1.D 2.B 3.B 4.B
5 64.98~109.98 正常
6 溶液物质的量浓度偏低
7 250/1000X1.0=V/1000X18 V=13.9ml
8 0.8:0.5:0.0625:0.007
9 (1) 0.5mol (2)0.5mol 1.0mol
10 40