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c22b88241e4c37eb15856ecef4f5d442

Submitted by admin on Tue, 03/09/2021 - 17:51
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In reactivul Schweitzer se dizolva:

fc99105ecf861eabcb496161863bcdfc

Submitted by admin on Tue, 03/09/2021 - 17:51
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In reactia de oxidare energica a 3-hexenei:

a8058350045a2a44fbb9aee9b9f9720f

Submitted by admin on Tue, 03/09/2021 - 17:51
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Un alfa-aminoacid standard se decarboxileaza si se transforma intr-un alt aminoacid, a carui masa moleculara este mai mica cu 29,9% fata de primul. Alfa-aminoacidul initial este:

12b6100fbefc4a91bc0bfc964a6081ed

Submitted by admin on Tue, 03/09/2021 - 17:51
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Compusi rezultati in reactia dintre derivatii halogenati si cianura de potasiu sunt intermediari pentru obtinerea:

a9bdce695c487ab0f6dc47175f177e84

Submitted by admin on Tue, 03/09/2021 - 17:51
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Se clorureaza benzenul pentru obtinerea monoclorobenzenului.Daca in amestecul de reactie se gasesc monoclorobenzen, diclorobenzen si benzen nereactionat in raportul molar respectiv 7:2:1, conversia utila,conversia totala si randamentul transformarii benzenului au fost:

2c6dc951ce8753b8b4f28577c81ac08b

Submitted by admin on Tue, 03/09/2021 - 17:51
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Prin oxidarea catalitica a benzenului,urmata de hidrogenarea produsului organic se obtine:

47cbe8cdf6304358143dfb4ec0f21c00

Submitted by admin on Tue, 03/09/2021 - 17:51
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Se amesteca 200 mL solutie 0,02M de (+) acid glutamic cu 100 mL solutie 0,03M (-) acid glutamic si respectiv 500 mL solutie de glicina. Amestecul rezultat este:

3e4c966205610a023bfa243d8e37d1e4

Submitted by admin on Tue, 03/09/2021 - 17:51
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Daca 11,12 g amestec C4H8 si C4H6 reactioneaza cu 6,36 g reactiv Tollens Raportul molar C4H6:C4H8 din amestec a fost:

a4f0083cd3a83648ce9b7b4dced7e9fc

Submitted by admin on Tue, 03/09/2021 - 17:51
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Numarul de sarcini pozitive ,la pH=1, ale tetrapeptidei alanil-lisil-glicil-lisina este

0093f20da08e45ad0c8a6524001477fd

Submitted by admin on Tue, 03/09/2021 - 17:51
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