H2SO4 + BaCl2 = 2HCl + BaSO4↓
n(BaSO4) = m(BaSO4)/M(BaSO4) = 233/233 = 1(моль)
по уравнению реакции n(H2SO4) = n(BaSO4) = 1(моль)
m(H2SO4) = n(H2SO4)*M(H2SO4) = 1*98 = 98(г)
ω(H2SO4) = (m(H2SO4)/mp-pa(H2SO4))*100%
mp-pa(H2SO4) = m(H2SO4)*100%/ω(H2SO4) = 98*100%/9,8% = 1000(г) = 1(кг)
Ответ: mp-pa(H2SO4) = 1 кг
H2SO4 + BaCl2 = 2HCl + BaSO4↓
n(BaSO4) = m(BaSO4)/M(BaSO4) = 233/233 = 1(моль)
по уравнению реакции n(H2SO4) = n(BaSO4) = 1(моль)
m(H2SO4) = n(H2SO4)*M(H2SO4) = 1*98 = 98(г)
ω(H2SO4) = (m(H2SO4)/mp-pa(H2SO4))*100%
mp-pa(H2SO4) = m(H2SO4)*100%/ω(H2SO4) = 98*100%/9,8% = 1000(г) = 1(кг)
Ответ: mp-pa(H2SO4) = 1 кг