CRJS 215 Study Guide - Final Guide: Chemical Formula, Stereochemistry, Aziridine

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purplerat92

19 Jun 2018

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9:10 — 10:20 a.m.

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Important Notes:

1. This exam consists of 8 problems on 8 pages, plus this cover sheet, and one page for scratch work at

the end of the exam.

2. All answers must be written in the spaces provided. Do not write anything in red ink. Answers

written on the back of a page will not be graded. Anything written on the scratch page will not be graded.

3. You are allowed to use a set of molecular models for this exam.

Problem

Score

____________ / 12

____________ / 14

____________ / 12

____________ / 14

____________ / 12

Total Score:

________________ / 100

Practice Examination 6A

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1. Each of the following transformations can be carried out in three or fewer steps. Fill in the reagents or

conditions required for each step. If a step is not needed, please put an "X" through that step.

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_______ / 12

NH2

Br NH2

(+/–)

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2Name:

2. Fill in each box with the single major organic product of the indicated transformation. For full credit, your

answer must conform to the molecular formula, if given. Be sure to indicate the correct stereochemistry if it is

relevant!

_______ / 12

H3CO

OCH3

, pH 5

H2N

2. LiAlH4

3. H+ workup

CO2CH3

(Mol. Form. C12H21N)

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Document Summary

Important notes: this exam consists of 8 problems on 8 pages, plus this cover sheet, and one page for scratch work at the end of the exam, all answers must be written in the spaces provided. Answers written on the back of a page will not be graded. Anything written on the scratch page will not be graded: you are allowed to use a set of molecular models for this exam. ________________ / 100: each of the following transformations can be carried out in three or fewer steps. Fill in the reagents or conditions required for each step. If a step is not needed, please put an x through that step. _______ / 12: fill in each box with the single major organic product of the indicated transformation. For full credit, your answer must conform to the molecular formula, if given. Be sure to indicate the correct stereochemistry if it is relevant!

Related Questions

This is a practice test and I really need help figuring out what reactants produce this products. I am not sure if I am correct on the first one but I tried to draw a secondary alcohol producing a ketone via oxidation. Any help would be greatly appreciated.

Please answer to the best of your ability

Show transcribed image text correctly.Completion and turning in of the entire review will result in an additional +3 pts on your final exam. Show all work to get extra credit. Please contact your instructor for clarification or specific questions. Report the following answers to the following problems with the correct number of significant figures and units: 1. 1 (0521 g 0.4953 0098 61â-24.135ë¯¸+1(120 64 g 4.1847 a)(21st-241530 1 (98.61 C-24.135)120.64g 4.1 21.5Â°C-24.153C) 0.0213548 moles b. (00020334-ern) + ((61210 goles Og) 0.002030 moles 1.02 moles (68.79 mlt29.901 ml) (26.3-0.230) c. 2. You are drying a sample of Bas(POsh. After 5 minutes of drying it weighs 1.2034 g. You continue to dry the sample for another 5 minutes and it now weighs 1.9346 g. What is the percent change in mass? 3. What is the percent mass of carbon in sodium carbonate? 4. What is the density of water at 23.1051Â°c? Use Table 1.1 on page 27 of your lab manual to help. 5. Based on the following reacts, predict the products. Write the balanced molecular equation, total ionic equation, and net ionic equation. All reactions are done in water a. Sodium chloride +silver (I) nitrate b. Calcium bromide + iron (III) sulfate c. Ammonium phosphate+ nickel (II) nitrate d. Hydrochloric acid+ calcium carbonate 6. Write the two balanced chemical reactions for a. Copper (II) oxide reacting with methane under high heat b. Copper (1) oxide reacting with methane under high heat 7. You analyze a mixed sample of copper (1) oxide and copper (II) oxide. The plot and trendline for mass of copper versus mass of mixture yields a slope of 0.8031. What are the mass percents of copper (0) oxide and copper (II) oxide in the mixture?
8. During week 1 of the Empirical Formula Lab you extinguished your "L-tube" flame without waiting 9. 20.00 ml of a 0.30 M potassium phosphate solution is combined with 20.00 mL of a 0.40 M solution 10. An Erlenmeyer flask is capped with a rubber stopper at room temperature (25 C) and atmospheric 11. The first step of the copper cycle lab was reacting solid copper with nitric acid. The copper ends up 12. What are the spectator ions in the 6 reactions performed during the copper cycle lab? for the reaction to cool and did NOT relight the "L-tube" flame. How would this affect your calculated percent mass compared to the true percent mass? of calcium chloride. What is the limiting reactant? What is the identity of the precipitate formed in the reaction? How many grams of product should be collected? pressure (1 atm). What temperature does the Erlenmeyer flask need to be heated to for the stopper to pop off? Assume it needs to exceed external pressure by 0.5 atm to release the stopper. oxidizing to copper (ll). What is the oxidizing reagent in this reaction? 13. The known specific heat capacity of aluminum is o g mo 25.316 g of aluminum is placed in 99.134 of water at a starting temperature of 22.45Â°C. The metal has a AT-84.02c what is the final 14. The AH, of cobalt (U) nitrate is +47.7 kJ/mol. What is the AHr of solid cobalt (1) nitrate? 15. 5.000 g of aluminum (Il) chloride is dissolved in 60.0 mL of water. The temperature changes by 16. Draw the Lewis dot symbols for the following atoms: temperature of the water? ÎÎ(Nouql)--205.00 kJ/mol ÎÎ,(Co2"m)--58.2 kJ/mol 0.331 Â°C. The specific heat capacity of aluminum (III) chloride is 0.903 Wat s AH.? what is ÎÎ a Ð°, Ð½Ðµ Ñ, Ñ c. Ar d. P e. H 17. Draw the Lewis structures for the following molecules: a. NHa b. O2 XeF d. NF

CRJS 215 Study Guide - Final Guide: Chemical Formula, Stereochemistry, Aziridine

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