ω1(H2O2) = (m(H2O2)/m1(раствора))*100%
m(H2O2) = m1(раствора)*ω1(H2O2)/100% = 150*30%/100% = 45(г)
ω2(H2O2) = (m(H2O2)/m2(раствора))*100%
m2(раствора) = m(H2O2)*100%/ω2(H2O2) = 45*100%/3% = 1500(г)
mдоб(H2O) = m2(раствора) - m1(раствора) = 1500 - 150 = 1350(г)
Vдоб(H2O) = mдоб(H2O)/ρ(H2O) = 1350/1 = 1350(мл) = 1,35(л)
Ответ: Vдоб(H2O) = 1,35 л
ω1(H2O2) = (m(H2O2)/m1(раствора))*100%
m(H2O2) = m1(раствора)*ω1(H2O2)/100% = 150*30%/100% = 45(г)
ω2(H2O2) = (m(H2O2)/m2(раствора))*100%
m2(раствора) = m(H2O2)*100%/ω2(H2O2) = 45*100%/3% = 1500(г)
mдоб(H2O) = m2(раствора) - m1(раствора) = 1500 - 150 = 1350(г)
Vдоб(H2O) = mдоб(H2O)/ρ(H2O) = 1350/1 = 1350(мл) = 1,35(л)
Ответ: Vдоб(H2O) = 1,35 л