Question

Calculati masa de solutie de NaOH de concentratie 40% care reactioneaza cu 18,3g de Adrenalina

Answer 1

Adrenalina prezinta doua grupe de tip fenolic ce vor reactiona cu NaOH.
adrenalina + 2 NaOH = produsi....
183 g adrenalina ..... reactioneaza cu.... 2*40 g NaOH
18.3 g adrenalina......................................x g NaOH
x=8 g NaOH (=md)
c=md*100/ms => ms=800/40=20 g solutie NaOH 40%