An unknown white powder have been seized by the police on the country border. The chemical analysis is yet to be performed. Although the powder is suspected to be a precursor for an explosive, there is no preliminary information on whether it has organic, inorganic or metallic composition. CUSTOMS Figure 1. Image of the seized powder. (a) You are asked to propose an analytical strategy to establish whether the powder is consistent with explosive. Your proposal should include: (i) The sequence that the techniques and sample manipulation steps will be applied including decision gates etc. (you might wish to illustrate this sequence with a flow diagram). (ii) A brief justification for using each of the proposed techniques in the context this analysis.

cbz-N- "№ Ph -arph 0 chz - N-OH Ка(03, меон,

please,don't provied handwriting solution...

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Assignment Score: 70.6% Give Up? E Feedback Resources Resu Question 28 of 34 <. O Attempt Draw ethylmethylamine (N-methylethanamine). Ethylmethylamine is a O 2° amine. O 3° amine. 1° amine. H. O 4° amine. Incorrect

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Try: Ph 1. LDA, THF, -78°C 2. PhSeCl 3. H₂O₂ 1. LDA, THF, -78°C 2. Warm to 25°C 3. PhSeCl 4. H₂O₂

Solve correctly please. (Gpt/Ai wrong answer not allowed)

all 43% LTE 2:34 Question 4 of 8 Submit Construct the expression for Ka for the weak acid, NH,*. NH,*(aq) + H,0(10) = H,0*(aq) + NH;(aq) 1 Based on the definition of Ka, drag the tiles to construct the expression for the given acid. Ka %3D 5 RESET [H,O] [H,O*] [OH-] [NH,] [NH,] [NH,] 2[H,0O] 2[H,0*] 2[OH-] 2[NH,] 2[NH,] 2[NH,] [H,0]? [H,0*12 [OH-]? [NH,*)? [NH,]? [NH,-]? II