4-rasm.
Ki pp
apparati
yuvgichni ulang va u n d a n 10—15 m in u t davom ida kuchsiz
k a r b o n a t a n g id r id g a z i o q im in i o ‘tk a z in g . Y u v g ic h
sk lyankadagi suyuqlik tark ib id a v o d o ro d x lorid bo rlig in i
a n iq la n g . K ip p a p p a ra tid a n y u v g ichn i
o lin g va un g a
su v sizlan tirilg an m is su lfat b ila n to 'ld irilg a n xlorkalsiyli
nay n i u lang , h a m d a u n d a n k arb o n at a n g id rid o q im in i
o 'tk a z in g . S o d ir b o ‘lgan h o d isan i kuzatin g . C 0 2
n i suv
b u g ‘i va HC1 d a n to za lash u c h u n u T ish ch e n k o shisha
id ish lari t o ‘ld irilg an e ritm a la rd a n o ‘tk a z ila d i; b u la rn in g
biriga natriy bikarbonatning to ‘yingan
eritm asi, ikkinchisiga
k o n se n trla n g a n sulfat kislo ta soling an b o ‘ladi. Bu ikki
idishdan o ‘tib to zalan g an C 0 2 kolbaga yig‘iladi. Q u ru q va
to za k a rb o n a t an g id rid n i qan d ay olish m u m kin . R eaksiya
ten g la m a larin i yozing.