ai tinh mat lam nhanh nhat??

T

tmt.bg

PTHH:H2SO4+BACL2---2HCL+BASO4...................nH2S04=90\49g..................mbacl2=32g---nBACL2=16\89(MOL)\Rightarrow
H2SO4 DƯ (B)c%=(180\320)*100=56.25%
(c)nBASO4=nBACL2=16/89\Rightarrowmbaso4=16/89*203=36.49G ::)
 
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