Осуществите цепочку превращений.
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Условие:

АlBr³→Al(NO³)³→Al(OH)³→AlBr³

1) AlBr³+3AgNO³= Al(NO³)³+ 3AgBr↓

2) Al(NO³)³+3NaOH = Al(OH)³+ 3NaNO³

3) Al(OH)³+3HBr = AlBr³+ 3H²O

dano:

m(coo)=25g

v(

h2+coo=co+h2o

m(coo)=59g/mol+16g/mol=75g/mol

m(h2)=2g/mol

m(h2)=2g*25g/75g=0.6g

n(h2)=0.6g/2g/mol=0.3mol

v(h2)=0.3ml*22.4l/mol=6.72l

аgno3=ag+ + no3-

znso4=zn+ + so4 2-

aucl3=au3+ + cl-