Chemistry notes, Click on the download button given at the end of this post. Everything is made of particles. Stereocontrolled 1,2-addition of allylboron, titanium, silicon, and tin compounds to carbonyl groups. Revision Notes can be very beneficial for students to revise all their previously prepared chapters and concepts, especially during the examination times when they have to revise the whole syllabus in CBSE Class 12 Chemistry Notes — PDF Download. These notes are in PDF format that helps you to view all 7 chapters in one file. Students can use Class 11 Chemistry ch 1 notes in PDF file both offline and online to understand the critical terms and concepts in easy to understand language with examples, diagrammatic 1.
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  • Taking well-organized notes helps you understand the material. Download it, read it and share it. Kinetics 1: Gas laws, kinetic theory of collisions. All resources are updated for the latest Chemistry specification. From Chapter 1 TO Chapter Liquids 3. Introduction to Chemistry, Atoms and Elements Importance of Chemistry Question: If cataclysmic event were to destroy all knowledge of science what would be the most important knowledge to pass on to future generations? Answer: Everything is made of Atoms. All the notes mentioned above are for VTU students studying in chemistry or C cycle. Revision is very important for better conceptual understanding and securing good marks, and for Revision, Revision Notes are always considered the best.
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  • Read before lecture. Net Meeting. And to help students in solving this issue we have prepared Chemistry Chapter 1 Some Basic Concepts of Chemistry handwritten notes for Class 11 Preparation. All the important topics of Chemistry Notes For Class 11 are explained with diagrams and charts so that students can easily memorize the crucial terms of the chapters, Given Handwritten Notes for Class 11 Physics are accurate and maintain a proper standard as per our knowledge. The particulate nature of matter 2. When scientists started exploring matter, they realised that matter can be divided into smaller and still smaller particles. Notes are applicable for both the 1st and 2nd-semester students of the CBCS scheme. These notes are in PDF format that helps you to view the whole syllabus in one file. States of Matter: 6. Therefore, in chemistry we study materials that make up the earth and universe. Classification of Elements and Periodicity in Properties: 4.
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  • This general definition raises many questions. Reaction with Oxygen. These notes can be used for any honors or CP1 chemistry course by omitting information that is specific to the higher-level course. The Readings column refers to relevant sections in the course textbook, L. Characteristics of liquids: Liquids have definite volume but not definite shape. Sarah Tabacco, while the second half of the lectures were given by Prof. Chemistry Notes in Pdf. In this post, I have provided the download links of inorganic chemistry notes for BSc Sem I as well as Sem II, All the notes provided on our website are free to download. Inorganic compounds are classified into molecular compounds and solid-state compounds according to the types of atomic arrangements. Bio chemistry study of substances and processes in living things 6. FSC part 1 chemistry notes you can Electro chemistry is a branch of chemistry which deals with the transformation of electrical energy into chemical energy or chemical into electrical energy.
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