prob1. In compozitia multor creme se afla, ca agent de emulsionare, un compus organic A, obtinut prin etoxilarea amoniacului, care contine 9,396% N. a) Identificati compusul etoxilat e toxilat A b) !alculati "olumul de amoniac si masa de oxid de etena, necesara obtinerii a #96 $g de compus etoxilat A, A, daca randamentul cu care se consuma ambii reactanti este de & %. '. 11( m cubi, 66& $g N3 * n!(+ - N3n/!(+)n 1 mol N 3n/!(+)n 0 1n*+#n0++n*1 ++n*1 g ..........................1+ g N 1&& g ................................9,396 ................................9,396 g 9,396/++n*1)01+&& +13,+(+n*1#9,3(01+&& n03 2ormula compusului etoxilat ! (!(N!(!( 4 !(!( N/!(+)3 1 $mol N/! (+)3 0 1+9 $g 1 $mol ! (+ 0 numarul de $moli obtinuti practic0#9651+90+ $moli 0cantitatea obtinuta practic 71&&5cantitatea obtinuta teoretic cantitatea obtinuta teoretic0 cantitatea obtinuta practic 71&&5 cantitatea obtinuta teoretic0 + 71&&5&0 # $moli teoretic /din calcule) ((,+m3......37++ $g........1 $mol N3 * 3!(+ - N/!(+)3 x..................8. x..................8...................# ..................# $moli 3 x011( m 8066& $g
prob (. rin tratarea anilinei cu oxid de etena se obtine un compus organic A cu compozitia procentuala de masa &,&3%!, ,&(9%, 11,6%, 1&,(1%N. a) Identificati compusul A b) !alculati masa de compus etoxilat A care se obtine din 911,6 911,6 ml de anilina/ densitate01,&(g5cm cubi), considerand reactiile totale. '.b) 13&g !6#N( * n!(+ - !6#N(n/!(+)n 1 mol ! 6#N(n/!(+)n 0 * 1+ *(n * +#n093*++n 93*++n g................................1+ g................................1+ g N 1&& g......................................1&,(1 g......................................1&,(1 g N 1&,(1/93*++n)01+&& 9#&,(+ * ++9,#9(n 0 1+&& n01 2ormula compusului ! 6#N !(!(
:0m5; m0:7;01,&(7911,6093& g 1 mol ! 6#N( 0 93 g 1 mol ! 6#N !(!(013 g 93 g......................................13 g !6#N( * !(+ - !6#N !(!( 93& g.......................................x x013& g
