H2SO4+BaCl2->2HCl+BaSO4(осадок). n(BaSO4)=m/M=466/233=2моль=n(H2SO4), m(H2SO4,100%)=n*M=2*98=196г, m(H2SO4,9,8%)=m(H2SO4,100%)*100%/9,8%=196*100/9,8=2000г. ответ: m(H2SO4)=2000г.
H2SO4+BaCl2->2HCl+BaSO4(осадок). n(BaSO4)=m/M=466/233=2моль=n(H2SO4), m(H2SO4,100%)=n*M=2*98=196г, m(H2SO4,9,8%)=m(H2SO4,100%)*100%/9,8%=196*100/9,8=2000г. ответ: m(H2SO4)=2000г.