\(\frac{100.1,137}{98}\text{x20%=0.232 mol}\)
\(\text{+ PTHH: H2SO4 + BaCl2 → BaSO4 ↓ + 2HCl}\)
+ mdd sau pư= 100x 1.137+ 400 - 0.232x233= 459.644g
+ A= mBaSO4= 0.232x233=54.056 g
\(\text{+ C% HCl= }\frac{0,464.36,5}{459,644}\text{x100%=3.68%}\)
Này mới đúng nhé
mdd H2SO4 = 113.7 g
mH2SO4 = 113.7*20/100=22.74 g
nH2SO4 = 0.232 mol
BaCl2 + H2SO4 --> BaSO4 + 2HCl
0.232_____0.232____0.232___0.464
mBaSO4 = mA = 54.056 g
mdd = 113.7 + 400 - 54.056 = 459.644 g
C%HCl = 0.464*36.5/459.644 *100% =3.68 %
mdd H2SO4 = 113.7 g
mH2SO4 = 113.7*20/100=22.74 g
nH2SO4 = 0.232 mol
BaCl2 + H2SO4 --> BaSO4 + 2HCl
0.232_____0.232____0.232___0.232
mBaSO4 = mA = 54.056 g
mdd = 113.7 + 400 - 54.056 = 459.644 g
C%HCl = 0.232*36.5/459.644 *100% = 1.84%