解,设生成BaSO4质量为X.HCl质量为Y.
BaCl2+H2SO4=BaSO4↓+2HCl
98 233 73
100g*9.8% X Y
98/100g*9.8%=233/X 98/100g*9.8%=73/X
X=23.3g Y=7.3g
设NaOH质量为Z.
HCl+NaOH=NaCl+H2O
73 40
7.3g Z
73/7.3g=40/Z
Z=4g
NaOH溶液浓度4g/100g=4%
解,设生成BaSO4质量为X.HCl质量为Y.
BaCl2+H2SO4=BaSO4↓+2HCl
98 233 73
100g*9.8% X Y
98/100g*9.8%=233/X 98/100g*9.8%=73/X
X=23.3g Y=7.3g
设NaOH质量为Z.
HCl+NaOH=NaCl+H2O
73 40
7.3g Z
73/7.3g=40/Z
Z=4g
NaOH溶液浓度4g/100g=4%