(来学网)将C(NaOH)=5mol/LNaOH溶液200ml,加水稀释至1000ml,则稀释后的浓度C(NaOH)为
  • A.
    (来学网)2mol/L
  • B.
    (来学网)1mol/L
  • C.
    (来学网)2.5mol/L
  • D.
    (来学网)1.5mol/L
  • E.
    (来学网)3mol/L