(来学网)用硫代硫酸钠标定碘标准溶液,其反应式为2Na2S2O3+I2=Na2S4O6+2NaI,已知15.0ml碘溶液,消耗了30.0ml,0.1000mol/L的硫代硫酸钠溶液,碘溶液的浓度是
  • A.
    (来学网)0.0500mol/L
  • B.
    (来学网)0.1000mol/L
  • C.
    (来学网)0.2000mol/L
  • D.
    (来学网)0.5000mol/L
  • E.
    (来学网)1.0000mol/L