(来学网)1升溶液中含纯H2SO4 4.90g,则此溶液的浓度C(1/2H2SO4)是多少
  • A.
    (来学网)0.1mol/L
  • B.
    (来学网)0.05mol/L
  • C.
    (来学网)0.02mol/L
  • D.
    (来学网)0.01mo/L
  • E.
    (来学网)0.001mol/L