称取KC10.447g和NaCl9.36g,溶于蒸馏水倒入500ml容量瓶中,稀释至刻度,此时溶液中Na、K浓度相当于(原子量K=39,Na=23,Cl=35.5)

  • ANa140mmol/L;K5.5mmol/L
  • DNa145mmol/L;K6.0mmol/L
  • GNa150mmol/L;K5.5mmol/L
  • JNa155mmol/L;K5mmol/L
  • MNa160mmol/L;K6.0mmol/L
参考答案: E
解题思路: >>>立即刷题