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A Moving to another question will save this response. uestion 7 A sample of 121 has a half hfe of 1.7z 10' years. How many years would it take for the reactivity of the sample to fall to 5% af ats curent level? 29, Moving to another question will save this response. ake Test FFNAL

Q7. Fill in the missing intermediates, products and reagents in the reaction scheme shown below. 1. KMnO. KOH (aq) 2 HCI (an) 1. BaHe, THF 2. H,Oz. NaOH Compound A Compound B conc. H,PO, 1. PhMgBr CH,N, 2. HCl in H,0 heat Compound C Compound D 1. BHe. THF 1. NaH 2. H;O,. NaOH 2. Compound C Compound E Compound F Compound G Q8. Provide a plausible mechanism that leads to the major product of the reaction scheme shown below. 1. SOCI, HO, 2. NH(CH)2 Q9. Provide a plausible mechanism that leads to the major product of the reaction scheme shown below. 1. PBr3. Cl2 он 2. H,0 Q10. Provide the starting material needed to create the below product using m-chloroperbenzoic acid as the active reagent. Then draw the mechanism that facilitates this transformation.

O Reagents Available a. CH₂=CHCH₂CI, AICI 3 CH3 b. CH₂Br₂, OH™ C. CH3CH₂COCI, AICI 3 d. H₂, Pt e. NBS, CCI4 f. K* tBuO™ g. CO, HCI, CUCI/AICI3 h. CH3CH₂CH₂COCI, AICI 3 i. BrCH₂CH₂Br, OH- j. CH3CH₂CI, AICI 3 k. RCO3H I. H3O+ Using conditions from the table, show how you would synthesize this compound from catechol (1,2-benzenediol). Select reagents from the table in the order that you wish to use them, i.e. aced; do not include punctuation or spaces. If more than one route exists, choose the shorter one; in no case will a synthesis require more than 5 steps.

1) NABH, 2) H3O* O no reaction OH HO TH. HO

a. 8. b. OH Fill in the starting material for the following reaction. ? 1. NaOH 2. HgO+ 人無 3. Hy / Raney Ni C. . Br d. 己 e. 己 OH

Predict the reagent(s) needed to perform the following reaction. O OH O

Saved Normal BIIIU fxl Ix Actual mass used in solution prep (g) Volume solution prepared Measured conductivity (uS/cm) Substance 0.1 g Naci 0.1003 100 mL 1149 0.1 g Nal 0.10 100 ml 419 Calculate the mass of Nal that would be necessary to yield the same conductivity as the NaCl solution. Clearly show these calculations in your lab notebook. Saved T BII U X X + fr Normal

18. Which reagent(s) will best complete the following reaction? NO2 NH2 H2SO4 HCI, Fe NaNH, NH3, HCI 1. KMnOд, НО", д 2. H¯ II III IV V d. IV е. V а. I b. II с. II

Select the incorrect reaction. NH2 1. NaNO2, HCI 2. CuCN a CN O b. NO2 NH2 Sn Oc Br H₂N Ph NaBH₂CN HCI Br HN Ph O d. се 忌 CN 1. KOH NH 2. Br Ph 3. KOH, H₂O 1. LAH 2. H₂O J H2N 'N