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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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Referitor la serina nu este adevarata informatia:

7737cbbebbc2a566ee50ef1b73eabe5a

Submitted by admin on Tue, 03/09/2021 - 17:51
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Aspirina (acidul acetilsalicilic) se obtine din reactia:

b1fcf41ebcc74cf19e2f4356d7fe1fa6

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

1aca350c52364d6007cdcc23a3a5bc4a

Submitted by admin on Tue, 03/09/2021 - 17:51
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Se prepara gluconat de magneziu din glucoza cu randament de 60%.Numarul de moli de gluconat de magneziu obtinut dintr-un mol de glucoza este:

120c513d6df00bc5ef8e9ece33ab6007

Submitted by admin on Tue, 03/09/2021 - 17:51
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Prin fermentatia alcoolica a 4 moli de glucoza:

3e12d013563d1294ebb4114bf540912b

Submitted by admin on Tue, 03/09/2021 - 17:51
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Prin autocondensarea aldolica ,dimoleculara, a acetonaftonei (metil-naftil-cetona) se obtine un compus:

09fc42f9ab79dcf5308fc0f4d22a4d39

Submitted by admin on Tue, 03/09/2021 - 17:51
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Numarul de grame de apa necesar hidrolizei totale a unui mol de Lis-Ala-Gli-Ala-Val-Glu este:

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