(来学网)硝酸分子量63.02,比重1.42,硝酸液的百分比浓度是
  • A.
    (来学网)42.5
  • B.
    (来学网)53.9
  • C.
    (来学网)63
  • D.
    (来学网)70.98
  • E.
    (来学网)72.39