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(4d-202) A buffer solution is made by mixing H3PO4 and NaH2PO4 in water. How does this buffer system neutralize an addition of 5 mL of 0.45 M NaOH? Choose one of the options below. • The H3PO4, as a weak acid, will neutralize the added NaOH • The NaH2PO4, as a weak base, will neutralize the added NaOH • The H3PO4, as a weak base, will neutralize the added NaOH • The NaH2PO4, as a weak acid, will neutralize the added NaOH For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 14px A v Ix Q x² X, g ST 田用国 EXE ABC Ť {;} +) P. O WORDS POWERED BY TINY +]

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Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic steps. Be sure to account for all bond-breaking and bond-making steps. :O: lalalalalalalalala H Select to Add Arrows :O: N(Et) 3 + 'N' 'N FEB 23 O 1 Problem 12 of 20 Please select a drawing or reagent from the question area tv Nill Ae /A W O Aa 2 Submit

0 The target diol is synthesized in one step from 1-methylcyclopentene, but your lab partner exhausted the supply of that alkene. Fortunately, you have plenty of isomers (CH₁) on hand from which to synthesize 1-methylcyclopentene and, ultimately, the diol. Provide the missing reagents and organic structures needed to most efficiently produce the target product. reagent 1 Compound A Draw compound A. Select Draw Rings More с H Compound B Erase reagent 2 Identify reagent 1. reagent 3 H3C.. HO ....|H OH

Dangerous Paint Stripper Jessica has a summer job working for the city parks program. She has been using a cleaner called “Graffiti Gone” to remove graffiti from the bathrooms. She has to take a lot of breaks, because the chemical makes her throat burn. It also makes her feel dizzy sometimes, especially when the bathrooms don’t have very many windows. On the label, she sees that the cleaner has methylene chloride in it. She feels like she’s managing to get the work done, but she is worried about feeling dizzy. She wants to find out more about this chemical, what harm it can cause, and whether there are safer ways to do this work. Questions for following story. 1. What went right in this situation? 2. What went wrong in this situation? 3. What steps should be taken in this workplace to make sure employees are better protected and prepared the next time?

Α1 + _Pb(NO3)2 --> Reaction Type: S D, SD, DD, or C?

need d-f

Br CI 162 CI- 209 NH₂ 1,4-dibromobutane NaH, DMSO, rt, 52% AICI 3, DCM, 5 to 15 °C 88% from 208 P

The PCC (1-piperidinocyclohexane carbonitrile) content of a clandestinely synthesized PCP (phencyclidine) sample can be determined by precipitating and weighing the product: PCC + Phenylmagnesium Bromide → PCP MW = 186.258 g/mole MW = 181.31 g/mole MW 243.387 g/mole In one analysis, 0.702 g of sample was dissolved in 25 mL of cylcohexanone and 1 g of phenylmagnesium bromide was added. After 25 minutes, the precipitate was filtered, washed with acetone, dried at 110°C, and found to weigh 0.869 3 grams. Find the recovery in wt% of PCC in the sample. In another analysis, the same sample was found to contain 5.17% of another impurity. What is the separation factor of this impurity in relation to PCC?

Figene 11-1 A В с D E

Can you show the reaction mechanism step-by-step for  C₃H₈O (l)  → C3H6 (g) + H2O (l) propan-1-ol    →    propene + water Please show the electron movement and the way in which the bonds break. Can you please also show how many bonds there are and what type they are (eg. Sigma, Pi)? Thanks.

10:27 0 A shop O O 7 l 87% i AIATS For Two Year Medic. A 48 /180 (02:56 hr min Mark for Review Which of the following compounds can exhibit tautomerism? OH Clear Response II III

Refer to the following information to answer questions 1 to 9: As a biotechnologist working for a pharmaceutical company, you as tasked with preparing the cardiac antiarrhythmic agent Amelfolide from p-nitrobenzyl chloride and 2,6-dimethyl aniline (Figure 2.1). You are provided the starting materials and asked to prepare 7.50g of pure material. No other instructions are given to you. MW 2,6-dimethylaniline = 121.18 g/mol MW p-nitrobenzyl chloride = 185.56 g/mol MW Amelfoliode = 270.29 g/mol %3D NH2 CI O2N O2N When developing a synthetic scheme, the first thing to do is check the scientific literature to see if someone has done this reaction before you. Upon performing a literature search, you identify a publication where a group from Japan has performed the same reaction you are tasked with completing. The paper is in Japanese and you cannot read the details of the procedure, however, you can make out that the reaction is performed using DCM as the solvent and proceeds with a yield of…