Laporan Praktikum Kimia Fisika2...

LAPORAN PRAKTIKUM KIMIA FISIKA OKSIDASI ET ETANOL OLEH CHROM(VI)

PERCOBAAN 9 OKSIDASI ETANOL OLEH CHROM(VI) A.

B.

C.

Tujuan Perc!aan Perc!aan "n" !er#ujuan un#u$ %enen#u$an r&e rea$'" &an $n'#an#a aju rea$'" $'"&a'" e#an e cr%(VI). *a$#u &an Te%+a# , Har"-Tana , *a$#u ,  Te%+a# , Da'ar Ter"

E#an &a+a# &"$'"&a'" %enja&" a'a% a'e#a#. Daa% +erc!aan "n" /a# +en$'"&a'" 0an &"una$an a&aa Cr(VI) &aa% !en#u$ CrO1C2 0an &"'"a+$an &enan %earu#$an Ka"u% B"$ar!na#(K3Cr3O4) &aa% a'a% $r"&a5 0an % enja&" , Cr3O672 8 H3O 8 C2

CrO1C2 8 :H3O...............(;)

Daa% $'"&a'" e#an e CrO1C25 a#% Cr &aa% %enaa%" re&u$'" &ar" Cr(VI) %enja&" Cr(III)5 %enuru# rea$'" , ;H3O 8 :CH1CH3OH 8 . Dar" rea$'" (Q) #er"a# !aa ju%a Cr(VI) 0an a&a &aa% aru#an &a+a# &"#en#u$an &ar" ju%a I3 0an #er!en#u$ +a&a rea$'" (Q)5 'e"na , CrO1C2  :I3 Pa&a rea$'" () #ern0a#a ju%a I3 "#u &""#un &ar" ju%a Na3S3O1 0an a!"' &aa% #"#ra'" I3  S3O172 Pe$erjaan a"n 0an aru' &"a$u$an #ere!" &auu a&aa %en'#an&ar$an aru#an Cr(VI) $arena aru#an "n" #"&a$ #er%a'u$ aru#an '#an&ar +r"%er. S#an&ar"'a'" &"a$u$an 'a%a &enan cara +enen#uan $n'en#ra'" Cr(VI) &"a#a'5 0a"#u %eau" rea$'" (Q) &an () %ena%!a$an aru#an KI &an 'e#ea "#u &"!er" aru#an $anj". Mua%ua &"#a%!a aru#an KI !ere!" &an $ee!"an KI &"#"#ra'" &enan aru#an Na3S3O1.(T"% K"%"a F"'"$a.;) Daa% '"'#e% #er##u+ 0an $n'#an5 aju rea$'" &"&en"'"$an 'ecara 'e&erana 'e!aa" +eru!aan $n'en#ra'" &ar" rea$#an a#au +r&u$ &aa% 'e#"a+ 'a#uan a$#u. Na%un5 aju rea$'" jua &a+a# &"$e#au" %eau" +eru!aan %ua#an5 +eru!aan 'u&u# +u#ar a#au+un +eru!aan "n&e$' !"a' 0an &"a$u$an %eau" ana"'a '"$ ( Ir%aMn.;.:) Kr%"u% %e%+un0a" $nura'" ee$#rn :&